./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/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_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/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_5b34d0f2-557f-49df-9db0-0feea8e37151/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 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:53:31,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:53:31,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:53:31,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:53:31,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:53:31,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:53:31,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:53:31,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:53:31,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:53:31,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:53:31,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:53:31,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:53:31,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:53:31,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:53:31,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:53:31,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:53:31,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:53:31,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:53:31,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:53:31,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:53:31,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:53:31,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:53:31,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:53:31,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:53:31,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:53:31,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:53:31,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:53:31,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:53:31,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:53:31,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:53:31,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:53:31,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:53:31,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:53:31,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:53:31,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:53:31,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:53:31,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:53:31,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:53:31,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:53:31,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:53:31,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:53:31,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:53:31,366 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:53:31,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:53:31,367 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:53:31,367 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:53:31,368 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:53:31,368 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:53:31,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:53:31,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:53:31,369 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:53:31,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:53:31,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:53:31,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:53:31,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:53:31,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:53:31,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:53:31,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:53:31,372 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:53:31,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:53:31,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:53:31,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:53:31,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:53:31,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:53:31,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:53:31,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:53:31,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:53:31,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:53:31,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:53:31,374 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:53:31,374 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:53:31,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:53:31,374 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_5b34d0f2-557f-49df-9db0-0feea8e37151/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 [2022-11-18 20:53:31,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:53:31,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:53:31,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:53:31,704 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:53:31,705 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:53:31,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-11-18 20:53:31,785 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/data/2df54a8e0/a458255a6c254ce09d4bbb4feb443792/FLAG0c452a4cf [2022-11-18 20:53:32,895 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:53:32,896 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-11-18 20:53:32,963 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/data/2df54a8e0/a458255a6c254ce09d4bbb4feb443792/FLAG0c452a4cf [2022-11-18 20:53:33,167 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/data/2df54a8e0/a458255a6c254ce09d4bbb4feb443792 [2022-11-18 20:53:33,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:53:33,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:53:33,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:53:33,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:53:33,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:53:33,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:53:33" (1/1) ... [2022-11-18 20:53:33,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b5e3ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:33, skipping insertion in model container [2022-11-18 20:53:33,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:53:33" (1/1) ... [2022-11-18 20:53:33,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:53:33,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:53:37,007 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_5b34d0f2-557f-49df-9db0-0feea8e37151/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2022-11-18 20:53:37,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:53:37,182 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:53:37,677 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_5b34d0f2-557f-49df-9db0-0feea8e37151/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2022-11-18 20:53:37,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:53:37,829 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:53:37,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:37 WrapperNode [2022-11-18 20:53:37,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:53:37,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:53:37,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:53:37,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:53:37,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:37" (1/1) ... [2022-11-18 20:53:37,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:37" (1/1) ... [2022-11-18 20:53:38,314 INFO L138 Inliner]: procedures = 440, calls = 4554, calls flagged for inlining = 181, calls inlined = 178, statements flattened = 8478 [2022-11-18 20:53:38,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:53:38,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:53:38,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:53:38,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:53:38,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:37" (1/1) ... [2022-11-18 20:53:38,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:37" (1/1) ... [2022-11-18 20:53:38,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:37" (1/1) ... [2022-11-18 20:53:38,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:37" (1/1) ... [2022-11-18 20:53:38,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:37" (1/1) ... [2022-11-18 20:53:38,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:37" (1/1) ... [2022-11-18 20:53:38,715 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:37" (1/1) ... [2022-11-18 20:53:38,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:37" (1/1) ... [2022-11-18 20:53:38,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:53:38,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:53:38,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:53:38,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:53:38,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:37" (1/1) ... [2022-11-18 20:53:38,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:53:38,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:53:38,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:53:38,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:53:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-11-18 20:53:38,864 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-11-18 20:53:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-18 20:53:38,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-18 20:53:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2022-11-18 20:53:38,865 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2022-11-18 20:53:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-11-18 20:53:38,866 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-11-18 20:53:38,866 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-18 20:53:38,866 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-18 20:53:38,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-18 20:53:38,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-18 20:53:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-18 20:53:38,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-18 20:53:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 20:53:38,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 20:53:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2022-11-18 20:53:38,868 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2022-11-18 20:53:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2022-11-18 20:53:38,868 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2022-11-18 20:53:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_writereg [2022-11-18 20:53:38,868 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_writereg [2022-11-18 20:53:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-18 20:53:38,869 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-18 20:53:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_generic_frame_duration [2022-11-18 20:53:38,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_generic_frame_duration [2022-11-18 20:53:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-18 20:53:38,869 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-18 20:53:38,870 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-18 20:53:38,870 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-18 20:53:38,870 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-11-18 20:53:38,870 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-11-18 20:53:38,870 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-18 20:53:38,870 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-18 20:53:38,871 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 20:53:38,871 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 20:53:38,871 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2022-11-18 20:53:38,871 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2022-11-18 20:53:38,871 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2022-11-18 20:53:38,872 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2022-11-18 20:53:38,872 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-11-18 20:53:38,872 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-11-18 20:53:38,872 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2022-11-18 20:53:38,872 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2022-11-18 20:53:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2022-11-18 20:53:38,873 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2022-11-18 20:53:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2022-11-18 20:53:38,873 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2022-11-18 20:53:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 20:53:38,873 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 20:53:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-18 20:53:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-18 20:53:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:53:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-11-18 20:53:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-11-18 20:53:38,875 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-11-18 20:53:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-11-18 20:53:38,875 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-18 20:53:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-18 20:53:38,875 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2022-11-18 20:53:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2022-11-18 20:53:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 20:53:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-11-18 20:53:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-11-18 20:53:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-18 20:53:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-18 20:53:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 20:53:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 20:53:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2022-11-18 20:53:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2022-11-18 20:53:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 20:53:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-11-18 20:53:38,878 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-11-18 20:53:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2022-11-18 20:53:38,878 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2022-11-18 20:53:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:53:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_10 [2022-11-18 20:53:38,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_10 [2022-11-18 20:53:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-18 20:53:38,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-18 20:53:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2022-11-18 20:53:38,880 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2022-11-18 20:53:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 20:53:38,880 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 20:53:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-11-18 20:53:38,880 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-11-18 20:53:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-18 20:53:38,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-18 20:53:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-18 20:53:38,881 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-18 20:53:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2022-11-18 20:53:38,881 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2022-11-18 20:53:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2022-11-18 20:53:38,882 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2022-11-18 20:53:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-18 20:53:38,882 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-18 20:53:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-18 20:53:38,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-18 20:53:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-11-18 20:53:38,883 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-11-18 20:53:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-11-18 20:53:38,883 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-11-18 20:53:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2022-11-18 20:53:38,884 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2022-11-18 20:53:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-18 20:53:38,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-18 20:53:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-18 20:53:38,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-18 20:53:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:53:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:53:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-18 20:53:38,885 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-18 20:53:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-11-18 20:53:38,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-11-18 20:53:38,886 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-11-18 20:53:38,886 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-11-18 20:53:38,886 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 20:53:38,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 20:53:38,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:53:38,887 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:53:38,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:53:38,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_10 [2022-11-18 20:53:38,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_10 [2022-11-18 20:53:38,887 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-11-18 20:53:38,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-11-18 20:53:38,888 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_init [2022-11-18 20:53:38,888 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_init [2022-11-18 20:53:38,888 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2022-11-18 20:53:38,888 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2022-11-18 20:53:38,889 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2022-11-18 20:53:38,889 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2022-11-18 20:53:38,889 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam2 [2022-11-18 20:53:38,889 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam2 [2022-11-18 20:53:38,889 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-11-18 20:53:38,889 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-11-18 20:53:38,890 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2022-11-18 20:53:38,890 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2022-11-18 20:53:38,890 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2022-11-18 20:53:38,890 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2022-11-18 20:53:38,890 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_basic_rates [2022-11-18 20:53:38,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_basic_rates [2022-11-18 20:53:38,891 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-18 20:53:38,891 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-18 20:53:38,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:53:38,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:53:38,891 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-18 20:53:38,892 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-18 20:53:38,892 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2022-11-18 20:53:38,892 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2022-11-18 20:53:38,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 20:53:38,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 20:53:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_tx [2022-11-18 20:53:38,893 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_tx [2022-11-18 20:53:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 20:53:38,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 20:53:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2022-11-18 20:53:38,893 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2022-11-18 20:53:38,894 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-18 20:53:38,894 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-18 20:53:38,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_5 [2022-11-18 20:53:38,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_5 [2022-11-18 20:53:38,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_4 [2022-11-18 20:53:38,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_4 [2022-11-18 20:53:38,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_9 [2022-11-18 20:53:38,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_9 [2022-11-18 20:53:38,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2022-11-18 20:53:38,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2022-11-18 20:53:38,895 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-11-18 20:53:38,895 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-11-18 20:53:38,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_7 [2022-11-18 20:53:38,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_7 [2022-11-18 20:53:38,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-11-18 20:53:38,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-11-18 20:53:38,896 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-11-18 20:53:38,897 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-11-18 20:53:38,897 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2022-11-18 20:53:38,897 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2022-11-18 20:53:38,897 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_set_channel [2022-11-18 20:53:38,897 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_set_channel [2022-11-18 20:53:38,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 20:53:38,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 20:53:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-18 20:53:38,898 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-18 20:53:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-18 20:53:38,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-18 20:53:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2022-11-18 20:53:38,899 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2022-11-18 20:53:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 20:53:38,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 20:53:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-11-18 20:53:38,899 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-11-18 20:53:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 20:53:38,900 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 20:53:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_int_disable [2022-11-18 20:53:38,900 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_int_disable [2022-11-18 20:53:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-11-18 20:53:38,900 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-11-18 20:53:38,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:53:38,901 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2022-11-18 20:53:38,901 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2022-11-18 20:53:38,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:53:38,901 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_stop [2022-11-18 20:53:38,901 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_stop [2022-11-18 20:53:38,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-18 20:53:38,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-18 20:53:38,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:53:38,902 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_init [2022-11-18 20:53:38,902 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_init [2022-11-18 20:53:38,903 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-18 20:53:38,903 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-18 20:53:38,903 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-18 20:53:38,903 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-18 20:53:38,903 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2022-11-18 20:53:38,903 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2022-11-18 20:53:38,904 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2022-11-18 20:53:38,904 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2022-11-18 20:53:38,904 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2022-11-18 20:53:38,904 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2022-11-18 20:53:38,904 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_readreg [2022-11-18 20:53:38,904 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_readreg [2022-11-18 20:53:38,905 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_beacon_work [2022-11-18 20:53:38,905 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_beacon_work [2022-11-18 20:53:38,905 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2022-11-18 20:53:38,905 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2022-11-18 20:53:38,905 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-18 20:53:38,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-18 20:53:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-11-18 20:53:38,906 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-11-18 20:53:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_rx [2022-11-18 20:53:38,906 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_rx [2022-11-18 20:53:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2022-11-18 20:53:38,907 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2022-11-18 20:53:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:53:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-11-18 20:53:38,907 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-11-18 20:53:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-18 20:53:38,908 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-18 20:53:38,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 20:53:38,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 20:53:38,908 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2022-11-18 20:53:38,908 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2022-11-18 20:53:38,908 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2022-11-18 20:53:38,909 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2022-11-18 20:53:38,909 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_conf_ac_parm [2022-11-18 20:53:38,909 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_conf_ac_parm [2022-11-18 20:53:38,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-18 20:53:38,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-18 20:53:38,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-18 20:53:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-18 20:53:38,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-18 20:53:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-18 20:53:38,910 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_stop [2022-11-18 20:53:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_stop [2022-11-18 20:53:38,911 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-18 20:53:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-18 20:53:38,911 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2022-11-18 20:53:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2022-11-18 20:53:38,911 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-18 20:53:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-18 20:53:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-18 20:53:38,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-18 20:53:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-11-18 20:53:38,912 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-11-18 20:53:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2022-11-18 20:53:38,912 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2022-11-18 20:53:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:53:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2022-11-18 20:53:38,913 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2022-11-18 20:53:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_three_wire_io [2022-11-18 20:53:38,913 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_three_wire_io [2022-11-18 20:53:38,914 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2022-11-18 20:53:38,914 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2022-11-18 20:53:38,914 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-11-18 20:53:38,914 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-11-18 20:53:38,914 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-11-18 20:53:38,914 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-11-18 20:53:40,070 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:53:40,074 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:53:40,664 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 20:53:52,136 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:53:52,170 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:53:52,171 INFO L300 CfgBuilder]: Removed 78 assume(true) statements. [2022-11-18 20:53:52,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:53:52 BoogieIcfgContainer [2022-11-18 20:53:52,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:53:52,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:53:52,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:53:52,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:53:52,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:53:33" (1/3) ... [2022-11-18 20:53:52,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f2802a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:53:52, skipping insertion in model container [2022-11-18 20:53:52,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:37" (2/3) ... [2022-11-18 20:53:52,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f2802a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:53:52, skipping insertion in model container [2022-11-18 20:53:52,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:53:52" (3/3) ... [2022-11-18 20:53:52,189 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-11-18 20:53:52,215 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:53:52,216 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:53:52,360 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:53:52,368 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;@63fc1f36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:53:52,369 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:53:52,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 3862 states, 2272 states have (on average 1.3397887323943662) internal successors, (3044), 2427 states have internal predecessors, (3044), 1537 states have call successors, (1537), 130 states have call predecessors, (1537), 129 states have return successors, (1522), 1485 states have call predecessors, (1522), 1522 states have call successors, (1522) [2022-11-18 20:53:52,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-11-18 20:53:52,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:52,428 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:52,428 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:53:52,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:52,436 INFO L85 PathProgramCache]: Analyzing trace with hash -79573845, now seen corresponding path program 1 times [2022-11-18 20:53:52,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:52,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182173568] [2022-11-18 20:53:52,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:52,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:53:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:53:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:53:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:53:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:53:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:53:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:53:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:53:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:53:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:53:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:53:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:53:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:53:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:53:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:53:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:53:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 20:53:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:53:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 20:53:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:53:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-18 20:53:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:53:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 20:53:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:53:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-18 20:53:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-18 20:53:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-18 20:53:54,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-18 20:53:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-18 20:53:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-11-18 20:53:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:53:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2022-11-18 20:53:54,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:54,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182173568] [2022-11-18 20:53:54,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182173568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:54,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:54,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:53:54,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086795555] [2022-11-18 20:53:54,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:54,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:53:54,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:54,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:53:54,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:53:54,537 INFO L87 Difference]: Start difference. First operand has 3862 states, 2272 states have (on average 1.3397887323943662) internal successors, (3044), 2427 states have internal predecessors, (3044), 1537 states have call successors, (1537), 130 states have call predecessors, (1537), 129 states have return successors, (1522), 1485 states have call predecessors, (1522), 1522 states have call successors, (1522) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-18 20:54:00,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:54:02,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:54:13,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:13,583 INFO L93 Difference]: Finished difference Result 7691 states and 12289 transitions. [2022-11-18 20:54:13,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:54:13,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 277 [2022-11-18 20:54:13,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:13,642 INFO L225 Difference]: With dead ends: 7691 [2022-11-18 20:54:13,642 INFO L226 Difference]: Without dead ends: 3806 [2022-11-18 20:54:13,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:54:13,675 INFO L413 NwaCegarLoop]: 3027 mSDtfsCounter, 2550 mSDsluCounter, 2937 mSDsCounter, 0 mSdLazyCounter, 4366 mSolverCounterSat, 4655 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2561 SdHoareTripleChecker+Valid, 5964 SdHoareTripleChecker+Invalid, 9022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4655 IncrementalHoareTripleChecker+Valid, 4366 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:13,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2561 Valid, 5964 Invalid, 9022 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4655 Valid, 4366 Invalid, 1 Unknown, 0 Unchecked, 18.2s Time] [2022-11-18 20:54:13,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2022-11-18 20:54:14,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3600. [2022-11-18 20:54:14,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 2027 states have (on average 1.3231376418352245) internal successors, (2682), 2096 states have internal predecessors, (2682), 1444 states have call successors, (1444), 129 states have call predecessors, (1444), 128 states have return successors, (1443), 1406 states have call predecessors, (1443), 1443 states have call successors, (1443) [2022-11-18 20:54:14,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 5569 transitions. [2022-11-18 20:54:14,224 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 5569 transitions. Word has length 277 [2022-11-18 20:54:14,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:14,224 INFO L495 AbstractCegarLoop]: Abstraction has 3600 states and 5569 transitions. [2022-11-18 20:54:14,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-18 20:54:14,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5569 transitions. [2022-11-18 20:54:14,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-11-18 20:54:14,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:14,231 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:14,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:54:14,231 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:54:14,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:14,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1227432045, now seen corresponding path program 1 times [2022-11-18 20:54:14,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:14,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466457048] [2022-11-18 20:54:14,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:14,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:14,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:54:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:14,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:54:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:54:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:54:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:54:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:54:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:54:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:54:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:54:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:54:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:54:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:54:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:54:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:54:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:54:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:54:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 20:54:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:54:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 20:54:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:54:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-18 20:54:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:54:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 20:54:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:54:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-18 20:54:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-18 20:54:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-18 20:54:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-18 20:54:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-18 20:54:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-11-18 20:54:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:15,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2022-11-18 20:54:15,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:15,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466457048] [2022-11-18 20:54:15,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466457048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:15,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:15,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:54:15,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327682604] [2022-11-18 20:54:15,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:15,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:54:15,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:15,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:54:15,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:54:15,773 INFO L87 Difference]: Start difference. First operand 3600 states and 5569 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-18 20:54:17,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:54:19,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:54:21,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:54:23,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:54:27,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:54:28,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:54:32,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:54:33,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:54:35,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:54:58,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:58,630 INFO L93 Difference]: Finished difference Result 10499 states and 16324 transitions. [2022-11-18 20:54:58,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:54:58,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 277 [2022-11-18 20:54:58,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:58,687 INFO L225 Difference]: With dead ends: 10499 [2022-11-18 20:54:58,687 INFO L226 Difference]: Without dead ends: 6939 [2022-11-18 20:54:58,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:54:58,713 INFO L413 NwaCegarLoop]: 4109 mSDtfsCounter, 6496 mSDsluCounter, 8128 mSDsCounter, 0 mSdLazyCounter, 11481 mSolverCounterSat, 9703 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6883 SdHoareTripleChecker+Valid, 12237 SdHoareTripleChecker+Invalid, 21187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9703 IncrementalHoareTripleChecker+Valid, 11481 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:58,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6883 Valid, 12237 Invalid, 21187 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9703 Valid, 11481 Invalid, 3 Unknown, 0 Unchecked, 41.8s Time] [2022-11-18 20:54:58,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6939 states. [2022-11-18 20:54:59,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6939 to 6577. [2022-11-18 20:54:59,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6577 states, 3655 states have (on average 1.3239398084815321) internal successors, (4839), 3772 states have internal predecessors, (4839), 2676 states have call successors, (2676), 244 states have call predecessors, (2676), 245 states have return successors, (2684), 2622 states have call predecessors, (2684), 2675 states have call successors, (2684) [2022-11-18 20:54:59,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6577 states to 6577 states and 10199 transitions. [2022-11-18 20:54:59,394 INFO L78 Accepts]: Start accepts. Automaton has 6577 states and 10199 transitions. Word has length 277 [2022-11-18 20:54:59,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:59,397 INFO L495 AbstractCegarLoop]: Abstraction has 6577 states and 10199 transitions. [2022-11-18 20:54:59,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-18 20:54:59,398 INFO L276 IsEmpty]: Start isEmpty. Operand 6577 states and 10199 transitions. [2022-11-18 20:54:59,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-18 20:54:59,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:59,417 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 20:54:59,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:54:59,418 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:54:59,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:59,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1211576285, now seen corresponding path program 1 times [2022-11-18 20:54:59,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:59,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304060674] [2022-11-18 20:54:59,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:59,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:59,683 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:54:59,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [194417327] [2022-11-18 20:54:59,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:59,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:54:59,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:54:59,688 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:54:59,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:55:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:01,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 5998 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:55:01,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:02,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-18 20:55:02,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:02,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:02,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304060674] [2022-11-18 20:55:02,107 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:55:02,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194417327] [2022-11-18 20:55:02,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194417327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:02,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:02,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:55:02,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019797238] [2022-11-18 20:55:02,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:02,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:55:02,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:02,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:55:02,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:55:02,116 INFO L87 Difference]: Start difference. First operand 6577 states and 10199 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-18 20:55:03,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:03,078 INFO L93 Difference]: Finished difference Result 19681 states and 30539 transitions. [2022-11-18 20:55:03,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:55:03,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 328 [2022-11-18 20:55:03,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:03,207 INFO L225 Difference]: With dead ends: 19681 [2022-11-18 20:55:03,207 INFO L226 Difference]: Without dead ends: 13144 [2022-11-18 20:55:03,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:55:03,267 INFO L413 NwaCegarLoop]: 7108 mSDtfsCounter, 5499 mSDsluCounter, 19703 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5503 SdHoareTripleChecker+Valid, 26811 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:03,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5503 Valid, 26811 Invalid, 41 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:55:03,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13144 states. [2022-11-18 20:55:04,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13144 to 13129. [2022-11-18 20:55:04,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13129 states, 7303 states have (on average 1.324798028207586) internal successors, (9675), 7537 states have internal predecessors, (9675), 5333 states have call successors, (5333), 489 states have call predecessors, (5333), 492 states have return successors, (5362), 5226 states have call predecessors, (5362), 5332 states have call successors, (5362) [2022-11-18 20:55:04,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13129 states to 13129 states and 20370 transitions. [2022-11-18 20:55:04,803 INFO L78 Accepts]: Start accepts. Automaton has 13129 states and 20370 transitions. Word has length 328 [2022-11-18 20:55:04,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:04,804 INFO L495 AbstractCegarLoop]: Abstraction has 13129 states and 20370 transitions. [2022-11-18 20:55:04,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-18 20:55:04,805 INFO L276 IsEmpty]: Start isEmpty. Operand 13129 states and 20370 transitions. [2022-11-18 20:55:04,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-11-18 20:55:04,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:04,817 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 20:55:04,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:05,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:05,036 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:55:05,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:05,036 INFO L85 PathProgramCache]: Analyzing trace with hash 536356090, now seen corresponding path program 1 times [2022-11-18 20:55:05,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:05,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265986521] [2022-11-18 20:55:05,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:05,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:05,310 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:55:05,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1779472099] [2022-11-18 20:55:05,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:05,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:05,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:05,312 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:05,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:55:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:07,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 5994 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:55:07,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:07,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-18 20:55:07,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:07,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:07,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265986521] [2022-11-18 20:55:07,635 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:55:07,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779472099] [2022-11-18 20:55:07,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779472099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:07,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:07,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:55:07,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172814934] [2022-11-18 20:55:07,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:07,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:55:07,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:07,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:55:07,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:55:07,637 INFO L87 Difference]: Start difference. First operand 13129 states and 20370 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-18 20:55:09,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:09,381 INFO L93 Difference]: Finished difference Result 39379 states and 61126 transitions. [2022-11-18 20:55:09,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:55:09,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 326 [2022-11-18 20:55:09,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:09,559 INFO L225 Difference]: With dead ends: 39379 [2022-11-18 20:55:09,559 INFO L226 Difference]: Without dead ends: 26290 [2022-11-18 20:55:09,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:55:09,649 INFO L413 NwaCegarLoop]: 7108 mSDtfsCounter, 5501 mSDsluCounter, 19703 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5505 SdHoareTripleChecker+Valid, 26811 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:09,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5505 Valid, 26811 Invalid, 41 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:55:09,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26290 states. [2022-11-18 20:55:12,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26290 to 26251. [2022-11-18 20:55:12,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26251 states, 14615 states have (on average 1.32514539856312) internal successors, (19367), 15083 states have internal predecessors, (19367), 10647 states have call successors, (10647), 981 states have call predecessors, (10647), 988 states have return successors, (10738), 10434 states have call predecessors, (10738), 10646 states have call successors, (10738) [2022-11-18 20:55:12,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26251 states to 26251 states and 40752 transitions. [2022-11-18 20:55:12,509 INFO L78 Accepts]: Start accepts. Automaton has 26251 states and 40752 transitions. Word has length 326 [2022-11-18 20:55:12,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:12,513 INFO L495 AbstractCegarLoop]: Abstraction has 26251 states and 40752 transitions. [2022-11-18 20:55:12,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-18 20:55:12,514 INFO L276 IsEmpty]: Start isEmpty. Operand 26251 states and 40752 transitions. [2022-11-18 20:55:12,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-11-18 20:55:12,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:12,523 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 20:55:12,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:12,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:12,742 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:55:12,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:12,743 INFO L85 PathProgramCache]: Analyzing trace with hash -653368430, now seen corresponding path program 1 times [2022-11-18 20:55:12,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:12,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970798694] [2022-11-18 20:55:12,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:12,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:12,960 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:55:12,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1868481186] [2022-11-18 20:55:12,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:12,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:12,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:12,962 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:12,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:55:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:14,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 5992 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:55:14,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:15,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-18 20:55:15,470 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:15,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:15,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970798694] [2022-11-18 20:55:15,471 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:55:15,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868481186] [2022-11-18 20:55:15,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868481186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:15,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:15,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:55:15,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60305754] [2022-11-18 20:55:15,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:15,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:55:15,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:15,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:55:15,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:55:15,473 INFO L87 Difference]: Start difference. First operand 26251 states and 40752 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-18 20:55:18,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:18,641 INFO L93 Difference]: Finished difference Result 78841 states and 122444 transitions. [2022-11-18 20:55:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:55:18,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 325 [2022-11-18 20:55:18,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:19,026 INFO L225 Difference]: With dead ends: 78841 [2022-11-18 20:55:19,026 INFO L226 Difference]: Without dead ends: 52630 [2022-11-18 20:55:19,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:55:19,370 INFO L413 NwaCegarLoop]: 8057 mSDtfsCounter, 5511 mSDsluCounter, 21614 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5515 SdHoareTripleChecker+Valid, 29671 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:19,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5515 Valid, 29671 Invalid, 45 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:55:19,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52630 states. [2022-11-18 20:55:23,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52630 to 52419. [2022-11-18 20:55:23,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52419 states, 29175 states have (on average 1.325758354755784) internal successors, (38679), 30135 states have internal predecessors, (38679), 21267 states have call successors, (21267), 1961 states have call predecessors, (21267), 1976 states have return successors, (21538), 20818 states have call predecessors, (21538), 21266 states have call successors, (21538) [2022-11-18 20:55:24,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52419 states to 52419 states and 81484 transitions. [2022-11-18 20:55:24,393 INFO L78 Accepts]: Start accepts. Automaton has 52419 states and 81484 transitions. Word has length 325 [2022-11-18 20:55:24,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:24,394 INFO L495 AbstractCegarLoop]: Abstraction has 52419 states and 81484 transitions. [2022-11-18 20:55:24,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-18 20:55:24,395 INFO L276 IsEmpty]: Start isEmpty. Operand 52419 states and 81484 transitions. [2022-11-18 20:55:24,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-11-18 20:55:24,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:24,409 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 20:55:24,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:24,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:24,628 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:55:24,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:24,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1423443993, now seen corresponding path program 1 times [2022-11-18 20:55:24,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:24,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965343831] [2022-11-18 20:55:24,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:24,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:25,083 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:55:25,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1782940726] [2022-11-18 20:55:25,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:25,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:25,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:25,085 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:25,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:55:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:27,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 5984 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:55:27,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:27,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-18 20:55:27,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:27,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:27,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965343831] [2022-11-18 20:55:27,570 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:55:27,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782940726] [2022-11-18 20:55:27,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782940726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:27,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:27,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:55:27,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896245776] [2022-11-18 20:55:27,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:27,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:55:27,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:27,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:55:27,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:55:27,573 INFO L87 Difference]: Start difference. First operand 52419 states and 81484 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-18 20:55:30,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:30,402 INFO L93 Difference]: Finished difference Result 104990 states and 163182 transitions. [2022-11-18 20:55:30,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:55:30,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 331 [2022-11-18 20:55:30,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:30,781 INFO L225 Difference]: With dead ends: 104990 [2022-11-18 20:55:30,782 INFO L226 Difference]: Without dead ends: 52611 [2022-11-18 20:55:31,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:55:31,321 INFO L413 NwaCegarLoop]: 5572 mSDtfsCounter, 5493 mSDsluCounter, 11123 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5497 SdHoareTripleChecker+Valid, 16695 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:31,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5497 Valid, 16695 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:55:31,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52611 states. [2022-11-18 20:55:35,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52611 to 52563. [2022-11-18 20:55:35,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52563 states, 29303 states have (on average 1.3254274306385012) internal successors, (38839), 30263 states have internal predecessors, (38839), 21267 states have call successors, (21267), 1977 states have call predecessors, (21267), 1992 states have return successors, (21538), 20818 states have call predecessors, (21538), 21266 states have call successors, (21538) [2022-11-18 20:55:35,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52563 states to 52563 states and 81644 transitions. [2022-11-18 20:55:35,682 INFO L78 Accepts]: Start accepts. Automaton has 52563 states and 81644 transitions. Word has length 331 [2022-11-18 20:55:35,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:35,683 INFO L495 AbstractCegarLoop]: Abstraction has 52563 states and 81644 transitions. [2022-11-18 20:55:35,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-18 20:55:35,683 INFO L276 IsEmpty]: Start isEmpty. Operand 52563 states and 81644 transitions. [2022-11-18 20:55:35,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-11-18 20:55:35,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:35,706 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-18 20:55:35,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:35,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:35,920 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:55:35,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:35,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1188874219, now seen corresponding path program 1 times [2022-11-18 20:55:35,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:35,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742215011] [2022-11-18 20:55:35,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:35,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:36,140 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:55:36,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008015668] [2022-11-18 20:55:36,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:36,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:36,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:36,144 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:36,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b34d0f2-557f-49df-9db0-0feea8e37151/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:55:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:38,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 5996 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:55:38,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:38,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-18 20:55:38,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:38,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:38,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742215011] [2022-11-18 20:55:38,963 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:55:38,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008015668] [2022-11-18 20:55:38,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008015668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:38,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:38,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:55:38,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514965433] [2022-11-18 20:55:38,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:38,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:55:38,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:38,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:55:38,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:55:38,966 INFO L87 Difference]: Start difference. First operand 52563 states and 81644 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-18 20:55:44,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:44,375 INFO L93 Difference]: Finished difference Result 157861 states and 245368 transitions. [2022-11-18 20:55:44,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:55:44,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 327 [2022-11-18 20:55:44,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:45,489 INFO L225 Difference]: With dead ends: 157861 [2022-11-18 20:55:45,489 INFO L226 Difference]: Without dead ends: 105338 [2022-11-18 20:55:45,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:55:45,798 INFO L413 NwaCegarLoop]: 6997 mSDtfsCounter, 5500 mSDsluCounter, 19481 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5504 SdHoareTripleChecker+Valid, 26478 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:45,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5504 Valid, 26478 Invalid, 41 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:55:45,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105338 states.