./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 5e519f3a 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_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/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_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc --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-5e519f3 [2022-11-02 21:06:10,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:06:10,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:06:10,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:06:10,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:06:10,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:06:10,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:06:10,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:06:10,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:06:10,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:06:10,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:06:10,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:06:10,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:06:10,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:06:10,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:06:10,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:06:10,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:06:10,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:06:10,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:06:10,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:06:10,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:06:10,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:06:10,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:06:10,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:06:10,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:06:10,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:06:10,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:06:10,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:06:10,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:06:10,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:06:10,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:06:10,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:06:10,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:06:10,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:06:10,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:06:10,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:06:10,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:06:10,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:06:10,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:06:10,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:06:10,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:06:10,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 21:06:10,436 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:06:10,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:06:10,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:06:10,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:06:10,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:06:10,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:06:10,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:06:10,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:06:10,441 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:06:10,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:06:10,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:06:10,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:06:10,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:06:10,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:06:10,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:06:10,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:06:10,444 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:06:10,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:06:10,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:06:10,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:06:10,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:06:10,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:06:10,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:06:10,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:06:10,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:06:10,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:06:10,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:06:10,448 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:06:10,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:06:10,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:06:10,449 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_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 [2022-11-02 21:06:10,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:06:10,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:06:10,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:06:10,823 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:06:10,823 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:06:10,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/../../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 [2022-11-02 21:06:10,899 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/data/542a06e24/3e8b0a6f4fcf4dc9bf40888e2fb24e8d/FLAG08eb0e9ce [2022-11-02 21:06:12,032 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:06:12,032 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/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 [2022-11-02 21:06:12,106 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/data/542a06e24/3e8b0a6f4fcf4dc9bf40888e2fb24e8d/FLAG08eb0e9ce [2022-11-02 21:06:12,293 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/data/542a06e24/3e8b0a6f4fcf4dc9bf40888e2fb24e8d [2022-11-02 21:06:12,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:06:12,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:06:12,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:06:12,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:06:12,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:06:12,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:06:12" (1/1) ... [2022-11-02 21:06:12,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b970a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:12, skipping insertion in model container [2022-11-02 21:06:12,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:06:12" (1/1) ... [2022-11-02 21:06:12,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:06:12,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:06:16,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/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] [2022-11-02 21:06:16,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:06:16,702 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:06:17,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/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] [2022-11-02 21:06:17,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:06:17,595 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:06:17,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17 WrapperNode [2022-11-02 21:06:17,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:06:17,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:06:17,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:06:17,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:06:17,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:17,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:18,185 INFO L138 Inliner]: procedures = 440, calls = 4514, calls flagged for inlining = 181, calls inlined = 178, statements flattened = 8251 [2022-11-02 21:06:18,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:06:18,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:06:18,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:06:18,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:06:18,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:18,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:18,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:18,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:18,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:18,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:18,697 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:18,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:18,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:06:18,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:06:18,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:06:18,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:06:18,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (1/1) ... [2022-11-02 21:06:18,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:06:18,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:18,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:06:18,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:06:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-11-02 21:06:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-11-02 21:06:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-02 21:06:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-02 21:06:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2022-11-02 21:06:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2022-11-02 21:06:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-11-02 21:06:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-11-02 21:06:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-02 21:06:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-02 21:06:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-02 21:06:18,888 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-02 21:06:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-02 21:06:18,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-02 21:06:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 21:06:18,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 21:06:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2022-11-02 21:06:18,889 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2022-11-02 21:06:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2022-11-02 21:06:18,890 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2022-11-02 21:06:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_writereg [2022-11-02 21:06:18,890 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_writereg [2022-11-02 21:06:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-02 21:06:18,890 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-02 21:06:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_generic_frame_duration [2022-11-02 21:06:18,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_generic_frame_duration [2022-11-02 21:06:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-02 21:06:18,891 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-02 21:06:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-02 21:06:18,891 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-02 21:06:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-11-02 21:06:18,892 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-11-02 21:06:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-02 21:06:18,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-02 21:06:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-02 21:06:18,892 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-02 21:06:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2022-11-02 21:06:18,893 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2022-11-02 21:06:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2022-11-02 21:06:18,893 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2022-11-02 21:06:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-11-02 21:06:18,893 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-11-02 21:06:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2022-11-02 21:06:18,894 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2022-11-02 21:06:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2022-11-02 21:06:18,894 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2022-11-02 21:06:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2022-11-02 21:06:18,895 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2022-11-02 21:06:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-02 21:06:18,895 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-02 21:06:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-02 21:06:18,895 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-02 21:06:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:06:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-11-02 21:06:18,896 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-11-02 21:06:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-11-02 21:06:18,896 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-11-02 21:06:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-02 21:06:18,897 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-02 21:06:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2022-11-02 21:06:18,897 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2022-11-02 21:06:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 21:06:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-11-02 21:06:18,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-11-02 21:06:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-02 21:06:18,898 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-02 21:06:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-02 21:06:18,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-02 21:06:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2022-11-02 21:06:18,898 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2022-11-02 21:06:18,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 21:06:18,899 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-11-02 21:06:18,899 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-11-02 21:06:18,899 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2022-11-02 21:06:18,899 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2022-11-02 21:06:18,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:06:18,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_10 [2022-11-02 21:06:18,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_10 [2022-11-02 21:06:18,900 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-02 21:06:18,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-02 21:06:18,900 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2022-11-02 21:06:18,901 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2022-11-02 21:06:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 21:06:18,901 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 21:06:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-11-02 21:06:18,901 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-11-02 21:06:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-02 21:06:18,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-02 21:06:18,902 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-02 21:06:18,902 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-02 21:06:18,902 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2022-11-02 21:06:18,902 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2022-11-02 21:06:18,902 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2022-11-02 21:06:18,903 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2022-11-02 21:06:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-02 21:06:18,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-02 21:06:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-02 21:06:18,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-02 21:06:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-11-02 21:06:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-11-02 21:06:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-11-02 21:06:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-11-02 21:06:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2022-11-02 21:06:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2022-11-02 21:06:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-02 21:06:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-02 21:06:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-02 21:06:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-02 21:06:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:06:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:06:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-02 21:06:18,906 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-02 21:06:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-11-02 21:06:18,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-11-02 21:06:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-11-02 21:06:18,906 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-11-02 21:06:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-02 21:06:18,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-02 21:06:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 21:06:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 21:06:18,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 21:06:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_10 [2022-11-02 21:06:18,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_10 [2022-11-02 21:06:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-11-02 21:06:18,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-11-02 21:06:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_init [2022-11-02 21:06:18,908 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_init [2022-11-02 21:06:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2022-11-02 21:06:18,909 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2022-11-02 21:06:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2022-11-02 21:06:18,909 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2022-11-02 21:06:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam2 [2022-11-02 21:06:18,909 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam2 [2022-11-02 21:06:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-11-02 21:06:18,910 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-11-02 21:06:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2022-11-02 21:06:18,910 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2022-11-02 21:06:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2022-11-02 21:06:18,910 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2022-11-02 21:06:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_basic_rates [2022-11-02 21:06:18,911 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_basic_rates [2022-11-02 21:06:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-02 21:06:18,911 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-02 21:06:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:06:18,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:06:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-02 21:06:18,911 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-02 21:06:18,912 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2022-11-02 21:06:18,912 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2022-11-02 21:06:18,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 21:06:18,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 21:06:18,912 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_tx [2022-11-02 21:06:18,912 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_tx [2022-11-02 21:06:18,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 21:06:18,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 21:06:18,913 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2022-11-02 21:06:18,913 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2022-11-02 21:06:18,913 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-02 21:06:18,913 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-02 21:06:18,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_5 [2022-11-02 21:06:18,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_5 [2022-11-02 21:06:18,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_4 [2022-11-02 21:06:18,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_4 [2022-11-02 21:06:18,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_9 [2022-11-02 21:06:18,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_9 [2022-11-02 21:06:18,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2022-11-02 21:06:18,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2022-11-02 21:06:18,915 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-11-02 21:06:18,915 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-11-02 21:06:18,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_7 [2022-11-02 21:06:18,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_7 [2022-11-02 21:06:18,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-11-02 21:06:18,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-11-02 21:06:18,916 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-11-02 21:06:18,916 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-11-02 21:06:18,916 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2022-11-02 21:06:18,916 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2022-11-02 21:06:18,916 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_set_channel [2022-11-02 21:06:18,917 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_set_channel [2022-11-02 21:06:18,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 21:06:18,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 21:06:18,917 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-02 21:06:18,917 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-02 21:06:18,917 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-02 21:06:18,918 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-02 21:06:18,918 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2022-11-02 21:06:18,918 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2022-11-02 21:06:18,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 21:06:18,918 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 21:06:18,918 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-11-02 21:06:18,919 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-11-02 21:06:18,919 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 21:06:18,919 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 21:06:18,919 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_int_disable [2022-11-02 21:06:18,919 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_int_disable [2022-11-02 21:06:18,919 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-11-02 21:06:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-11-02 21:06:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:06:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2022-11-02 21:06:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2022-11-02 21:06:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 21:06:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_stop [2022-11-02 21:06:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_stop [2022-11-02 21:06:18,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-02 21:06:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-02 21:06:18,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 21:06:18,921 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_init [2022-11-02 21:06:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_init [2022-11-02 21:06:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-02 21:06:18,922 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-02 21:06:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-02 21:06:18,922 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-02 21:06:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2022-11-02 21:06:18,922 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2022-11-02 21:06:18,923 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2022-11-02 21:06:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2022-11-02 21:06:18,923 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2022-11-02 21:06:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2022-11-02 21:06:18,923 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_readreg [2022-11-02 21:06:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_readreg [2022-11-02 21:06:18,923 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_beacon_work [2022-11-02 21:06:18,924 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_beacon_work [2022-11-02 21:06:18,924 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2022-11-02 21:06:18,924 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2022-11-02 21:06:18,924 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-02 21:06:18,924 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-02 21:06:18,924 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-11-02 21:06:18,925 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-11-02 21:06:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_rx [2022-11-02 21:06:18,925 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_rx [2022-11-02 21:06:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2022-11-02 21:06:18,925 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2022-11-02 21:06:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:06:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-11-02 21:06:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-11-02 21:06:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-02 21:06:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-02 21:06:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 21:06:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 21:06:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2022-11-02 21:06:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2022-11-02 21:06:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2022-11-02 21:06:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2022-11-02 21:06:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_conf_ac_parm [2022-11-02 21:06:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_conf_ac_parm [2022-11-02 21:06:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-02 21:06:18,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-02 21:06:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-02 21:06:18,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-02 21:06:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-02 21:06:18,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-02 21:06:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_stop [2022-11-02 21:06:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_stop [2022-11-02 21:06:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-02 21:06:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-02 21:06:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2022-11-02 21:06:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2022-11-02 21:06:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-02 21:06:18,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-02 21:06:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-02 21:06:18,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-02 21:06:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-11-02 21:06:18,931 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-11-02 21:06:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2022-11-02 21:06:18,931 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2022-11-02 21:06:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:06:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2022-11-02 21:06:18,931 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2022-11-02 21:06:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_three_wire_io [2022-11-02 21:06:18,932 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_three_wire_io [2022-11-02 21:06:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2022-11-02 21:06:18,932 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2022-11-02 21:06:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-11-02 21:06:18,932 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-11-02 21:06:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-11-02 21:06:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-11-02 21:06:20,461 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:06:20,466 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:06:21,046 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 21:06:31,589 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:06:31,632 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:06:31,632 INFO L300 CfgBuilder]: Removed 78 assume(true) statements. [2022-11-02 21:06:31,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:06:31 BoogieIcfgContainer [2022-11-02 21:06:31,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:06:31,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:06:31,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:06:31,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:06:31,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:06:12" (1/3) ... [2022-11-02 21:06:31,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b3e6e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:06:31, skipping insertion in model container [2022-11-02 21:06:31,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:17" (2/3) ... [2022-11-02 21:06:31,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b3e6e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:06:31, skipping insertion in model container [2022-11-02 21:06:31,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:06:31" (3/3) ... [2022-11-02 21:06:31,652 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 [2022-11-02 21:06:31,677 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:06:31,677 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:06:31,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:06:31,968 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;@434b8521, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:06:31,969 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:06:31,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 3746 states, 2156 states have (on average 1.312152133580705) internal successors, (2829), 2311 states have internal predecessors, (2829), 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) [2022-11-02 21:06:32,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-11-02 21:06:32,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:32,034 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, 1, 1] [2022-11-02 21:06:32,035 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:32,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:32,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1156017786, now seen corresponding path program 1 times [2022-11-02 21:06:32,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:32,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550486688] [2022-11-02 21:06:32,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:32,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:06:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 21:06:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 21:06:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 21:06:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 21:06:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-02 21:06:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-02 21:06:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-02 21:06:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-02 21:06:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-02 21:06:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-02 21:06:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-02 21:06:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:34,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:34,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-02 21:06:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:34,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:34,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-02 21:06:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:34,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:34,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-02 21:06:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:34,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:34,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-11-02 21:06:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:34,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:34,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2022-11-02 21:06:34,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:34,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550486688] [2022-11-02 21:06:34,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550486688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:34,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:34,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:06:34,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415309505] [2022-11-02 21:06:34,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:34,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:06:34,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:34,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:06:34,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:06:34,261 INFO L87 Difference]: Start difference. First operand has 3746 states, 2156 states have (on average 1.312152133580705) internal successors, (2829), 2311 states have internal predecessors, (2829), 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 10.2) internal successors, (51), 2 states have internal predecessors, (51), 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) [2022-11-02 21:06:39,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:06:42,432 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 [] [2022-11-02 21:06:56,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:56,743 INFO L93 Difference]: Finished difference Result 7459 states and 11796 transitions. [2022-11-02 21:06:56,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:06:56,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 2 states have internal predecessors, (51), 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 279 [2022-11-02 21:06:56,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:56,821 INFO L225 Difference]: With dead ends: 7459 [2022-11-02 21:06:56,821 INFO L226 Difference]: Without dead ends: 3690 [2022-11-02 21:06:56,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:06:56,862 INFO L413 NwaCegarLoop]: 4326 mSDtfsCounter, 2210 mSDsluCounter, 4102 mSDsCounter, 0 mSdLazyCounter, 3787 mSolverCounterSat, 4642 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 8428 SdHoareTripleChecker+Invalid, 8430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4642 IncrementalHoareTripleChecker+Valid, 3787 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:56,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2221 Valid, 8428 Invalid, 8430 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4642 Valid, 3787 Invalid, 1 Unknown, 0 Unchecked, 21.5s Time] [2022-11-02 21:06:56,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3690 states. [2022-11-02 21:06:57,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3690 to 3484. [2022-11-02 21:06:57,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3484 states, 1911 states have (on average 1.3003663003663004) internal successors, (2485), 1980 states have internal predecessors, (2485), 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) [2022-11-02 21:06:57,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3484 states to 3484 states and 5372 transitions. [2022-11-02 21:06:57,400 INFO L78 Accepts]: Start accepts. Automaton has 3484 states and 5372 transitions. Word has length 279 [2022-11-02 21:06:57,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:57,402 INFO L495 AbstractCegarLoop]: Abstraction has 3484 states and 5372 transitions. [2022-11-02 21:06:57,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 2 states have internal predecessors, (51), 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) [2022-11-02 21:06:57,403 INFO L276 IsEmpty]: Start isEmpty. Operand 3484 states and 5372 transitions. [2022-11-02 21:06:57,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-11-02 21:06:57,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:57,418 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, 1, 1] [2022-11-02 21:06:57,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:06:57,419 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:57,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:57,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1870882658, now seen corresponding path program 1 times [2022-11-02 21:06:57,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:57,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001690095] [2022-11-02 21:06:57,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:57,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:06:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 21:06:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 21:06:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 21:06:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 21:06:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-02 21:06:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-02 21:06:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-02 21:06:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-02 21:06:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-02 21:06:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 21:06:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-02 21:06:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-02 21:06:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-02 21:06:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-02 21:06:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-02 21:06:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-11-02 21:06:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2022-11-02 21:06:58,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:58,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001690095] [2022-11-02 21:06:58,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001690095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:58,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:58,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:06:58,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417302840] [2022-11-02 21:06:58,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:58,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:06:58,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:58,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:06:58,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:06:58,957 INFO L87 Difference]: Start difference. First operand 3484 states and 5372 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-11-02 21:07:00,919 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 [] [2022-11-02 21:07:02,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:07:04,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:07:06,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:07:13,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:07:19,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:07:24,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:07:40,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:07:40,624 INFO L93 Difference]: Finished difference Result 10162 states and 15752 transitions. [2022-11-02 21:07:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:07:40,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 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 279 [2022-11-02 21:07:40,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:07:40,681 INFO L225 Difference]: With dead ends: 10162 [2022-11-02 21:07:40,681 INFO L226 Difference]: Without dead ends: 6718 [2022-11-02 21:07:40,707 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 [2022-11-02 21:07:40,708 INFO L413 NwaCegarLoop]: 5735 mSDtfsCounter, 6026 mSDsluCounter, 7653 mSDsCounter, 0 mSdLazyCounter, 9347 mSolverCounterSat, 9727 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6409 SdHoareTripleChecker+Valid, 13388 SdHoareTripleChecker+Invalid, 19076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9727 IncrementalHoareTripleChecker+Valid, 9347 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:07:40,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6409 Valid, 13388 Invalid, 19076 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9727 Valid, 9347 Invalid, 2 Unknown, 0 Unchecked, 40.5s Time] [2022-11-02 21:07:40,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6718 states. [2022-11-02 21:07:41,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6718 to 6356. [2022-11-02 21:07:41,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6356 states, 3434 states have (on average 1.2999417588817705) internal successors, (4464), 3551 states have internal predecessors, (4464), 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) [2022-11-02 21:07:41,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6356 states to 6356 states and 9824 transitions. [2022-11-02 21:07:41,370 INFO L78 Accepts]: Start accepts. Automaton has 6356 states and 9824 transitions. Word has length 279 [2022-11-02 21:07:41,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:07:41,373 INFO L495 AbstractCegarLoop]: Abstraction has 6356 states and 9824 transitions. [2022-11-02 21:07:41,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-11-02 21:07:41,374 INFO L276 IsEmpty]: Start isEmpty. Operand 6356 states and 9824 transitions. [2022-11-02 21:07:41,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-11-02 21:07:41,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:07:41,390 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] [2022-11-02 21:07:41,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:07:41,391 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:07:41,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:41,391 INFO L85 PathProgramCache]: Analyzing trace with hash -724855501, now seen corresponding path program 1 times [2022-11-02 21:07:41,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:41,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719154644] [2022-11-02 21:07:41,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:41,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:41,607 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 21:07:41,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [603201368] [2022-11-02 21:07:41,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:41,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:41,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:07:41,613 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:07:41,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:07:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:43,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 5905 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:07:43,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:07:44,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-02 21:07:44,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:07:44,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:44,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719154644] [2022-11-02 21:07:44,115 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 21:07:44,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603201368] [2022-11-02 21:07:44,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603201368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:44,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:44,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:07:44,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767207003] [2022-11-02 21:07:44,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:44,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:07:44,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:44,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:07:44,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:07:44,119 INFO L87 Difference]: Start difference. First operand 6356 states and 9824 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 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) [2022-11-02 21:07:44,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:07:44,633 INFO L93 Difference]: Finished difference Result 12696 states and 19624 transitions. [2022-11-02 21:07:44,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:07:44,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 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 330 [2022-11-02 21:07:44,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:07:44,685 INFO L225 Difference]: With dead ends: 12696 [2022-11-02 21:07:44,685 INFO L226 Difference]: Without dead ends: 6380 [2022-11-02 21:07:44,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:07:44,733 INFO L413 NwaCegarLoop]: 5375 mSDtfsCounter, 5297 mSDsluCounter, 10729 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5301 SdHoareTripleChecker+Valid, 16104 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 [2022-11-02 21:07:44,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5301 Valid, 16104 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:07:44,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6380 states. [2022-11-02 21:07:45,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6380 to 6374. [2022-11-02 21:07:45,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6374 states, 3450 states have (on average 1.2997101449275363) internal successors, (4484), 3567 states have internal predecessors, (4484), 2676 states have call successors, (2676), 246 states have call predecessors, (2676), 247 states have return successors, (2684), 2622 states have call predecessors, (2684), 2675 states have call successors, (2684) [2022-11-02 21:07:45,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6374 states to 6374 states and 9844 transitions. [2022-11-02 21:07:45,330 INFO L78 Accepts]: Start accepts. Automaton has 6374 states and 9844 transitions. Word has length 330 [2022-11-02 21:07:45,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:07:45,332 INFO L495 AbstractCegarLoop]: Abstraction has 6374 states and 9844 transitions. [2022-11-02 21:07:45,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 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) [2022-11-02 21:07:45,333 INFO L276 IsEmpty]: Start isEmpty. Operand 6374 states and 9844 transitions. [2022-11-02 21:07:45,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-11-02 21:07:45,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:07:45,343 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] [2022-11-02 21:07:45,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:07:45,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:45,557 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:07:45,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:45,557 INFO L85 PathProgramCache]: Analyzing trace with hash -36668360, now seen corresponding path program 1 times [2022-11-02 21:07:45,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:45,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572725879] [2022-11-02 21:07:45,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:45,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:45,855 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 21:07:45,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1326814927] [2022-11-02 21:07:45,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:45,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:45,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:07:45,857 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:07:45,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 21:07:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:47,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 5919 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:07:47,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:07:48,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-02 21:07:48,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:07:48,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:48,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572725879] [2022-11-02 21:07:48,193 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 21:07:48,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326814927] [2022-11-02 21:07:48,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326814927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:48,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:48,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:07:48,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617022714] [2022-11-02 21:07:48,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:48,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:07:48,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:48,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:07:48,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:07:48,197 INFO L87 Difference]: Start difference. First operand 6374 states and 9844 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) [2022-11-02 21:07:49,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:07:49,116 INFO L93 Difference]: Finished difference Result 19072 states and 29474 transitions. [2022-11-02 21:07:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:07:49,116 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 [2022-11-02 21:07:49,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:07:49,224 INFO L225 Difference]: With dead ends: 19072 [2022-11-02 21:07:49,224 INFO L226 Difference]: Without dead ends: 12738 [2022-11-02 21:07:49,268 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 [2022-11-02 21:07:49,269 INFO L413 NwaCegarLoop]: 6850 mSDtfsCounter, 5303 mSDsluCounter, 18990 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5307 SdHoareTripleChecker+Valid, 25840 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 [2022-11-02 21:07:49,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5307 Valid, 25840 Invalid, 41 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:07:49,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12738 states. [2022-11-02 21:07:50,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12738 to 12723. [2022-11-02 21:07:50,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12723 states, 6893 states have (on average 1.3005948063252575) internal successors, (8965), 7127 states have internal predecessors, (8965), 5333 states have call successors, (5333), 493 states have call predecessors, (5333), 496 states have return successors, (5362), 5226 states have call predecessors, (5362), 5332 states have call successors, (5362) [2022-11-02 21:07:50,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12723 states to 12723 states and 19660 transitions. [2022-11-02 21:07:50,551 INFO L78 Accepts]: Start accepts. Automaton has 12723 states and 19660 transitions. Word has length 327 [2022-11-02 21:07:50,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:07:50,555 INFO L495 AbstractCegarLoop]: Abstraction has 12723 states and 19660 transitions. [2022-11-02 21:07:50,556 INFO L496 AbstractCegarLoop]: INTERPOLANT 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) [2022-11-02 21:07:50,556 INFO L276 IsEmpty]: Start isEmpty. Operand 12723 states and 19660 transitions. [2022-11-02 21:07:50,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-02 21:07:50,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:07:50,566 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] [2022-11-02 21:07:50,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:07:50,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:50,793 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:07:50,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:50,794 INFO L85 PathProgramCache]: Analyzing trace with hash 635654646, now seen corresponding path program 1 times [2022-11-02 21:07:50,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:50,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050130516] [2022-11-02 21:07:50,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:50,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:50,982 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 21:07:50,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617724289] [2022-11-02 21:07:50,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:50,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:50,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:07:50,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:07:51,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 21:07:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:52,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 5901 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:07:52,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:07:53,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-02 21:07:53,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:07:53,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:53,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050130516] [2022-11-02 21:07:53,147 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 21:07:53,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617724289] [2022-11-02 21:07:53,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617724289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:53,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:53,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:07:53,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546857197] [2022-11-02 21:07:53,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:53,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:07:53,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:53,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:07:53,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:07:53,150 INFO L87 Difference]: Start difference. First operand 12723 states and 19660 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) [2022-11-02 21:07:54,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:07:54,564 INFO L93 Difference]: Finished difference Result 38173 states and 58972 transitions. [2022-11-02 21:07:54,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:07:54,565 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 [2022-11-02 21:07:54,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:07:54,766 INFO L225 Difference]: With dead ends: 38173 [2022-11-02 21:07:54,766 INFO L226 Difference]: Without dead ends: 25490 [2022-11-02 21:07:54,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:07:54,861 INFO L413 NwaCegarLoop]: 7026 mSDtfsCounter, 5310 mSDsluCounter, 19358 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5314 SdHoareTripleChecker+Valid, 26384 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:07:54,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5314 Valid, 26384 Invalid, 27 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:07:54,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25490 states. [2022-11-02 21:07:57,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25490 to 25383. [2022-11-02 21:07:57,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25383 states, 13747 states have (on average 1.3014475885647778) internal successors, (17891), 14227 states have internal predecessors, (17891), 10643 states have call successors, (10643), 985 states have call predecessors, (10643), 992 states have return successors, (10702), 10418 states have call predecessors, (10702), 10642 states have call successors, (10702) [2022-11-02 21:07:57,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25383 states to 25383 states and 39236 transitions. [2022-11-02 21:07:57,708 INFO L78 Accepts]: Start accepts. Automaton has 25383 states and 39236 transitions. Word has length 328 [2022-11-02 21:07:57,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:07:57,709 INFO L495 AbstractCegarLoop]: Abstraction has 25383 states and 39236 transitions. [2022-11-02 21:07:57,710 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) [2022-11-02 21:07:57,710 INFO L276 IsEmpty]: Start isEmpty. Operand 25383 states and 39236 transitions. [2022-11-02 21:07:57,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-02 21:07:57,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:07:57,722 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] [2022-11-02 21:07:57,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:07:57,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:57,936 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:07:57,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:57,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1424307076, now seen corresponding path program 1 times [2022-11-02 21:07:57,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:57,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836538719] [2022-11-02 21:07:57,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:57,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:58,135 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 21:07:58,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227603930] [2022-11-02 21:07:58,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:58,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:58,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:07:58,137 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:07:58,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 21:07:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:59,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 5921 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:07:59,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:08:00,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-02 21:08:00,395 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:08:00,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:00,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836538719] [2022-11-02 21:08:00,395 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 21:08:00,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227603930] [2022-11-02 21:08:00,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227603930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:00,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:00,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:08:00,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937205252] [2022-11-02 21:08:00,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:00,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:08:00,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:00,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:08:00,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:08:00,399 INFO L87 Difference]: Start difference. First operand 25383 states and 39236 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) [2022-11-02 21:08:02,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:08:02,813 INFO L93 Difference]: Finished difference Result 76213 states and 117856 transitions. [2022-11-02 21:08:02,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:08:02,814 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 [2022-11-02 21:08:02,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:08:03,374 INFO L225 Difference]: With dead ends: 76213 [2022-11-02 21:08:03,374 INFO L226 Difference]: Without dead ends: 50870 [2022-11-02 21:08:03,560 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 [2022-11-02 21:08:03,562 INFO L413 NwaCegarLoop]: 6800 mSDtfsCounter, 5302 mSDsluCounter, 18890 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5306 SdHoareTripleChecker+Valid, 25690 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:08:03,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5306 Valid, 25690 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:08:03,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50870 states. [2022-11-02 21:08:07,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50870 to 50795. [2022-11-02 21:08:07,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50795 states, 27535 states have (on average 1.3015798075177047) internal successors, (35839), 28495 states have internal predecessors, (35839), 21267 states have call successors, (21267), 1977 states have call predecessors, (21267), 1992 states have return successors, (21450), 20818 states have call predecessors, (21450), 21266 states have call successors, (21450) [2022-11-02 21:08:07,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50795 states to 50795 states and 78556 transitions. [2022-11-02 21:08:08,399 INFO L78 Accepts]: Start accepts. Automaton has 50795 states and 78556 transitions. Word has length 328 [2022-11-02 21:08:08,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:08:08,409 INFO L495 AbstractCegarLoop]: Abstraction has 50795 states and 78556 transitions. [2022-11-02 21:08:08,409 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) [2022-11-02 21:08:08,410 INFO L276 IsEmpty]: Start isEmpty. Operand 50795 states and 78556 transitions. [2022-11-02 21:08:08,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-11-02 21:08:08,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:08:08,443 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] [2022-11-02 21:08:08,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:08,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:08:08,657 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:08:08,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:08,657 INFO L85 PathProgramCache]: Analyzing trace with hash -278816971, now seen corresponding path program 1 times [2022-11-02 21:08:08,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:08,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123855642] [2022-11-02 21:08:08,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:08,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:09,056 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 21:08:09,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1765118274] [2022-11-02 21:08:09,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:09,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:08:09,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:09,058 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:08:09,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 21:08:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:10,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 5915 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:08:10,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:08:11,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-02 21:08:11,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:08:11,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:11,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123855642] [2022-11-02 21:08:11,371 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 21:08:11,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765118274] [2022-11-02 21:08:11,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765118274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:11,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:11,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:08:11,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739906430] [2022-11-02 21:08:11,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:11,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:08:11,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:11,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:08:11,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:08:11,374 INFO L87 Difference]: Start difference. First operand 50795 states and 78556 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) [2022-11-02 21:08:16,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:08:16,350 INFO L93 Difference]: Finished difference Result 152641 states and 236160 transitions. [2022-11-02 21:08:16,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:08:16,351 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 [2022-11-02 21:08:16,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:08:17,114 INFO L225 Difference]: With dead ends: 152641 [2022-11-02 21:08:17,114 INFO L226 Difference]: Without dead ends: 101886 [2022-11-02 21:08:17,523 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 [2022-11-02 21:08:17,523 INFO L413 NwaCegarLoop]: 7314 mSDtfsCounter, 5314 mSDsluCounter, 19932 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5318 SdHoareTripleChecker+Valid, 27246 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:08:17,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5318 Valid, 27246 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:08:17,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101886 states. [2022-11-02 21:08:25,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101886 to 101467. [2022-11-02 21:08:25,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101467 states, 54983 states have (on average 1.3020569994361895) internal successors, (71591), 56951 states have internal predecessors, (71591), 42499 states have call successors, (42499), 3953 states have call predecessors, (42499), 3984 states have return successors, (43042), 41554 states have call predecessors, (43042), 42498 states have call successors, (43042) [2022-11-02 21:08:26,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101467 states to 101467 states and 157132 transitions. [2022-11-02 21:08:26,632 INFO L78 Accepts]: Start accepts. Automaton has 101467 states and 157132 transitions. Word has length 325 [2022-11-02 21:08:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:08:26,633 INFO L495 AbstractCegarLoop]: Abstraction has 101467 states and 157132 transitions. [2022-11-02 21:08:26,633 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) [2022-11-02 21:08:26,633 INFO L276 IsEmpty]: Start isEmpty. Operand 101467 states and 157132 transitions. [2022-11-02 21:08:26,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-11-02 21:08:26,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:08:26,652 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] [2022-11-02 21:08:26,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:26,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-02 21:08:26,881 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:08:26,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:26,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1883363039, now seen corresponding path program 1 times [2022-11-02 21:08:26,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:26,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518892934] [2022-11-02 21:08:26,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:26,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:27,086 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 21:08:27,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [96493882] [2022-11-02 21:08:27,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:27,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:08:27,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:27,088 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:08:27,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd1048b-329a-45dc-a085-03c193b2fea0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 21:08:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:29,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 5917 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:08:29,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:08:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-02 21:08:29,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:08:29,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:29,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518892934] [2022-11-02 21:08:29,801 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 21:08:29,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96493882] [2022-11-02 21:08:29,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96493882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:29,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:29,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:08:29,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621402205] [2022-11-02 21:08:29,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:29,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:08:29,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:29,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:08:29,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:08:29,804 INFO L87 Difference]: Start difference. First operand 101467 states and 157132 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)