./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-32_7a-drivers--thunderbolt--thunderbolt.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99145bdf-d183-44df-b077-011b44e7a7a7/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99145bdf-d183-44df-b077-011b44e7a7a7/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_99145bdf-d183-44df-b077-011b44e7a7a7/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99145bdf-d183-44df-b077-011b44e7a7a7/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99145bdf-d183-44df-b077-011b44e7a7a7/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_99145bdf-d183-44df-b077-011b44e7a7a7/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 d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 --- 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 20:07:26,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:07:26,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:07:26,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:07:26,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:07:26,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:07:26,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:07:26,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:07:26,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:07:26,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:07:26,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:07:26,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:07:26,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:07:26,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:07:26,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:07:26,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:07:26,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:07:26,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:07:26,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:07:26,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:07:26,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:07:26,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:07:26,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:07:26,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:07:26,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:07:26,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:07:26,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:07:26,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:07:26,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:07:26,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:07:26,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:07:26,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:07:26,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:07:26,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:07:26,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:07:26,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:07:26,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:07:26,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:07:26,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:07:26,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:07:26,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:07:26,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99145bdf-d183-44df-b077-011b44e7a7a7/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:07:26,869 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:07:26,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:07:26,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:07:26,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:07:26,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:07:26,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:07:26,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:07:26,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:07:26,873 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:07:26,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:07:26,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:07:26,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:07:26,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:07:26,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:07:26,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:07:26,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:07:26,875 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:07:26,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:07:26,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:07:26,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:07:26,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:07:26,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:07:26,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:07:26,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:07:26,878 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:07:26,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:07:26,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:07:26,879 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:07:26,879 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:07:26,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:07:26,880 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_99145bdf-d183-44df-b077-011b44e7a7a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99145bdf-d183-44df-b077-011b44e7a7a7/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 [2022-11-02 20:07:27,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:07:27,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:07:27,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:07:27,180 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:07:27,182 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:07:27,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99145bdf-d183-44df-b077-011b44e7a7a7/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-02 20:07:27,259 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99145bdf-d183-44df-b077-011b44e7a7a7/bin/uautomizer-Dbtcem3rbc/data/3516cf540/cc15f5fa539e4dc5a9235a9c71169d3a/FLAG48d5db729 [2022-11-02 20:07:28,248 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:07:28,250 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99145bdf-d183-44df-b077-011b44e7a7a7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-02 20:07:28,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99145bdf-d183-44df-b077-011b44e7a7a7/bin/uautomizer-Dbtcem3rbc/data/3516cf540/cc15f5fa539e4dc5a9235a9c71169d3a/FLAG48d5db729 [2022-11-02 20:07:28,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99145bdf-d183-44df-b077-011b44e7a7a7/bin/uautomizer-Dbtcem3rbc/data/3516cf540/cc15f5fa539e4dc5a9235a9c71169d3a [2022-11-02 20:07:28,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:07:28,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:07:28,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:07:28,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:07:28,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:07:28,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:07:28" (1/1) ... [2022-11-02 20:07:28,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef813f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:28, skipping insertion in model container [2022-11-02 20:07:28,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:07:28" (1/1) ... [2022-11-02 20:07:28,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:07:28,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:07:31,557 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_99145bdf-d183-44df-b077-011b44e7a7a7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-11-02 20:07:31,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:07:31,813 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:07:32,353 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_99145bdf-d183-44df-b077-011b44e7a7a7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-11-02 20:07:32,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:07:32,530 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:07:32,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:32 WrapperNode [2022-11-02 20:07:32,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:07:32,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:07:32,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:07:32,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:07:32,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:32" (1/1) ... [2022-11-02 20:07:32,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:32" (1/1) ... [2022-11-02 20:07:32,918 INFO L138 Inliner]: procedures = 480, calls = 3867, calls flagged for inlining = 166, calls inlined = 158, statements flattened = 7270 [2022-11-02 20:07:32,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:07:32,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:07:32,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:07:32,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:07:32,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:32" (1/1) ... [2022-11-02 20:07:32,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:32" (1/1) ... [2022-11-02 20:07:33,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:32" (1/1) ... [2022-11-02 20:07:33,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:32" (1/1) ... [2022-11-02 20:07:33,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:32" (1/1) ... [2022-11-02 20:07:33,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:32" (1/1) ... [2022-11-02 20:07:33,398 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:32" (1/1) ... [2022-11-02 20:07:33,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:32" (1/1) ... [2022-11-02 20:07:33,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:07:33,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:07:33,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:07:33,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:07:33,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:32" (1/1) ... [2022-11-02 20:07:33,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:07:33,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99145bdf-d183-44df-b077-011b44e7a7a7/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:07:33,523 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99145bdf-d183-44df-b077-011b44e7a7a7/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:07:33,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99145bdf-d183-44df-b077-011b44e7a7a7/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:07:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_ring [2022-11-02 20:07:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_ring [2022-11-02 20:07:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure thunderbolt_shutdown_and_free [2022-11-02 20:07:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure thunderbolt_shutdown_and_free [2022-11-02 20:07:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2022-11-02 20:07:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2022-11-02 20:07:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-02 20:07:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-02 20:07:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:07:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:07:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_get_drom_offset [2022-11-02 20:07:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_get_drom_offset [2022-11-02 20:07:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_free [2022-11-02 20:07:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_free [2022-11-02 20:07:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-02 20:07:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-02 20:07:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32options [2022-11-02 20:07:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32options [2022-11-02 20:07:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_active [2022-11-02 20:07:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_active [2022-11-02 20:07:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx_submit [2022-11-02 20:07:33,582 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx_submit [2022-11-02 20:07:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_disable_interrupts [2022-11-02 20:07:33,582 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_disable_interrupts [2022-11-02 20:07:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure get_route [2022-11-02 20:07:33,582 INFO L138 BoogieDeclarations]: Found implementation of procedure get_route [2022-11-02 20:07:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure check_header [2022-11-02 20:07:33,582 INFO L138 BoogieDeclarations]: Found implementation of procedure check_header [2022-11-02 20:07:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-02 20:07:33,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-02 20:07:33,583 INFO L130 BoogieDeclarations]: Found specification of procedure tb_activate_pcie_devices [2022-11-02 20:07:33,583 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_activate_pcie_devices [2022-11-02 20:07:33,583 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-02 20:07:33,583 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-02 20:07:33,583 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-02 20:07:33,583 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-02 20:07:33,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_ring [2022-11-02 20:07:33,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_ring [2022-11-02 20:07:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read_raw [2022-11-02 20:07:33,584 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read_raw [2022-11-02 20:07:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:07:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_long [2022-11-02 20:07:33,584 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_long [2022-11-02 20:07:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_set_unpplugged [2022-11-02 20:07:33,584 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_set_unpplugged [2022-11-02 20:07:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-02 20:07:33,585 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-02 20:07:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc8 [2022-11-02 20:07:33,585 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc8 [2022-11-02 20:07:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure ring_write_descriptors [2022-11-02 20:07:33,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_write_descriptors [2022-11-02 20:07:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 20:07:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:07:33,586 INFO L130 BoogieDeclarations]: Found specification of procedure tb_plug_events_active [2022-11-02 20:07:33,586 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_plug_events_active [2022-11-02 20:07:33,586 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-02 20:07:33,586 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-02 20:07:33,588 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_stop [2022-11-02 20:07:33,588 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_stop [2022-11-02 20:07:33,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb [2022-11-02 20:07:33,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb [2022-11-02 20:07:33,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:07:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_print_error [2022-11-02 20:07:33,589 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_print_error [2022-11-02 20:07:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 20:07:33,589 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 20:07:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_add_nfc_credits [2022-11-02 20:07:33,590 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_add_nfc_credits [2022-11-02 20:07:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-02 20:07:33,590 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-02 20:07:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-11-02 20:07:33,591 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-11-02 20:07:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_start [2022-11-02 20:07:33,591 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_start [2022-11-02 20:07:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure ring_start [2022-11-02 20:07:33,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_start [2022-11-02 20:07:33,592 INFO L130 BoogieDeclarations]: Found specification of procedure ring_stop [2022-11-02 20:07:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_stop [2022-11-02 20:07:33,592 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_write [2022-11-02 20:07:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_write [2022-11-02 20:07:33,592 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-02 20:07:33,593 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-02 20:07:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read [2022-11-02 20:07:33,593 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read [2022-11-02 20:07:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-02 20:07:33,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-02 20:07:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_free [2022-11-02 20:07:33,593 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_free [2022-11-02 20:07:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:07:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_index [2022-11-02 20:07:33,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_index [2022-11-02 20:07:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-02 20:07:33,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-02 20:07:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:07:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:07:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_basic [2022-11-02 20:07:33,596 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_basic [2022-11-02 20:07:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure tb_upstream_port [2022-11-02 20:07:33,596 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_upstream_port [2022-11-02 20:07:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure __ring_enqueue [2022-11-02 20:07:33,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __ring_enqueue [2022-11-02 20:07:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-02 20:07:33,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-02 20:07:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-02 20:07:33,597 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-02 20:07:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-02 20:07:33,598 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-02 20:07:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb [2022-11-02 20:07:33,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb [2022-11-02 20:07:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx [2022-11-02 20:07:33,598 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx [2022-11-02 20:07:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:07:33,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:07:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-02 20:07:33,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-02 20:07:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure ring_desc_base [2022-11-02 20:07:33,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_desc_base [2022-11-02 20:07:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_shutdown [2022-11-02 20:07:33,601 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_shutdown [2022-11-02 20:07:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-02 20:07:33,603 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-02 20:07:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_port [2022-11-02 20:07:33,604 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_port [2022-11-02 20:07:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_active [2022-11-02 20:07:33,605 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_active [2022-11-02 20:07:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 20:07:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 20:07:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 20:07:33,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 20:07:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_read_n [2022-11-02 20:07:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_read_n [2022-11-02 20:07:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_tx [2022-11-02 20:07:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_tx [2022-11-02 20:07:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_read [2022-11-02 20:07:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_read [2022-11-02 20:07:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure ring_work [2022-11-02 20:07:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_work [2022-11-02 20:07:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-11-02 20:07:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-11-02 20:07:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite16desc [2022-11-02 20:07:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite16desc [2022-11-02 20:07:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_free [2022-11-02 20:07:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_free [2022-11-02 20:07:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-02 20:07:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-02 20:07:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure tb_find_cap [2022-11-02 20:07:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_find_cap [2022-11-02 20:07:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-02 20:07:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-02 20:07:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:07:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:07:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_deactivate [2022-11-02 20:07:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_deactivate [2022-11-02 20:07:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_write [2022-11-02 20:07:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_write [2022-11-02 20:07:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-02 20:07:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-02 20:07:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:07:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:07:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_alloc [2022-11-02 20:07:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_alloc [2022-11-02 20:07:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_suspend_noirq [2022-11-02 20:07:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_suspend_noirq [2022-11-02 20:07:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_read [2022-11-02 20:07:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_read [2022-11-02 20:07:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-02 20:07:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-02 20:07:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_port_active [2022-11-02 20:07:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_port_active [2022-11-02 20:07:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_suspend [2022-11-02 20:07:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_suspend [2022-11-02 20:07:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_alloc [2022-11-02 20:07:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_alloc [2022-11-02 20:07:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-02 20:07:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-02 20:07:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure tb_drom_read_uid_only [2022-11-02 20:07:33,618 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_drom_read_uid_only [2022-11-02 20:07:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:07:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-02 20:07:33,618 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-02 20:07:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_write [2022-11-02 20:07:33,618 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_write [2022-11-02 20:07:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_activate [2022-11-02 20:07:33,618 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_activate [2022-11-02 20:07:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_interrupt_work [2022-11-02 20:07:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_interrupt_work [2022-11-02 20:07:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:07:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-02 20:07:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-02 20:07:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-11-02 20:07:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-11-02 20:07:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:07:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32desc [2022-11-02 20:07:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32desc [2022-11-02 20:07:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route_length [2022-11-02 20:07:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route_length [2022-11-02 20:07:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_resume_noirq [2022-11-02 20:07:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_resume_noirq [2022-11-02 20:07:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-02 20:07:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-02 20:07:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-02 20:07:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-02 20:07:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-02 20:07:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-02 20:07:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_alloc [2022-11-02 20:07:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_alloc [2022-11-02 20:07:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-02 20:07:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-02 20:07:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure ring_free [2022-11-02 20:07:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_free [2022-11-02 20:07:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-02 20:07:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-02 20:07:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite64desc [2022-11-02 20:07:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite64desc [2022-11-02 20:07:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deallocate_nfc [2022-11-02 20:07:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deallocate_nfc [2022-11-02 20:07:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_unplugged_children [2022-11-02 20:07:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_unplugged_children [2022-11-02 20:07:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc [2022-11-02 20:07:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc [2022-11-02 20:07:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-02 20:07:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-02 20:07:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_resume [2022-11-02 20:07:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_resume [2022-11-02 20:07:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure tb_wait_for_port [2022-11-02 20:07:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_wait_for_port [2022-11-02 20:07:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_switch [2022-11-02 20:07:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_switch [2022-11-02 20:07:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_restart [2022-11-02 20:07:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_restart [2022-11-02 20:07:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 20:07:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 20:07:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure check_config_address [2022-11-02 20:07:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure check_config_address [2022-11-02 20:07:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:07:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:07:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:07:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure __crc32c_le [2022-11-02 20:07:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __crc32c_le [2022-11-02 20:07:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kcalloc [2022-11-02 20:07:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kcalloc [2022-11-02 20:07:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_free [2022-11-02 20:07:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_free [2022-11-02 20:07:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_is_invalid [2022-11-02 20:07:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_is_invalid [2022-11-02 20:07:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure dev_driver_string [2022-11-02 20:07:33,631 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_driver_string [2022-11-02 20:07:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_transfer [2022-11-02 20:07:33,631 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_transfer [2022-11-02 20:07:33,632 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_init_path [2022-11-02 20:07:33,632 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_init_path [2022-11-02 20:07:33,632 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deactivate_hops [2022-11-02 20:07:33,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deactivate_hops [2022-11-02 20:07:33,632 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_free [2022-11-02 20:07:33,632 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_free [2022-11-02 20:07:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure tb_is_upstream_port [2022-11-02 20:07:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_is_upstream_port [2022-11-02 20:07:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure ring_alloc [2022-11-02 20:07:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_alloc [2022-11-02 20:07:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure make_header [2022-11-02 20:07:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure make_header [2022-11-02 20:07:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-02 20:07:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-02 20:07:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_invalid_tunnels [2022-11-02 20:07:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_invalid_tunnels [2022-11-02 20:07:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-11-02 20:07:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-11-02 20:07:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_read [2022-11-02 20:07:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_read [2022-11-02 20:07:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_deactivate [2022-11-02 20:07:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_deactivate [2022-11-02 20:07:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_out [2022-11-02 20:07:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_out [2022-11-02 20:07:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_write [2022-11-02 20:07:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_write [2022-11-02 20:07:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_nhi [2022-11-02 20:07:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_nhi [2022-11-02 20:07:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:07:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route [2022-11-02 20:07:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route [2022-11-02 20:07:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_nhi [2022-11-02 20:07:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_nhi [2022-11-02 20:07:35,015 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:07:35,024 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:07:35,672 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 20:07:58,619 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:07:58,660 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:07:58,661 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:07:58,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:07:58 BoogieIcfgContainer [2022-11-02 20:07:58,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:07:58,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:07:58,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:07:58,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:07:58,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:07:28" (1/3) ... [2022-11-02 20:07:58,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49879e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:07:58, skipping insertion in model container [2022-11-02 20:07:58,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:32" (2/3) ... [2022-11-02 20:07:58,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49879e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:07:58, skipping insertion in model container [2022-11-02 20:07:58,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:07:58" (3/3) ... [2022-11-02 20:07:58,680 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-02 20:07:58,699 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:07:58,700 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:07:58,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:07:58,846 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;@34e505eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:07:58,847 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:07:58,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 2542 states, 1707 states have (on average 1.328646748681898) internal successors, (2268), 1754 states have internal predecessors, (2268), 701 states have call successors, (701), 133 states have call predecessors, (701), 132 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) [2022-11-02 20:07:58,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-02 20:07:58,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:07:58,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:07:58,880 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:07:58,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:07:58,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1765604170, now seen corresponding path program 1 times [2022-11-02 20:07:58,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:07:58,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042161203] [2022-11-02 20:07:58,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:07:58,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:07:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:59,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:07:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:59,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:07:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:59,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:07:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:59,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:07:59,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:07:59,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042161203] [2022-11-02 20:07:59,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042161203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:07:59,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:07:59,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:07:59,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182592424] [2022-11-02 20:07:59,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:07:59,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:07:59,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:07:59,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:07:59,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:07:59,549 INFO L87 Difference]: Start difference. First operand has 2542 states, 1707 states have (on average 1.328646748681898) internal successors, (2268), 1754 states have internal predecessors, (2268), 701 states have call successors, (701), 133 states have call predecessors, (701), 132 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 20:08:03,514 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 20:08:05,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:08:08,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:08:13,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:08:14,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:08:19,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:08:20,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:08:26,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:08:28,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:08:32,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:08:33,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:08:33,801 INFO L93 Difference]: Finished difference Result 5694 states and 8677 transitions. [2022-11-02 20:08:33,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:08:33,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2022-11-02 20:08:33,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:08:33,856 INFO L225 Difference]: With dead ends: 5694 [2022-11-02 20:08:33,856 INFO L226 Difference]: Without dead ends: 3144 [2022-11-02 20:08:33,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:08:33,887 INFO L413 NwaCegarLoop]: 3378 mSDtfsCounter, 1110 mSDsluCounter, 2883 mSDsCounter, 0 mSdLazyCounter, 2303 mSolverCounterSat, 987 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 6261 SdHoareTripleChecker+Invalid, 3294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 987 IncrementalHoareTripleChecker+Valid, 2303 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:08:33,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 6261 Invalid, 3294 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [987 Valid, 2303 Invalid, 4 Unknown, 0 Unchecked, 33.7s Time] [2022-11-02 20:08:33,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2022-11-02 20:08:34,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2529. [2022-11-02 20:08:34,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 1702 states have (on average 1.3243243243243243) internal successors, (2254), 1741 states have internal predecessors, (2254), 695 states have call successors, (695), 132 states have call predecessors, (695), 131 states have return successors, (684), 680 states have call predecessors, (684), 684 states have call successors, (684) [2022-11-02 20:08:34,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 3633 transitions. [2022-11-02 20:08:34,204 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 3633 transitions. Word has length 35 [2022-11-02 20:08:34,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:08:34,204 INFO L495 AbstractCegarLoop]: Abstraction has 2529 states and 3633 transitions. [2022-11-02 20:08:34,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 20:08:34,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 3633 transitions. [2022-11-02 20:08:34,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-02 20:08:34,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:08:34,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:08:34,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:08:34,211 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:08:34,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:34,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1899617676, now seen corresponding path program 1 times [2022-11-02 20:08:34,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:34,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830022080] [2022-11-02 20:08:34,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:34,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:34,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:08:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:34,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:08:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:34,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:08:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:34,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:34,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:34,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830022080] [2022-11-02 20:08:34,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830022080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:34,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:34,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:08:34,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139576113] [2022-11-02 20:08:34,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:34,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:08:34,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:34,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:08:34,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:08:34,773 INFO L87 Difference]: Start difference. First operand 2529 states and 3633 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:08:39,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:08:42,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:08:49,732 WARN L539 Checker$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 20:08:55,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:08:59,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:08:59,157 INFO L93 Difference]: Finished difference Result 3197 states and 4706 transitions. [2022-11-02 20:08:59,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:08:59,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2022-11-02 20:08:59,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:08:59,191 INFO L225 Difference]: With dead ends: 3197 [2022-11-02 20:08:59,192 INFO L226 Difference]: Without dead ends: 3193 [2022-11-02 20:08:59,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:08:59,201 INFO L413 NwaCegarLoop]: 3379 mSDtfsCounter, 4903 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 1786 mSolverCounterSat, 3103 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5246 SdHoareTripleChecker+Valid, 5192 SdHoareTripleChecker+Invalid, 4890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3103 IncrementalHoareTripleChecker+Valid, 1786 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:08:59,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5246 Valid, 5192 Invalid, 4890 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3103 Valid, 1786 Invalid, 1 Unknown, 0 Unchecked, 23.8s Time] [2022-11-02 20:08:59,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2022-11-02 20:08:59,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 2571. [2022-11-02 20:08:59,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 1732 states have (on average 1.3187066974595842) internal successors, (2284), 1769 states have internal predecessors, (2284), 695 states have call successors, (695), 144 states have call predecessors, (695), 143 states have return successors, (686), 682 states have call predecessors, (686), 686 states have call successors, (686) [2022-11-02 20:08:59,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3665 transitions. [2022-11-02 20:08:59,474 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3665 transitions. Word has length 35 [2022-11-02 20:08:59,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:08:59,475 INFO L495 AbstractCegarLoop]: Abstraction has 2571 states and 3665 transitions. [2022-11-02 20:08:59,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:08:59,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3665 transitions. [2022-11-02 20:08:59,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 20:08:59,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:08:59,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:08:59,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:08:59,491 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:08:59,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:59,492 INFO L85 PathProgramCache]: Analyzing trace with hash 98713607, now seen corresponding path program 1 times [2022-11-02 20:08:59,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:59,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744447831] [2022-11-02 20:08:59,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:59,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:59,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:08:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:59,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:08:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:59,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:08:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:59,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:59,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:59,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744447831] [2022-11-02 20:08:59,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744447831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:59,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:59,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:08:59,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6694827] [2022-11-02 20:08:59,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:59,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:08:59,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:59,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:08:59,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:08:59,947 INFO L87 Difference]: Start difference. First operand 2571 states and 3665 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 20:09:05,640 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 20:09:08,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:09:10,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:09:13,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:09:19,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:09:27,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:09:34,542 WARN L539 Checker$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 20:09:37,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:09:41,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:09:41,174 INFO L93 Difference]: Finished difference Result 8880 states and 12964 transitions. [2022-11-02 20:09:41,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:09:41,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-11-02 20:09:41,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:09:41,214 INFO L225 Difference]: With dead ends: 8880 [2022-11-02 20:09:41,214 INFO L226 Difference]: Without dead ends: 6317 [2022-11-02 20:09:41,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:09:41,227 INFO L413 NwaCegarLoop]: 3816 mSDtfsCounter, 6890 mSDsluCounter, 4396 mSDsCounter, 0 mSdLazyCounter, 3876 mSolverCounterSat, 5244 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7551 SdHoareTripleChecker+Valid, 8212 SdHoareTripleChecker+Invalid, 9124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5244 IncrementalHoareTripleChecker+Valid, 3876 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:09:41,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7551 Valid, 8212 Invalid, 9124 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5244 Valid, 3876 Invalid, 4 Unknown, 0 Unchecked, 40.4s Time] [2022-11-02 20:09:41,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6317 states. [2022-11-02 20:09:41,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6317 to 5104. [2022-11-02 20:09:41,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5104 states, 3440 states have (on average 1.3186046511627907) internal successors, (4536), 3507 states have internal predecessors, (4536), 1374 states have call successors, (1374), 287 states have call predecessors, (1374), 289 states have return successors, (1378), 1359 states have call predecessors, (1378), 1365 states have call successors, (1378) [2022-11-02 20:09:41,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5104 states to 5104 states and 7288 transitions. [2022-11-02 20:09:41,569 INFO L78 Accepts]: Start accepts. Automaton has 5104 states and 7288 transitions. Word has length 36 [2022-11-02 20:09:41,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:09:41,569 INFO L495 AbstractCegarLoop]: Abstraction has 5104 states and 7288 transitions. [2022-11-02 20:09:41,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 20:09:41,570 INFO L276 IsEmpty]: Start isEmpty. Operand 5104 states and 7288 transitions. [2022-11-02 20:09:41,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-02 20:09:41,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:09:41,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:41,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:09:41,574 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:09:41,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:41,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1619670549, now seen corresponding path program 1 times [2022-11-02 20:09:41,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:41,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423119675] [2022-11-02 20:09:41,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:41,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:41,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:09:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:41,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:09:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:41,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:09:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:41,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:42,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:09:42,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423119675] [2022-11-02 20:09:42,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423119675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:09:42,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:09:42,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:09:42,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535449812] [2022-11-02 20:09:42,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:09:42,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:09:42,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:09:42,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:09:42,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:09:42,002 INFO L87 Difference]: Start difference. First operand 5104 states and 7288 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:09:45,266 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 20:09:48,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:09:57,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:01,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:02,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:04,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:06,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:07,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:10:07,369 INFO L93 Difference]: Finished difference Result 6781 states and 9774 transitions. [2022-11-02 20:10:07,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:10:07,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2022-11-02 20:10:07,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:10:07,413 INFO L225 Difference]: With dead ends: 6781 [2022-11-02 20:10:07,413 INFO L226 Difference]: Without dead ends: 6777 [2022-11-02 20:10:07,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:10:07,418 INFO L413 NwaCegarLoop]: 3344 mSDtfsCounter, 5054 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 3059 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5471 SdHoareTripleChecker+Valid, 5225 SdHoareTripleChecker+Invalid, 5050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3059 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:10:07,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5471 Valid, 5225 Invalid, 5050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3059 Valid, 1989 Invalid, 2 Unknown, 0 Unchecked, 24.8s Time] [2022-11-02 20:10:07,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6777 states. [2022-11-02 20:10:07,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6777 to 5496. [2022-11-02 20:10:07,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5496 states, 3704 states have (on average 1.3037257019438444) internal successors, (4829), 3773 states have internal predecessors, (4829), 1420 states have call successors, (1420), 369 states have call predecessors, (1420), 371 states have return successors, (1426), 1407 states have call predecessors, (1426), 1413 states have call successors, (1426) [2022-11-02 20:10:07,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5496 states to 5496 states and 7675 transitions. [2022-11-02 20:10:07,895 INFO L78 Accepts]: Start accepts. Automaton has 5496 states and 7675 transitions. Word has length 38 [2022-11-02 20:10:07,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:10:07,895 INFO L495 AbstractCegarLoop]: Abstraction has 5496 states and 7675 transitions. [2022-11-02 20:10:07,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:10:07,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5496 states and 7675 transitions. [2022-11-02 20:10:07,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-02 20:10:07,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:10:07,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:10:07,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:10:07,900 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:10:07,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:07,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1163074537, now seen corresponding path program 1 times [2022-11-02 20:10:07,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:07,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40405771] [2022-11-02 20:10:07,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:07,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:10:08,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:10:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:10:08,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:10:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:10:08,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:10:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:10:08,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 20:10:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:10:08,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:10:08,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:10:08,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40405771] [2022-11-02 20:10:08,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40405771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:10:08,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:10:08,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:10:08,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979699925] [2022-11-02 20:10:08,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:10:08,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:10:08,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:10:08,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:10:08,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:10:08,177 INFO L87 Difference]: Start difference. First operand 5496 states and 7675 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 20:10:12,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:14,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:17,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:24,263 WARN L539 Checker$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 20:10:27,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:29,091 WARN L539 Checker$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 20:10:34,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:36,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:39,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:40,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:44,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:46,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:47,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:50,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:51,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:10:53,355 WARN L539 Checker$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 20:10:59,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:10:59,664 INFO L93 Difference]: Finished difference Result 16888 states and 24016 transitions. [2022-11-02 20:10:59,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:10:59,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2022-11-02 20:10:59,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:10:59,735 INFO L225 Difference]: With dead ends: 16888 [2022-11-02 20:10:59,735 INFO L226 Difference]: Without dead ends: 11400 [2022-11-02 20:10:59,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:10:59,763 INFO L413 NwaCegarLoop]: 4557 mSDtfsCounter, 4801 mSDsluCounter, 4868 mSDsCounter, 0 mSdLazyCounter, 3746 mSolverCounterSat, 3757 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5322 SdHoareTripleChecker+Valid, 9425 SdHoareTripleChecker+Invalid, 7510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3757 IncrementalHoareTripleChecker+Valid, 3746 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:10:59,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5322 Valid, 9425 Invalid, 7510 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3757 Valid, 3746 Invalid, 7 Unknown, 0 Unchecked, 50.5s Time] [2022-11-02 20:10:59,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11400 states. [2022-11-02 20:11:00,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11400 to 9269. [2022-11-02 20:11:00,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9269 states, 6255 states have (on average 1.3047162270183852) internal successors, (8161), 6365 states have internal predecessors, (8161), 2365 states have call successors, (2365), 639 states have call predecessors, (2365), 648 states have return successors, (2404), 2348 states have call predecessors, (2404), 2358 states have call successors, (2404) [2022-11-02 20:11:00,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9269 states to 9269 states and 12930 transitions. [2022-11-02 20:11:00,533 INFO L78 Accepts]: Start accepts. Automaton has 9269 states and 12930 transitions. Word has length 41 [2022-11-02 20:11:00,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:11:00,534 INFO L495 AbstractCegarLoop]: Abstraction has 9269 states and 12930 transitions. [2022-11-02 20:11:00,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 20:11:00,535 INFO L276 IsEmpty]: Start isEmpty. Operand 9269 states and 12930 transitions. [2022-11-02 20:11:00,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-02 20:11:00,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:11:00,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:00,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:11:00,537 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:11:00,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:00,537 INFO L85 PathProgramCache]: Analyzing trace with hash 993998376, now seen corresponding path program 1 times [2022-11-02 20:11:00,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:00,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391321909] [2022-11-02 20:11:00,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:00,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:00,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:00,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:11:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:00,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:11:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:00,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:11:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:00,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:00,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:00,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391321909] [2022-11-02 20:11:00,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391321909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:00,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:00,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:11:00,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213453958] [2022-11-02 20:11:00,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:00,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:11:00,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:00,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:11:00,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:11:00,844 INFO L87 Difference]: Start difference. First operand 9269 states and 12930 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:11:03,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:11:09,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:11:13,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:11:15,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:11:19,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:11:23,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []