./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--net--wireless--prism54--prism54.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_305b9dcb-89c6-4143-8d64-737c0bc442cd/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_305b9dcb-89c6-4143-8d64-737c0bc442cd/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_305b9dcb-89c6-4143-8d64-737c0bc442cd/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_305b9dcb-89c6-4143-8d64-737c0bc442cd/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_305b9dcb-89c6-4143-8d64-737c0bc442cd/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_305b9dcb-89c6-4143-8d64-737c0bc442cd/bin/uautomizer-ug76WZFUDN --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 dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce --- 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-6b4ec56 [2022-11-20 12:14:51,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:14:51,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:14:51,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:14:51,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:14:51,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:14:51,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:14:51,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:14:51,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:14:51,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:14:51,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:14:51,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:14:51,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:14:51,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:14:51,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:14:51,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:14:51,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:14:51,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:14:51,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:14:51,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:14:51,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:14:51,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:14:51,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:14:51,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:14:51,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:14:51,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:14:51,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:14:51,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:14:51,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:14:51,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:14:51,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:14:51,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:14:51,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:14:51,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:14:51,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:14:51,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:14:51,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:14:51,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:14:51,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:14:51,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:14:51,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:14:51,981 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_305b9dcb-89c6-4143-8d64-737c0bc442cd/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:14:52,024 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:14:52,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:14:52,026 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:14:52,026 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:14:52,027 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:14:52,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:14:52,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:14:52,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:14:52,029 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:14:52,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:14:52,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:14:52,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:14:52,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:14:52,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:14:52,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:14:52,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:14:52,032 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:14:52,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:14:52,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:14:52,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:14:52,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:14:52,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:14:52,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:14:52,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:14:52,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:14:52,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:14:52,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:14:52,036 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:14:52,036 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:14:52,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:14:52,036 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_305b9dcb-89c6-4143-8d64-737c0bc442cd/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_305b9dcb-89c6-4143-8d64-737c0bc442cd/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce [2022-11-20 12:14:52,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:14:52,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:14:52,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:14:52,410 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:14:52,410 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:14:52,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_305b9dcb-89c6-4143-8d64-737c0bc442cd/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-11-20 12:14:55,481 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:14:56,273 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:14:56,274 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_305b9dcb-89c6-4143-8d64-737c0bc442cd/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-11-20 12:14:56,338 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_305b9dcb-89c6-4143-8d64-737c0bc442cd/bin/uautomizer-ug76WZFUDN/data/bf3f12420/33737fed51e9406d9be8108aa50ec0a8/FLAG1ee83ade9 [2022-11-20 12:14:56,361 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_305b9dcb-89c6-4143-8d64-737c0bc442cd/bin/uautomizer-ug76WZFUDN/data/bf3f12420/33737fed51e9406d9be8108aa50ec0a8 [2022-11-20 12:14:56,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:14:56,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:14:56,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:14:56,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:14:56,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:14:56,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:14:56" (1/1) ... [2022-11-20 12:14:56,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fe87f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:56, skipping insertion in model container [2022-11-20 12:14:56,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:14:56" (1/1) ... [2022-11-20 12:14:56,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:14:56,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:15:00,958 WARN L237 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_305b9dcb-89c6-4143-8d64-737c0bc442cd/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2022-11-20 12:15:01,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:15:01,520 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:15:02,100 WARN L237 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_305b9dcb-89c6-4143-8d64-737c0bc442cd/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2022-11-20 12:15:02,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:15:02,384 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:15:02,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:02 WrapperNode [2022-11-20 12:15:02,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:15:02,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:15:02,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:15:02,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:15:02,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:02" (1/1) ... [2022-11-20 12:15:02,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:02" (1/1) ... [2022-11-20 12:15:02,927 INFO L138 Inliner]: procedures = 606, calls = 6517, calls flagged for inlining = 203, calls inlined = 162, statements flattened = 7772 [2022-11-20 12:15:02,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:15:02,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:15:02,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:15:02,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:15:02,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:02" (1/1) ... [2022-11-20 12:15:02,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:02" (1/1) ... [2022-11-20 12:15:02,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:02" (1/1) ... [2022-11-20 12:15:02,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:02" (1/1) ... [2022-11-20 12:15:03,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:02" (1/1) ... [2022-11-20 12:15:03,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:02" (1/1) ... [2022-11-20 12:15:03,362 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:02" (1/1) ... [2022-11-20 12:15:03,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:02" (1/1) ... [2022-11-20 12:15:03,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:15:03,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:15:03,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:15:03,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:15:03,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:02" (1/1) ... [2022-11-20 12:15:03,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:15:03,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_305b9dcb-89c6-4143-8d64-737c0bc442cd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:15:03,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_305b9dcb-89c6-4143-8d64-737c0bc442cd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:15:03,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_305b9dcb-89c6-4143-8d64-737c0bc442cd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:15:03,727 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-11-20 12:15:03,727 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-11-20 12:15:03,727 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-11-20 12:15:03,727 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-11-20 12:15:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2022-11-20 12:15:03,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2022-11-20 12:15:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-20 12:15:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 12:15:03,728 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 12:15:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 12:15:03,728 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 12:15:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-11-20 12:15:03,729 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-11-20 12:15:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 12:15:03,729 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 12:15:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 12:15:03,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 12:15:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-11-20 12:15:03,730 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-11-20 12:15:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-20 12:15:03,730 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-20 12:15:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 12:15:03,730 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 12:15:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-20 12:15:03,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-20 12:15:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 12:15:03,731 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 12:15:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-11-20 12:15:03,731 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-11-20 12:15:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-11-20 12:15:03,731 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-11-20 12:15:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-11-20 12:15:03,732 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-11-20 12:15:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 12:15:03,733 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 12:15:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 12:15:03,733 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 12:15:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 12:15:03,734 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 12:15:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-11-20 12:15:03,734 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-11-20 12:15:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 12:15:03,734 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 12:15:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 12:15:03,734 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 12:15:03,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:15:03,735 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-20 12:15:03,735 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-20 12:15:03,735 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 12:15:03,735 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 12:15:03,735 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-20 12:15:03,736 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-20 12:15:03,736 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-11-20 12:15:03,736 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-11-20 12:15:03,736 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 12:15:03,736 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 12:15:03,736 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 12:15:03,737 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 12:15:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-20 12:15:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-11-20 12:15:03,738 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-11-20 12:15:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 12:15:03,738 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 12:15:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-20 12:15:03,738 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-20 12:15:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 12:15:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:15:03,738 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 12:15:03,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 12:15:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 12:15:03,739 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 12:15:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2022-11-20 12:15:03,740 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2022-11-20 12:15:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2022-11-20 12:15:03,740 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2022-11-20 12:15:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 12:15:03,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 12:15:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 12:15:03,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 12:15:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:15:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:15:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 12:15:03,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 12:15:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 12:15:03,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 12:15:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:15:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 12:15:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 12:15:03,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 12:15:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-20 12:15:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-20 12:15:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 12:15:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 12:15:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-20 12:15:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-20 12:15:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-20 12:15:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-20 12:15:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 12:15:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 12:15:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2022-11-20 12:15:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2022-11-20 12:15:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-20 12:15:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-20 12:15:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-20 12:15:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-20 12:15:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:15:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:15:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-20 12:15:03,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-20 12:15:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-20 12:15:03,747 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-20 12:15:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-11-20 12:15:03,747 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-11-20 12:15:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 12:15:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 12:15:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 12:15:03,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 12:15:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 12:15:03,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 12:15:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-20 12:15:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-20 12:15:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 12:15:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 12:15:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-20 12:15:03,754 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-20 12:15:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-11-20 12:15:03,755 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-11-20 12:15:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-11-20 12:15:03,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-11-20 12:15:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2022-11-20 12:15:03,760 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2022-11-20 12:15:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 12:15:03,761 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 12:15:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 12:15:03,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 12:15:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 12:15:03,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 12:15:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 12:15:03,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 12:15:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 12:15:03,761 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 12:15:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 12:15:03,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 12:15:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-20 12:15:03,762 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-20 12:15:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-20 12:15:03,762 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-20 12:15:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-20 12:15:03,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-20 12:15:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 12:15:03,763 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 12:15:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-20 12:15:03,763 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-20 12:15:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:15:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 12:15:03,763 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 12:15:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-11-20 12:15:03,763 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-11-20 12:15:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:15:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-11-20 12:15:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-11-20 12:15:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-20 12:15:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-20 12:15:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-11-20 12:15:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-11-20 12:15:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:15:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-20 12:15:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-20 12:15:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-20 12:15:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-20 12:15:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 12:15:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 12:15:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-20 12:15:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-20 12:15:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-20 12:15:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-20 12:15:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 12:15:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 12:15:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 12:15:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 12:15:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-11-20 12:15:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-11-20 12:15:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-11-20 12:15:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-11-20 12:15:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 12:15:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 12:15:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-20 12:15:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-20 12:15:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-20 12:15:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-20 12:15:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-11-20 12:15:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-11-20 12:15:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-20 12:15:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-20 12:15:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single___1 [2022-11-20 12:15:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single___1 [2022-11-20 12:15:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 12:15:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 12:15:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-11-20 12:15:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-11-20 12:15:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-11-20 12:15:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-11-20 12:15:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 12:15:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 12:15:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-11-20 12:15:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-11-20 12:15:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2022-11-20 12:15:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2022-11-20 12:15:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:15:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-20 12:15:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-20 12:15:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2022-11-20 12:15:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2022-11-20 12:15:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-20 12:15:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-20 12:15:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 12:15:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 12:15:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-11-20 12:15:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-11-20 12:15:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-11-20 12:15:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-11-20 12:15:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-11-20 12:15:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-11-20 12:15:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 12:15:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 12:15:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-20 12:15:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-20 12:15:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-20 12:15:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-20 12:15:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-11-20 12:15:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-11-20 12:15:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-11-20 12:15:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-11-20 12:15:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 12:15:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 12:15:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2022-11-20 12:15:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2022-11-20 12:15:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-20 12:15:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-20 12:15:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-20 12:15:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-20 12:15:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-11-20 12:15:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-11-20 12:15:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-11-20 12:15:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-11-20 12:15:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single___0 [2022-11-20 12:15:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single___0 [2022-11-20 12:15:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 12:15:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 12:15:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 12:15:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 12:15:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:15:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-20 12:15:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-20 12:15:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-11-20 12:15:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-11-20 12:15:04,926 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:15:04,934 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:15:05,460 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 12:15:14,224 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:15:14,250 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:15:14,251 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:15:14,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:15:14 BoogieIcfgContainer [2022-11-20 12:15:14,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:15:14,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:15:14,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:15:14,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:15:14,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:14:56" (1/3) ... [2022-11-20 12:15:14,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178724f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:15:14, skipping insertion in model container [2022-11-20 12:15:14,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:02" (2/3) ... [2022-11-20 12:15:14,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178724f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:15:14, skipping insertion in model container [2022-11-20 12:15:14,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:15:14" (3/3) ... [2022-11-20 12:15:14,269 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-11-20 12:15:14,291 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:15:14,291 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:15:14,392 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:15:14,399 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;@20e04404, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:15:14,399 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:15:14,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 1966 states, 1367 states have (on average 1.3167520117044624) internal successors, (1800), 1407 states have internal predecessors, (1800), 479 states have call successors, (479), 119 states have call predecessors, (479), 118 states have return successors, (471), 469 states have call predecessors, (471), 471 states have call successors, (471) [2022-11-20 12:15:14,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 12:15:14,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:14,426 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:14,426 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:15:14,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:14,432 INFO L85 PathProgramCache]: Analyzing trace with hash -613043477, now seen corresponding path program 1 times [2022-11-20 12:15:14,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:14,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596174550] [2022-11-20 12:15:14,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:14,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:15,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:15:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:16,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:15:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:16,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:15:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:16,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:15:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:16,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:15:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:16,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:16,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596174550] [2022-11-20 12:15:16,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596174550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:16,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:16,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:15:16,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508302007] [2022-11-20 12:15:16,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:16,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:15:16,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:16,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:15:16,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:15:16,354 INFO L87 Difference]: Start difference. First operand has 1966 states, 1367 states have (on average 1.3167520117044624) internal successors, (1800), 1407 states have internal predecessors, (1800), 479 states have call successors, (479), 119 states have call predecessors, (479), 118 states have return successors, (471), 469 states have call predecessors, (471), 471 states have call successors, (471) Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 12:15:29,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:29,231 INFO L93 Difference]: Finished difference Result 6196 states and 9020 transitions. [2022-11-20 12:15:29,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:15:29,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2022-11-20 12:15:29,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:29,291 INFO L225 Difference]: With dead ends: 6196 [2022-11-20 12:15:29,291 INFO L226 Difference]: Without dead ends: 4145 [2022-11-20 12:15:29,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:15:29,319 INFO L413 NwaCegarLoop]: 2567 mSDtfsCounter, 4746 mSDsluCounter, 4113 mSDsCounter, 0 mSdLazyCounter, 4244 mSolverCounterSat, 2597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5084 SdHoareTripleChecker+Valid, 6680 SdHoareTripleChecker+Invalid, 6841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2597 IncrementalHoareTripleChecker+Valid, 4244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:29,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5084 Valid, 6680 Invalid, 6841 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2597 Valid, 4244 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2022-11-20 12:15:29,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4145 states. [2022-11-20 12:15:29,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4145 to 3799. [2022-11-20 12:15:29,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3799 states, 2638 states have (on average 1.2930250189537529) internal successors, (3411), 2686 states have internal predecessors, (3411), 926 states have call successors, (926), 235 states have call predecessors, (926), 234 states have return successors, (913), 909 states have call predecessors, (913), 913 states have call successors, (913) [2022-11-20 12:15:29,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3799 states to 3799 states and 5250 transitions. [2022-11-20 12:15:29,812 INFO L78 Accepts]: Start accepts. Automaton has 3799 states and 5250 transitions. Word has length 52 [2022-11-20 12:15:29,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:29,813 INFO L495 AbstractCegarLoop]: Abstraction has 3799 states and 5250 transitions. [2022-11-20 12:15:29,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 12:15:29,814 INFO L276 IsEmpty]: Start isEmpty. Operand 3799 states and 5250 transitions. [2022-11-20 12:15:29,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-20 12:15:29,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:29,831 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:29,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:15:29,831 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:15:29,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:29,832 INFO L85 PathProgramCache]: Analyzing trace with hash -608073026, now seen corresponding path program 1 times [2022-11-20 12:15:29,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:29,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560449557] [2022-11-20 12:15:29,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:29,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:30,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:15:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:30,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:15:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:30,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:15:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:30,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:15:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:30,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:15:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:30,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-20 12:15:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:30,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:15:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:30,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:15:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:30,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:15:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:30,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 12:15:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:30,968 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 12:15:30,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:30,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560449557] [2022-11-20 12:15:30,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560449557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:30,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:30,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:15:30,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012915883] [2022-11-20 12:15:30,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:30,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:15:30,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:30,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:15:30,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:15:30,978 INFO L87 Difference]: Start difference. First operand 3799 states and 5250 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 12:15:41,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:41,947 INFO L93 Difference]: Finished difference Result 11955 states and 16827 transitions. [2022-11-20 12:15:41,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:15:41,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2022-11-20 12:15:41,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:42,011 INFO L225 Difference]: With dead ends: 11955 [2022-11-20 12:15:42,012 INFO L226 Difference]: Without dead ends: 8166 [2022-11-20 12:15:42,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:15:42,037 INFO L413 NwaCegarLoop]: 2385 mSDtfsCounter, 5559 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 3023 mSolverCounterSat, 3810 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5887 SdHoareTripleChecker+Valid, 5224 SdHoareTripleChecker+Invalid, 6833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3810 IncrementalHoareTripleChecker+Valid, 3023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:42,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5887 Valid, 5224 Invalid, 6833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3810 Valid, 3023 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2022-11-20 12:15:42,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8166 states. [2022-11-20 12:15:42,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8166 to 7466. [2022-11-20 12:15:42,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7466 states, 5188 states have (on average 1.2933693138010793) internal successors, (6710), 5272 states have internal predecessors, (6710), 1815 states have call successors, (1815), 463 states have call predecessors, (1815), 462 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2022-11-20 12:15:42,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7466 states to 7466 states and 10327 transitions. [2022-11-20 12:15:42,616 INFO L78 Accepts]: Start accepts. Automaton has 7466 states and 10327 transitions. Word has length 73 [2022-11-20 12:15:42,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:42,617 INFO L495 AbstractCegarLoop]: Abstraction has 7466 states and 10327 transitions. [2022-11-20 12:15:42,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 12:15:42,617 INFO L276 IsEmpty]: Start isEmpty. Operand 7466 states and 10327 transitions. [2022-11-20 12:15:42,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-20 12:15:42,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:42,620 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:42,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:15:42,621 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:15:42,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:42,621 INFO L85 PathProgramCache]: Analyzing trace with hash -417519396, now seen corresponding path program 1 times [2022-11-20 12:15:42,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:42,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585353561] [2022-11-20 12:15:42,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:42,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:43,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:15:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:43,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:15:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:43,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:15:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:43,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:15:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:43,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:15:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:43,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 12:15:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:43,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:15:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:43,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:15:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:43,593 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 12:15:43,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:43,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585353561] [2022-11-20 12:15:43,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585353561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:43,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:43,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:15:43,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384610535] [2022-11-20 12:15:43,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:43,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:15:43,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:43,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:15:43,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:15:43,602 INFO L87 Difference]: Start difference. First operand 7466 states and 10327 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:15:51,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:51,800 INFO L93 Difference]: Finished difference Result 8144 states and 11559 transitions. [2022-11-20 12:15:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:15:51,801 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 72 [2022-11-20 12:15:51,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:51,852 INFO L225 Difference]: With dead ends: 8144 [2022-11-20 12:15:51,852 INFO L226 Difference]: Without dead ends: 8141 [2022-11-20 12:15:51,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:15:51,860 INFO L413 NwaCegarLoop]: 1998 mSDtfsCounter, 3388 mSDsluCounter, 3062 mSDsCounter, 0 mSdLazyCounter, 2783 mSolverCounterSat, 1418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3712 SdHoareTripleChecker+Valid, 5060 SdHoareTripleChecker+Invalid, 4201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1418 IncrementalHoareTripleChecker+Valid, 2783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:51,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3712 Valid, 5060 Invalid, 4201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1418 Valid, 2783 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-20 12:15:51,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-11-20 12:15:52,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7465. [2022-11-20 12:15:52,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7465 states, 5188 states have (on average 1.2931765612952968) internal successors, (6709), 5271 states have internal predecessors, (6709), 1814 states have call successors, (1814), 463 states have call predecessors, (1814), 462 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2022-11-20 12:15:52,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7465 states to 7465 states and 10325 transitions. [2022-11-20 12:15:52,324 INFO L78 Accepts]: Start accepts. Automaton has 7465 states and 10325 transitions. Word has length 72 [2022-11-20 12:15:52,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:52,326 INFO L495 AbstractCegarLoop]: Abstraction has 7465 states and 10325 transitions. [2022-11-20 12:15:52,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:15:52,327 INFO L276 IsEmpty]: Start isEmpty. Operand 7465 states and 10325 transitions. [2022-11-20 12:15:52,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-20 12:15:52,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:52,332 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:52,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:15:52,332 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:15:52,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:52,333 INFO L85 PathProgramCache]: Analyzing trace with hash -59053176, now seen corresponding path program 1 times [2022-11-20 12:15:52,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:52,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103039712] [2022-11-20 12:15:52,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:52,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:53,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:15:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:53,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:15:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:53,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:15:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:53,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:15:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:53,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:15:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:53,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 12:15:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:53,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:15:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:53,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:15:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:53,405 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 12:15:53,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:53,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103039712] [2022-11-20 12:15:53,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103039712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:53,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:53,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:15:53,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797645205] [2022-11-20 12:15:53,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:53,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:15:53,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:53,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:15:53,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:15:53,409 INFO L87 Difference]: Start difference. First operand 7465 states and 10325 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:15:59,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:59,035 INFO L93 Difference]: Finished difference Result 8143 states and 11557 transitions. [2022-11-20 12:15:59,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:15:59,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 73 [2022-11-20 12:15:59,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:59,077 INFO L225 Difference]: With dead ends: 8143 [2022-11-20 12:15:59,077 INFO L226 Difference]: Without dead ends: 8140 [2022-11-20 12:15:59,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:15:59,082 INFO L413 NwaCegarLoop]: 1986 mSDtfsCounter, 3972 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 2031 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4296 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 3469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2031 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:59,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4296 Valid, 3102 Invalid, 3469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2031 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-20 12:15:59,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8140 states. [2022-11-20 12:15:59,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8140 to 7464. [2022-11-20 12:15:59,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7464 states, 5188 states have (on average 1.2929838087895142) internal successors, (6708), 5270 states have internal predecessors, (6708), 1813 states have call successors, (1813), 463 states have call predecessors, (1813), 462 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2022-11-20 12:15:59,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7464 states to 7464 states and 10323 transitions. [2022-11-20 12:15:59,523 INFO L78 Accepts]: Start accepts. Automaton has 7464 states and 10323 transitions. Word has length 73 [2022-11-20 12:15:59,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:59,525 INFO L495 AbstractCegarLoop]: Abstraction has 7464 states and 10323 transitions. [2022-11-20 12:15:59,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:15:59,526 INFO L276 IsEmpty]: Start isEmpty. Operand 7464 states and 10323 transitions. [2022-11-20 12:15:59,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-20 12:15:59,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:59,529 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:59,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:15:59,530 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:15:59,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:59,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1831497377, now seen corresponding path program 1 times [2022-11-20 12:15:59,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:59,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615471178] [2022-11-20 12:15:59,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:59,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:00,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:16:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:00,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:00,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:16:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:00,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:16:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:00,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:00,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 12:16:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:00,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:00,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:16:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:00,326 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 12:16:00,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:00,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615471178] [2022-11-20 12:16:00,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615471178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:00,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:00,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:16:00,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403404466] [2022-11-20 12:16:00,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:00,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:16:00,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:00,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:16:00,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:16:00,329 INFO L87 Difference]: Start difference. First operand 7464 states and 10323 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:16:07,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:07,150 INFO L93 Difference]: Finished difference Result 8156 states and 11564 transitions. [2022-11-20 12:16:07,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:16:07,151 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 74 [2022-11-20 12:16:07,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:07,192 INFO L225 Difference]: With dead ends: 8156 [2022-11-20 12:16:07,192 INFO L226 Difference]: Without dead ends: 8152 [2022-11-20 12:16:07,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:16:07,199 INFO L413 NwaCegarLoop]: 1977 mSDtfsCounter, 3424 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 1424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3755 SdHoareTripleChecker+Valid, 4006 SdHoareTripleChecker+Invalid, 3591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1424 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:07,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3755 Valid, 4006 Invalid, 3591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1424 Valid, 2167 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-20 12:16:07,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8152 states. [2022-11-20 12:16:07,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8152 to 7474. [2022-11-20 12:16:07,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7474 states, 5196 states have (on average 1.2915704387990763) internal successors, (6711), 5276 states have internal predecessors, (6711), 1811 states have call successors, (1811), 467 states have call predecessors, (1811), 466 states have return successors, (1802), 1794 states have call predecessors, (1802), 1802 states have call successors, (1802) [2022-11-20 12:16:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7474 states to 7474 states and 10324 transitions. [2022-11-20 12:16:07,734 INFO L78 Accepts]: Start accepts. Automaton has 7474 states and 10324 transitions. Word has length 74 [2022-11-20 12:16:07,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:07,735 INFO L495 AbstractCegarLoop]: Abstraction has 7474 states and 10324 transitions. [2022-11-20 12:16:07,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:16:07,736 INFO L276 IsEmpty]: Start isEmpty. Operand 7474 states and 10324 transitions. [2022-11-20 12:16:07,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 12:16:07,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:07,738 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:07,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:16:07,740 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:07,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:07,741 INFO L85 PathProgramCache]: Analyzing trace with hash -942687893, now seen corresponding path program 1 times [2022-11-20 12:16:07,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:07,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573563469] [2022-11-20 12:16:07,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:07,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:08,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:16:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:08,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:08,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:16:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:08,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:16:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:08,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:08,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 12:16:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:08,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:08,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:16:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:08,551 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 12:16:08,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:08,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573563469] [2022-11-20 12:16:08,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573563469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:08,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:08,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:16:08,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881748316] [2022-11-20 12:16:08,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:08,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:16:08,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:08,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:16:08,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:16:08,554 INFO L87 Difference]: Start difference. First operand 7474 states and 10324 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:16:19,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:19,410 INFO L93 Difference]: Finished difference Result 23708 states and 33643 transitions. [2022-11-20 12:16:19,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:16:19,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 75 [2022-11-20 12:16:19,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:19,488 INFO L225 Difference]: With dead ends: 23708 [2022-11-20 12:16:19,488 INFO L226 Difference]: Without dead ends: 16244 [2022-11-20 12:16:19,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:16:19,529 INFO L413 NwaCegarLoop]: 2545 mSDtfsCounter, 4494 mSDsluCounter, 4067 mSDsCounter, 0 mSdLazyCounter, 4198 mSolverCounterSat, 2534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4820 SdHoareTripleChecker+Valid, 6612 SdHoareTripleChecker+Invalid, 6732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2534 IncrementalHoareTripleChecker+Valid, 4198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:19,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4820 Valid, 6612 Invalid, 6732 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2534 Valid, 4198 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-11-20 12:16:19,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16244 states. [2022-11-20 12:16:20,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16244 to 14994. [2022-11-20 12:16:20,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14994 states, 10427 states have (on average 1.2906876378632397) internal successors, (13458), 10614 states have internal predecessors, (13458), 3608 states have call successors, (3608), 928 states have call predecessors, (3608), 958 states have return successors, (3806), 3579 states have call predecessors, (3806), 3598 states have call successors, (3806) [2022-11-20 12:16:20,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14994 states to 14994 states and 20872 transitions. [2022-11-20 12:16:20,538 INFO L78 Accepts]: Start accepts. Automaton has 14994 states and 20872 transitions. Word has length 75 [2022-11-20 12:16:20,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:20,539 INFO L495 AbstractCegarLoop]: Abstraction has 14994 states and 20872 transitions. [2022-11-20 12:16:20,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:16:20,540 INFO L276 IsEmpty]: Start isEmpty. Operand 14994 states and 20872 transitions. [2022-11-20 12:16:20,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-20 12:16:20,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:20,542 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:20,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:16:20,542 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:20,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:20,543 INFO L85 PathProgramCache]: Analyzing trace with hash 840607202, now seen corresponding path program 1 times [2022-11-20 12:16:20,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:20,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646590407] [2022-11-20 12:16:20,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:20,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:21,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:16:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:21,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:21,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:16:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:21,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:16:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:21,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:21,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 12:16:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:21,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:21,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:16:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:21,266 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 12:16:21,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:21,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646590407] [2022-11-20 12:16:21,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646590407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:21,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:21,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:16:21,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745300585] [2022-11-20 12:16:21,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:21,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:16:21,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:21,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:16:21,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:16:21,269 INFO L87 Difference]: Start difference. First operand 14994 states and 20872 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:16:28,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:28,355 INFO L93 Difference]: Finished difference Result 16228 states and 23158 transitions. [2022-11-20 12:16:28,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:16:28,355 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 76 [2022-11-20 12:16:28,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:28,464 INFO L225 Difference]: With dead ends: 16228 [2022-11-20 12:16:28,464 INFO L226 Difference]: Without dead ends: 16225 [2022-11-20 12:16:28,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:16:28,480 INFO L413 NwaCegarLoop]: 1990 mSDtfsCounter, 3395 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 2070 mSolverCounterSat, 1432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3717 SdHoareTripleChecker+Valid, 4124 SdHoareTripleChecker+Invalid, 3502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1432 IncrementalHoareTripleChecker+Valid, 2070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:28,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3717 Valid, 4124 Invalid, 3502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1432 Valid, 2070 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-20 12:16:28,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16225 states. [2022-11-20 12:16:29,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16225 to 14993. [2022-11-20 12:16:29,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14993 states, 10427 states have (on average 1.2905917330008632) internal successors, (13457), 10613 states have internal predecessors, (13457), 3607 states have call successors, (3607), 928 states have call predecessors, (3607), 958 states have return successors, (3806), 3579 states have call predecessors, (3806), 3598 states have call successors, (3806) [2022-11-20 12:16:29,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14993 states to 14993 states and 20870 transitions. [2022-11-20 12:16:29,513 INFO L78 Accepts]: Start accepts. Automaton has 14993 states and 20870 transitions. Word has length 76 [2022-11-20 12:16:29,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:29,514 INFO L495 AbstractCegarLoop]: Abstraction has 14993 states and 20870 transitions. [2022-11-20 12:16:29,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:16:29,515 INFO L276 IsEmpty]: Start isEmpty. Operand 14993 states and 20870 transitions. [2022-11-20 12:16:29,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 12:16:29,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:29,517 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:29,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:16:29,517 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:29,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:29,518 INFO L85 PathProgramCache]: Analyzing trace with hash 288185166, now seen corresponding path program 1 times [2022-11-20 12:16:29,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:29,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853599551] [2022-11-20 12:16:29,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:29,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:30,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:16:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:30,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:30,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:16:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:30,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:16:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:30,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:30,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 12:16:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:30,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:30,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:16:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:30,401 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 12:16:30,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:30,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853599551] [2022-11-20 12:16:30,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853599551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:30,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:30,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:16:30,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733077943] [2022-11-20 12:16:30,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:30,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:16:30,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:30,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:16:30,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:16:30,403 INFO L87 Difference]: Start difference. First operand 14993 states and 20870 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:16:41,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:41,960 INFO L93 Difference]: Finished difference Result 47381 states and 67115 transitions. [2022-11-20 12:16:41,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:16:41,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 77 [2022-11-20 12:16:41,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:42,140 INFO L225 Difference]: With dead ends: 47381 [2022-11-20 12:16:42,141 INFO L226 Difference]: Without dead ends: 32398 [2022-11-20 12:16:42,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:16:42,214 INFO L413 NwaCegarLoop]: 2389 mSDtfsCounter, 4560 mSDsluCounter, 3807 mSDsCounter, 0 mSdLazyCounter, 4056 mSolverCounterSat, 2617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4889 SdHoareTripleChecker+Valid, 6196 SdHoareTripleChecker+Invalid, 6673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2617 IncrementalHoareTripleChecker+Valid, 4056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:42,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4889 Valid, 6196 Invalid, 6673 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2617 Valid, 4056 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-11-20 12:16:42,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32398 states. [2022-11-20 12:16:43,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32398 to 29911. [2022-11-20 12:16:43,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29911 states, 20808 states have (on average 1.290609381007305) internal successors, (26855), 21177 states have internal predecessors, (26855), 7192 states have call successors, (7192), 1849 states have call predecessors, (7192), 1910 states have return successors, (7606), 7140 states have call predecessors, (7606), 7182 states have call successors, (7606) [2022-11-20 12:16:44,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29911 states to 29911 states and 41653 transitions. [2022-11-20 12:16:44,432 INFO L78 Accepts]: Start accepts. Automaton has 29911 states and 41653 transitions. Word has length 77 [2022-11-20 12:16:44,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:44,433 INFO L495 AbstractCegarLoop]: Abstraction has 29911 states and 41653 transitions. [2022-11-20 12:16:44,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:16:44,433 INFO L276 IsEmpty]: Start isEmpty. Operand 29911 states and 41653 transitions. [2022-11-20 12:16:44,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-20 12:16:44,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:44,435 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:44,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:16:44,436 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:44,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:44,436 INFO L85 PathProgramCache]: Analyzing trace with hash 342976101, now seen corresponding path program 1 times [2022-11-20 12:16:44,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:44,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523992059] [2022-11-20 12:16:44,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:44,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:45,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:16:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:45,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:45,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:45,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:16:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:45,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:16:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:45,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:45,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 12:16:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:45,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:45,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:16:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:45,515 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 12:16:45,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:45,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523992059] [2022-11-20 12:16:45,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523992059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:45,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:45,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:16:45,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297088115] [2022-11-20 12:16:45,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:45,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:16:45,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:45,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:16:45,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:16:45,518 INFO L87 Difference]: Start difference. First operand 29911 states and 41653 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:16:52,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:52,566 INFO L93 Difference]: Finished difference Result 32377 states and 46223 transitions. [2022-11-20 12:16:52,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:16:52,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 78 [2022-11-20 12:16:52,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:52,732 INFO L225 Difference]: With dead ends: 32377 [2022-11-20 12:16:52,733 INFO L226 Difference]: Without dead ends: 32363 [2022-11-20 12:16:52,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:16:52,750 INFO L413 NwaCegarLoop]: 1981 mSDtfsCounter, 3958 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 2022 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4278 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 3456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2022 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:52,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4278 Valid, 3097 Invalid, 3456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2022 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-20 12:16:52,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32363 states. [2022-11-20 12:16:54,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32363 to 29899. [2022-11-20 12:16:54,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29899 states, 20797 states have (on average 1.2904745876809156) internal successors, (26838), 21165 states have internal predecessors, (26838), 7191 states have call successors, (7191), 1849 states have call predecessors, (7191), 1910 states have return successors, (7606), 7140 states have call predecessors, (7606), 7182 states have call successors, (7606) [2022-11-20 12:16:54,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29899 states to 29899 states and 41635 transitions. [2022-11-20 12:16:54,769 INFO L78 Accepts]: Start accepts. Automaton has 29899 states and 41635 transitions. Word has length 78 [2022-11-20 12:16:54,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:54,770 INFO L495 AbstractCegarLoop]: Abstraction has 29899 states and 41635 transitions. [2022-11-20 12:16:54,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 12:16:54,770 INFO L276 IsEmpty]: Start isEmpty. Operand 29899 states and 41635 transitions. [2022-11-20 12:16:54,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-20 12:16:54,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:54,779 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:54,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:16:54,780 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:54,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:54,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1529748964, now seen corresponding path program 1 times [2022-11-20 12:16:54,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:54,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040690654] [2022-11-20 12:16:54,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:54,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:16:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:16:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:16:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:16:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 12:16:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 12:16:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 12:16:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 12:16:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-20 12:16:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-20 12:16:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:55,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:55,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:16:55,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040690654] [2022-11-20 12:16:55,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040690654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:55,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:55,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:16:55,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384152503] [2022-11-20 12:16:55,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:55,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:16:55,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:16:55,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:16:55,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:16:55,585 INFO L87 Difference]: Start difference. First operand 29899 states and 41635 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:17:11,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:11,502 INFO L93 Difference]: Finished difference Result 85548 states and 120577 transitions. [2022-11-20 12:17:11,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:17:11,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2022-11-20 12:17:11,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:11,841 INFO L225 Difference]: With dead ends: 85548 [2022-11-20 12:17:11,841 INFO L226 Difference]: Without dead ends: 55659 [2022-11-20 12:17:12,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:17:12,027 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 6610 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 6068 mSolverCounterSat, 4624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6919 SdHoareTripleChecker+Valid, 2871 SdHoareTripleChecker+Invalid, 10692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4624 IncrementalHoareTripleChecker+Valid, 6068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:12,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6919 Valid, 2871 Invalid, 10692 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4624 Valid, 6068 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2022-11-20 12:17:12,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55659 states. [2022-11-20 12:17:15,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55659 to 51295. [2022-11-20 12:17:15,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51295 states, 35725 states have (on average 1.2925402379286215) internal successors, (46176), 36409 states have internal predecessors, (46176), 12187 states have call successors, (12187), 3273 states have call predecessors, (12187), 3382 states have return successors, (12914), 12092 states have call predecessors, (12914), 12178 states have call successors, (12914) [2022-11-20 12:17:15,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51295 states to 51295 states and 71277 transitions. [2022-11-20 12:17:15,726 INFO L78 Accepts]: Start accepts. Automaton has 51295 states and 71277 transitions. Word has length 112 [2022-11-20 12:17:15,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:15,726 INFO L495 AbstractCegarLoop]: Abstraction has 51295 states and 71277 transitions. [2022-11-20 12:17:15,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:17:15,727 INFO L276 IsEmpty]: Start isEmpty. Operand 51295 states and 71277 transitions. [2022-11-20 12:17:15,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-20 12:17:15,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:15,747 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:15,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:17:15,747 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:17:15,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:15,748 INFO L85 PathProgramCache]: Analyzing trace with hash 963596308, now seen corresponding path program 1 times [2022-11-20 12:17:15,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:15,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770250580] [2022-11-20 12:17:15,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:15,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:17:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:17:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:17:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:17:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:17:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 12:17:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:17:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:17:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 12:17:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:17:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:17:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:17:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 12:17:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:17:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:17:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 12:17:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-20 12:17:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:17,672 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-20 12:17:17,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:17,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770250580] [2022-11-20 12:17:17,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770250580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:17,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:17,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:17:17,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411618345] [2022-11-20 12:17:17,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:17,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:17:17,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:17,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:17:17,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:17:17,676 INFO L87 Difference]: Start difference. First operand 51295 states and 71277 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:17:42,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:42,404 INFO L93 Difference]: Finished difference Result 61476 states and 88608 transitions. [2022-11-20 12:17:42,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 12:17:42,407 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2022-11-20 12:17:42,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:42,766 INFO L225 Difference]: With dead ends: 61476 [2022-11-20 12:17:42,766 INFO L226 Difference]: Without dead ends: 61381 [2022-11-20 12:17:42,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:17:42,789 INFO L413 NwaCegarLoop]: 2390 mSDtfsCounter, 3756 mSDsluCounter, 11554 mSDsCounter, 0 mSdLazyCounter, 16307 mSolverCounterSat, 1974 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4176 SdHoareTripleChecker+Valid, 13944 SdHoareTripleChecker+Invalid, 18281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1974 IncrementalHoareTripleChecker+Valid, 16307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:42,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4176 Valid, 13944 Invalid, 18281 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1974 Valid, 16307 Invalid, 0 Unknown, 0 Unchecked, 20.3s Time] [2022-11-20 12:17:42,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61381 states. [2022-11-20 12:17:46,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61381 to 51275. [2022-11-20 12:17:46,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51275 states, 35722 states have (on average 1.2923408543754549) internal successors, (46165), 36399 states have internal predecessors, (46165), 12170 states have call successors, (12170), 3272 states have call predecessors, (12170), 3382 states have return successors, (12898), 12083 states have call predecessors, (12898), 12162 states have call successors, (12898) [2022-11-20 12:17:46,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51275 states to 51275 states and 71233 transitions. [2022-11-20 12:17:46,592 INFO L78 Accepts]: Start accepts. Automaton has 51275 states and 71233 transitions. Word has length 135 [2022-11-20 12:17:46,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:46,593 INFO L495 AbstractCegarLoop]: Abstraction has 51275 states and 71233 transitions. [2022-11-20 12:17:46,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:17:46,593 INFO L276 IsEmpty]: Start isEmpty. Operand 51275 states and 71233 transitions. [2022-11-20 12:17:46,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-20 12:17:46,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:46,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:46,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:17:46,608 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:17:46,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:46,609 INFO L85 PathProgramCache]: Analyzing trace with hash -2086606507, now seen corresponding path program 1 times [2022-11-20 12:17:46,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:46,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282027193] [2022-11-20 12:17:46,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:46,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:17:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:17:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:17:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:17:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:17:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 12:17:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:17:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:17:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 12:17:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:17:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:17:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:17:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-20 12:17:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:17:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:17:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-20 12:17:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-20 12:17:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,721 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-20 12:17:47,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:47,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282027193] [2022-11-20 12:17:47,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282027193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:47,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:47,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:17:47,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153719417] [2022-11-20 12:17:47,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:47,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:17:47,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:47,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:17:47,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:17:47,724 INFO L87 Difference]: Start difference. First operand 51275 states and 71233 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:18:12,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:18:12,769 INFO L93 Difference]: Finished difference Result 106853 states and 150055 transitions. [2022-11-20 12:18:12,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:18:12,769 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2022-11-20 12:18:12,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:18:12,980 INFO L225 Difference]: With dead ends: 106853 [2022-11-20 12:18:12,980 INFO L226 Difference]: Without dead ends: 55588 [2022-11-20 12:18:13,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:18:13,124 INFO L413 NwaCegarLoop]: 1540 mSDtfsCounter, 4537 mSDsluCounter, 4561 mSDsCounter, 0 mSdLazyCounter, 13489 mSolverCounterSat, 2856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4955 SdHoareTripleChecker+Valid, 6101 SdHoareTripleChecker+Invalid, 16345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2856 IncrementalHoareTripleChecker+Valid, 13489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:18:13,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4955 Valid, 6101 Invalid, 16345 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2856 Valid, 13489 Invalid, 0 Unknown, 0 Unchecked, 19.8s Time] [2022-11-20 12:18:13,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55588 states. [2022-11-20 12:18:16,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55588 to 51211. [2022-11-20 12:18:16,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51211 states, 35680 states have (on average 1.2922365470852017) internal successors, (46107), 36363 states have internal predecessors, (46107), 12155 states have call successors, (12155), 3258 states have call predecessors, (12155), 3375 states have return successors, (12875), 12069 states have call predecessors, (12875), 12147 states have call successors, (12875) [2022-11-20 12:18:16,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51211 states to 51211 states and 71137 transitions. [2022-11-20 12:18:16,932 INFO L78 Accepts]: Start accepts. Automaton has 51211 states and 71137 transitions. Word has length 135 [2022-11-20 12:18:16,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:18:16,932 INFO L495 AbstractCegarLoop]: Abstraction has 51211 states and 71137 transitions. [2022-11-20 12:18:16,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:18:16,933 INFO L276 IsEmpty]: Start isEmpty. Operand 51211 states and 71137 transitions. [2022-11-20 12:18:16,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-20 12:18:16,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:18:16,958 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:18:16,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:18:16,958 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:18:16,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:18:16,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1916151656, now seen corresponding path program 1 times [2022-11-20 12:18:16,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:18:16,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559472517] [2022-11-20 12:18:16,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:18:16,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:18:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:17,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:18:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:17,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:18:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:17,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:18:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:17,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:18:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:17,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:18:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:17,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 12:18:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:17,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:18:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:17,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:18:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:17,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 12:18:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:17,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 12:18:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:17,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-20 12:18:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:17,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 12:18:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:17,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 12:18:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:17,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 12:18:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:17,949 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 12:18:17,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:18:17,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559472517] [2022-11-20 12:18:17,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559472517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:18:17,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:18:17,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:18:17,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243900497] [2022-11-20 12:18:17,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:18:17,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:18:17,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:18:17,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:18:17,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:18:17,952 INFO L87 Difference]: Start difference. First operand 51211 states and 71137 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 12:18:43,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:18:43,122 INFO L93 Difference]: Finished difference Result 132279 states and 185586 transitions. [2022-11-20 12:18:43,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 12:18:43,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 146 [2022-11-20 12:18:43,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:18:43,679 INFO L225 Difference]: With dead ends: 132279 [2022-11-20 12:18:43,679 INFO L226 Difference]: Without dead ends: 81078 [2022-11-20 12:18:43,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-11-20 12:18:43,843 INFO L413 NwaCegarLoop]: 1303 mSDtfsCounter, 4653 mSDsluCounter, 2746 mSDsCounter, 0 mSdLazyCounter, 9696 mSolverCounterSat, 2881 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5041 SdHoareTripleChecker+Valid, 4049 SdHoareTripleChecker+Invalid, 12577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2881 IncrementalHoareTripleChecker+Valid, 9696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:18:43,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5041 Valid, 4049 Invalid, 12577 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2881 Valid, 9696 Invalid, 0 Unknown, 0 Unchecked, 18.2s Time] [2022-11-20 12:18:43,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81078 states.