./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-dummy.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-dummy.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ --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 03942fb4d0ac32f7db1e4d3d4eac0021a1e0e1ed20d292c85e85d41f510ad14b --- 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-dbf71c6-m [2022-10-17 10:16:50,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:16:50,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:16:50,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:16:50,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:16:50,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:16:50,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:16:50,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:16:50,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:16:50,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:16:50,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:16:50,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:16:50,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:16:50,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:16:50,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:16:50,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:16:50,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:16:50,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:16:50,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:16:50,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:16:50,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:16:50,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:16:50,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:16:50,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:16:50,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:16:50,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:16:50,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:16:50,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:16:50,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:16:50,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:16:50,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:16:50,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:16:50,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:16:50,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:16:50,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:16:50,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:16:50,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:16:50,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:16:50,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:16:50,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:16:50,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:16:50,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:16:50,477 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:16:50,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:16:50,477 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:16:50,478 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:16:50,478 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:16:50,479 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:16:50,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:16:50,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:16:50,480 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:16:50,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:16:50,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:16:50,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:16:50,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:16:50,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:16:50,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:16:50,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:16:50,482 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:16:50,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:16:50,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:16:50,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:16:50,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:16:50,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:16:50,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:16:50,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:16:50,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:16:50,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:16:50,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:16:50,484 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:16:50,484 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:16:50,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:16:50,485 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_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03942fb4d0ac32f7db1e4d3d4eac0021a1e0e1ed20d292c85e85d41f510ad14b [2022-10-17 10:16:50,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:16:50,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:16:50,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:16:50,864 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:16:50,865 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:16:50,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-dummy.ko-entry_point.cil.out.i [2022-10-17 10:16:50,950 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ/data/67b097c24/73ecf781d6d845d1b953d6133ba9cf98/FLAG0b8e04007 [2022-10-17 10:16:51,825 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:16:51,826 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-dummy.ko-entry_point.cil.out.i [2022-10-17 10:16:51,872 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ/data/67b097c24/73ecf781d6d845d1b953d6133ba9cf98/FLAG0b8e04007 [2022-10-17 10:16:52,341 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ/data/67b097c24/73ecf781d6d845d1b953d6133ba9cf98 [2022-10-17 10:16:52,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:16:52,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:16:52,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:16:52,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:16:52,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:16:52,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:16:52" (1/1) ... [2022-10-17 10:16:52,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d757aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:52, skipping insertion in model container [2022-10-17 10:16:52,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:16:52" (1/1) ... [2022-10-17 10:16:52,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:16:52,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:16:53,107 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3761] [2022-10-17 10:16:53,108 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3762-3763] [2022-10-17 10:16:53,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-dummy.ko-entry_point.cil.out.i[114477,114490] [2022-10-17 10:16:54,093 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-10-17 10:16:54,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:16:54,164 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:16:54,259 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3761] [2022-10-17 10:16:54,259 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3762-3763] [2022-10-17 10:16:54,274 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-dummy.ko-entry_point.cil.out.i[114477,114490] [2022-10-17 10:16:54,417 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-10-17 10:16:54,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:16:54,676 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:16:54,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:54 WrapperNode [2022-10-17 10:16:54,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:16:54,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:16:54,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:16:54,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:16:54,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:54" (1/1) ... [2022-10-17 10:16:54,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:54" (1/1) ... [2022-10-17 10:16:54,941 INFO L138 Inliner]: procedures = 222, calls = 1606, calls flagged for inlining = 100, calls inlined = 88, statements flattened = 3148 [2022-10-17 10:16:54,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:16:54,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:16:54,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:16:54,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:16:54,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:54" (1/1) ... [2022-10-17 10:16:54,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:54" (1/1) ... [2022-10-17 10:16:55,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:54" (1/1) ... [2022-10-17 10:16:55,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:54" (1/1) ... [2022-10-17 10:16:55,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:54" (1/1) ... [2022-10-17 10:16:55,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:54" (1/1) ... [2022-10-17 10:16:55,150 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:54" (1/1) ... [2022-10-17 10:16:55,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:54" (1/1) ... [2022-10-17 10:16:55,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:16:55,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:16:55,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:16:55,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:16:55,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:54" (1/1) ... [2022-10-17 10:16:55,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:16:55,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:16:55,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:16:55,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723999a-4bf6-4e44-88a1-d84af09f8ae9/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:16:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure hw_param_interval_c [2022-10-17 10:16:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_param_interval_c [2022-10-17 10:16:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-10-17 10:16:55,272 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-10-17 10:16:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-10-17 10:16:55,272 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-10-17 10:16:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-10-17 10:16:55,272 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-10-17 10:16:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_systimer_prepare [2022-10-17 10:16:55,273 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_systimer_prepare [2022-10-17 10:16:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:16:55,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:16:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_period_elapsed [2022-10-17 10:16:55,273 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_period_elapsed [2022-10-17 10:16:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-17 10:16:55,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-17 10:16:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:16:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:16:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:16:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:16:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_systimer_start [2022-10-17 10:16:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_systimer_start [2022-10-17 10:16:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_systimer_free [2022-10-17 10:16:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_systimer_free [2022-10-17 10:16:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-17 10:16:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-17 10:16:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_pcm_prepare [2022-10-17 10:16:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_pcm_prepare [2022-10-17 10:16:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:16:55,276 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:16:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure snd_dummy_unregister_all [2022-10-17 10:16:55,276 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_dummy_unregister_all [2022-10-17 10:16:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:16:55,276 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:16:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_set_ops [2022-10-17 10:16:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_set_ops [2022-10-17 10:16:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_hrtimer_free [2022-10-17 10:16:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_hrtimer_free [2022-10-17 10:16:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 10:16:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 10:16:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_systimer_pointer [2022-10-17 10:16:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_systimer_pointer [2022-10-17 10:16:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2022-10-17 10:16:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2022-10-17 10:16:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:16:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_hrtimer_pointer [2022-10-17 10:16:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_hrtimer_pointer [2022-10-17 10:16:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure snd_dummy_remove [2022-10-17 10:16:55,279 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_dummy_remove [2022-10-17 10:16:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:16:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-17 10:16:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-17 10:16:55,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-17 10:16:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_hrtimer_start [2022-10-17 10:16:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_hrtimer_start [2022-10-17 10:16:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-10-17 10:16:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-10-17 10:16:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_hrtimer_create [2022-10-17 10:16:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_hrtimer_create [2022-10-17 10:16:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure snd_dummy_probe [2022-10-17 10:16:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_dummy_probe [2022-10-17 10:16:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure free_fake_buffer [2022-10-17 10:16:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure free_fake_buffer [2022-10-17 10:16:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_pcm_silence [2022-10-17 10:16:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_pcm_silence [2022-10-17 10:16:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:16:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:16:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_pcm_hw_free [2022-10-17 10:16:55,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_pcm_hw_free [2022-10-17 10:16:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-17 10:16:55,282 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-17 10:16:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_hrtimer_stop [2022-10-17 10:16:55,283 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_hrtimer_stop [2022-10-17 10:16:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_pcm_close [2022-10-17 10:16:55,283 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_pcm_close [2022-10-17 10:16:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-17 10:16:55,283 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-17 10:16:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_systimer_update [2022-10-17 10:16:55,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_systimer_update [2022-10-17 10:16:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_pcm_copy [2022-10-17 10:16:55,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_pcm_copy [2022-10-17 10:16:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 10:16:55,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 10:16:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_hrtimer_prepare [2022-10-17 10:16:55,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_hrtimer_prepare [2022-10-17 10:16:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-10-17 10:16:55,285 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-10-17 10:16:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-17 10:16:55,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-17 10:16:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:16:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_pcm_page [2022-10-17 10:16:55,286 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_pcm_page [2022-10-17 10:16:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:16:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure snd_dummy_resume [2022-10-17 10:16:55,286 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_dummy_resume [2022-10-17 10:16:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:16:55,286 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:16:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_systimer_rearm [2022-10-17 10:16:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_systimer_rearm [2022-10-17 10:16:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:16:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~~ktime_t~0 [2022-10-17 10:16:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~~ktime_t~0 [2022-10-17 10:16:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_systimer_create [2022-10-17 10:16:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_systimer_create [2022-10-17 10:16:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2022-10-17 10:16:55,288 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2022-10-17 10:16:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:16:55,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:16:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:16:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:16:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~snd_pcm_uframes_t~0 [2022-10-17 10:16:55,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~snd_pcm_uframes_t~0 [2022-10-17 10:16:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure emu10k1_playback_constraints [2022-10-17 10:16:55,289 INFO L138 BoogieDeclarations]: Found implementation of procedure emu10k1_playback_constraints [2022-10-17 10:16:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_pcm_trigger [2022-10-17 10:16:55,289 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_pcm_trigger [2022-10-17 10:16:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:16:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-10-17 10:16:55,290 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-10-17 10:16:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:16:55,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:16:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2022-10-17 10:16:55,291 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2022-10-17 10:16:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-17 10:16:55,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-17 10:16:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_systimer_stop [2022-10-17 10:16:55,291 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_systimer_stop [2022-10-17 10:16:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_hrtimer_sync [2022-10-17 10:16:55,292 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_hrtimer_sync [2022-10-17 10:16:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure snd_power_change_state [2022-10-17 10:16:55,292 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_power_change_state [2022-10-17 10:16:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure hrtimer_cb_get_time [2022-10-17 10:16:55,292 INFO L138 BoogieDeclarations]: Found implementation of procedure hrtimer_cb_get_time [2022-10-17 10:16:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_pcm_pointer [2022-10-17 10:16:55,292 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_pcm_pointer [2022-10-17 10:16:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2022-10-17 10:16:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2022-10-17 10:16:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-10-17 10:16:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-10-17 10:16:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure snd_dummy_suspend [2022-10-17 10:16:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_dummy_suspend [2022-10-17 10:16:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_pcm_open [2022-10-17 10:16:55,294 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_pcm_open [2022-10-17 10:16:55,294 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-17 10:16:55,294 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-17 10:16:55,294 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_pcm_hw_params [2022-10-17 10:16:55,294 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_pcm_hw_params [2022-10-17 10:16:55,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:16:55,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:16:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:16:55,295 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 10:16:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 10:16:55,921 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:16:55,926 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:16:56,524 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:16:59,820 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:16:59,836 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:16:59,836 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:16:59,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:16:59 BoogieIcfgContainer [2022-10-17 10:16:59,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:16:59,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:16:59,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:16:59,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:16:59,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:16:52" (1/3) ... [2022-10-17 10:16:59,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ac8f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:16:59, skipping insertion in model container [2022-10-17 10:16:59,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:54" (2/3) ... [2022-10-17 10:16:59,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ac8f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:16:59, skipping insertion in model container [2022-10-17 10:16:59,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:16:59" (3/3) ... [2022-10-17 10:16:59,853 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-dummy.ko-entry_point.cil.out.i [2022-10-17 10:16:59,873 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:16:59,874 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:16:59,976 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:16:59,983 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;@3be3ef11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:16:59,983 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:16:59,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 979 states, 721 states have (on average 1.391123439667129) internal successors, (1003), 734 states have internal predecessors, (1003), 188 states have call successors, (188), 69 states have call predecessors, (188), 68 states have return successors, (179), 178 states have call predecessors, (179), 179 states have call successors, (179) [2022-10-17 10:17:00,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-17 10:17:00,025 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:00,025 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:17:00,026 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:17:00,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:00,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1507197346, now seen corresponding path program 1 times [2022-10-17 10:17:00,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:00,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100576351] [2022-10-17 10:17:00,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:00,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:17:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:01,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:17:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:01,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:17:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:01,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:17:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:01,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:17:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:01,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:17:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:01,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:17:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:01,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-17 10:17:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:01,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-17 10:17:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:01,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-17 10:17:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:01,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:17:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:01,252 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-17 10:17:01,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:17:01,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100576351] [2022-10-17 10:17:01,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100576351] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:17:01,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:17:01,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:17:01,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003157144] [2022-10-17 10:17:01,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:17:01,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:17:01,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:17:01,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:17:01,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:17:01,317 INFO L87 Difference]: Start difference. First operand has 979 states, 721 states have (on average 1.391123439667129) internal successors, (1003), 734 states have internal predecessors, (1003), 188 states have call successors, (188), 69 states have call predecessors, (188), 68 states have return successors, (179), 178 states have call predecessors, (179), 179 states have call successors, (179) Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-17 10:17:08,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:17:08,243 INFO L93 Difference]: Finished difference Result 3002 states and 4338 transitions. [2022-10-17 10:17:08,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:17:08,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 80 [2022-10-17 10:17:08,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:17:08,283 INFO L225 Difference]: With dead ends: 3002 [2022-10-17 10:17:08,283 INFO L226 Difference]: Without dead ends: 1993 [2022-10-17 10:17:08,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:17:08,304 INFO L413 NwaCegarLoop]: 1414 mSDtfsCounter, 2143 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 1024 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2231 SdHoareTripleChecker+Valid, 3825 SdHoareTripleChecker+Invalid, 2341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1024 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:17:08,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2231 Valid, 3825 Invalid, 2341 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1024 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-10-17 10:17:08,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2022-10-17 10:17:08,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1859. [2022-10-17 10:17:08,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1387 states have (on average 1.3763518385003606) internal successors, (1909), 1392 states have internal predecessors, (1909), 338 states have call successors, (338), 134 states have call predecessors, (338), 133 states have return successors, (337), 334 states have call predecessors, (337), 337 states have call successors, (337) [2022-10-17 10:17:08,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2584 transitions. [2022-10-17 10:17:08,559 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2584 transitions. Word has length 80 [2022-10-17 10:17:08,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:17:08,560 INFO L495 AbstractCegarLoop]: Abstraction has 1859 states and 2584 transitions. [2022-10-17 10:17:08,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-17 10:17:08,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2584 transitions. [2022-10-17 10:17:08,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-17 10:17:08,567 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:08,567 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:17:08,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:17:08,571 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:17:08,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:08,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1983332007, now seen corresponding path program 1 times [2022-10-17 10:17:08,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:08,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225504252] [2022-10-17 10:17:08,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:08,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:17:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:08,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:17:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:08,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:17:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:08,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:17:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:09,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:17:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:09,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:17:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:09,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:17:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:09,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-17 10:17:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:09,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-17 10:17:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:09,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-17 10:17:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:09,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:17:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:09,125 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-17 10:17:09,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:17:09,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225504252] [2022-10-17 10:17:09,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225504252] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:17:09,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:17:09,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:17:09,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722672963] [2022-10-17 10:17:09,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:17:09,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:17:09,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:17:09,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:17:09,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:17:09,130 INFO L87 Difference]: Start difference. First operand 1859 states and 2584 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-17 10:17:15,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:17:15,786 INFO L93 Difference]: Finished difference Result 5707 states and 7998 transitions. [2022-10-17 10:17:15,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:17:15,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 82 [2022-10-17 10:17:15,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:17:15,825 INFO L225 Difference]: With dead ends: 5707 [2022-10-17 10:17:15,825 INFO L226 Difference]: Without dead ends: 3875 [2022-10-17 10:17:15,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:17:15,840 INFO L413 NwaCegarLoop]: 1417 mSDtfsCounter, 2104 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 969 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 3855 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 969 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:17:15,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2184 Valid, 3855 Invalid, 2260 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [969 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-10-17 10:17:15,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3875 states. [2022-10-17 10:17:16,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3875 to 3613. [2022-10-17 10:17:16,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3613 states, 2701 states have (on average 1.3765272121436505) internal successors, (3718), 2712 states have internal predecessors, (3718), 646 states have call successors, (646), 266 states have call predecessors, (646), 265 states have return successors, (645), 638 states have call predecessors, (645), 645 states have call successors, (645) [2022-10-17 10:17:16,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3613 states to 3613 states and 5009 transitions. [2022-10-17 10:17:16,108 INFO L78 Accepts]: Start accepts. Automaton has 3613 states and 5009 transitions. Word has length 82 [2022-10-17 10:17:16,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:17:16,111 INFO L495 AbstractCegarLoop]: Abstraction has 3613 states and 5009 transitions. [2022-10-17 10:17:16,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-17 10:17:16,111 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5009 transitions. [2022-10-17 10:17:16,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-17 10:17:16,117 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:16,118 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:17:16,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:17:16,118 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:17:16,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:16,119 INFO L85 PathProgramCache]: Analyzing trace with hash 946668088, now seen corresponding path program 1 times [2022-10-17 10:17:16,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:16,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818400510] [2022-10-17 10:17:16,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:16,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:17:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:16,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:17:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:16,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:17:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:16,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:17:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:16,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:17:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:16,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:17:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:16,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:17:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:16,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-17 10:17:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:16,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-17 10:17:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:16,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-17 10:17:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:16,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:17:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:16,625 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-17 10:17:16,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:17:16,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818400510] [2022-10-17 10:17:16,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818400510] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:17:16,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:17:16,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:17:16,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21893240] [2022-10-17 10:17:16,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:17:16,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:17:16,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:17:16,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:17:16,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:17:16,631 INFO L87 Difference]: Start difference. First operand 3613 states and 5009 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10)