./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 4a1e17c33569fa40e536cd8c869720d5a80d6c0d7c343e9efbe1ac963f2ae01b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 04:27:58,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:27:58,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:27:58,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:27:58,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:27:58,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:27:58,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:27:58,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:27:58,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:27:58,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:27:58,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:27:58,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:27:58,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:27:58,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:27:58,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:27:58,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:27:58,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:27:58,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:27:58,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:27:58,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:27:58,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:27:58,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:27:58,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:27:58,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:27:58,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:27:58,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:27:58,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:27:58,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:27:58,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:27:58,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:27:58,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:27:58,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:27:58,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:27:58,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:27:58,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:27:58,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:27:58,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:27:58,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:27:58,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:27:58,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:27:58,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:27:58,984 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:27:59,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:27:59,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:27:59,007 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:27:59,008 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:27:59,009 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:27:59,009 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:27:59,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:27:59,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:27:59,010 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:27:59,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:27:59,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:27:59,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:27:59,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:27:59,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:27:59,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:27:59,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:27:59,012 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:27:59,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:27:59,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:27:59,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:27:59,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:27:59,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:27:59,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:27:59,013 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:27:59,013 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:27:59,013 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:27:59,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:27:59,013 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:27:59,013 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:27:59,014 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:27:59,014 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:27:59,014 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a1e17c33569fa40e536cd8c869720d5a80d6c0d7c343e9efbe1ac963f2ae01b [2021-12-16 04:27:59,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:27:59,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:27:59,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:27:59,220 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:27:59,221 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:27:59,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2021-12-16 04:27:59,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb7b7eaed/fd5bebb284bc449fb43eac07c2982aab/FLAG7ad6d1a99 [2021-12-16 04:27:59,924 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:27:59,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2021-12-16 04:27:59,965 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb7b7eaed/fd5bebb284bc449fb43eac07c2982aab/FLAG7ad6d1a99 [2021-12-16 04:28:00,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb7b7eaed/fd5bebb284bc449fb43eac07c2982aab [2021-12-16 04:28:00,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:28:00,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:28:00,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:28:00,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:28:00,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:28:00,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:28:00" (1/1) ... [2021-12-16 04:28:00,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ed0a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:00, skipping insertion in model container [2021-12-16 04:28:00,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:28:00" (1/1) ... [2021-12-16 04:28:00,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:28:00,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:28:01,444 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i[321673,321686] [2021-12-16 04:28:01,476 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-16 04:28:01,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:28:01,510 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:28:01,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i[321673,321686] [2021-12-16 04:28:01,829 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-16 04:28:01,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:28:01,882 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:28:01,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:01 WrapperNode [2021-12-16 04:28:01,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:28:01,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:28:01,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:28:01,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:28:01,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:01" (1/1) ... [2021-12-16 04:28:01,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:01" (1/1) ... [2021-12-16 04:28:02,127 INFO L137 Inliner]: procedures = 252, calls = 2297, calls flagged for inlining = 114, calls inlined = 111, statements flattened = 6001 [2021-12-16 04:28:02,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:28:02,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:28:02,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:28:02,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:28:02,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:01" (1/1) ... [2021-12-16 04:28:02,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:01" (1/1) ... [2021-12-16 04:28:02,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:01" (1/1) ... [2021-12-16 04:28:02,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:01" (1/1) ... [2021-12-16 04:28:02,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:01" (1/1) ... [2021-12-16 04:28:02,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:01" (1/1) ... [2021-12-16 04:28:02,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:01" (1/1) ... [2021-12-16 04:28:02,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:28:02,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:28:02,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:28:02,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:28:02,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:01" (1/1) ... [2021-12-16 04:28:02,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:28:02,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:28:02,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 04:28:02,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 04:28:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure atm_charge [2021-12-16 04:28:02,384 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_charge [2021-12-16 04:28:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-12-16 04:28:02,384 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-12-16 04:28:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure process_tsq [2021-12-16 04:28:02,384 INFO L138 BoogieDeclarations]: Found implementation of procedure process_tsq [2021-12-16 04:28:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 04:28:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-12-16 04:28:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-12-16 04:28:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 04:28:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:28:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:28:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-16 04:28:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-16 04:28:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-12-16 04:28:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-12-16 04:28:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure ns_open [2021-12-16 04:28:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_open [2021-12-16 04:28:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-16 04:28:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-16 04:28:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-16 04:28:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-16 04:28:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure ns_read_sram [2021-12-16 04:28:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_read_sram [2021-12-16 04:28:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure get_scq [2021-12-16 04:28:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure get_scq [2021-12-16 04:28:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:28:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:28:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_rx_buf [2021-12-16 04:28:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_rx_buf [2021-12-16 04:28:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-16 04:28:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-16 04:28:02,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:28:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:28:02,388 INFO L130 BoogieDeclarations]: Found specification of procedure __net_timestamp [2021-12-16 04:28:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __net_timestamp [2021-12-16 04:28:02,388 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-16 04:28:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-16 04:28:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-16 04:28:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-16 04:28:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 04:28:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 04:28:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:28:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:28:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 04:28:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 04:28:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioctl [2021-12-16 04:28:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioctl [2021-12-16 04:28:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-16 04:28:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-16 04:28:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:28:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-16 04:28:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-16 04:28:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure process_rsq [2021-12-16 04:28:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure process_rsq [2021-12-16 04:28:02,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:28:02,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-16 04:28:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-16 04:28:02,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-16 04:28:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 04:28:02,393 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 04:28:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_alloc_skb [2021-12-16 04:28:02,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_alloc_skb [2021-12-16 04:28:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:28:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-16 04:28:02,394 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-16 04:28:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-12-16 04:28:02,394 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-12-16 04:28:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:28:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure dequeue_sm_buf [2021-12-16 04:28:02,394 INFO L138 BoogieDeclarations]: Found implementation of procedure dequeue_sm_buf [2021-12-16 04:28:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-16 04:28:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-16 04:28:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-16 04:28:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-16 04:28:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-16 04:28:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-16 04:28:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure push_rxbufs [2021-12-16 04:28:02,396 INFO L138 BoogieDeclarations]: Found implementation of procedure push_rxbufs [2021-12-16 04:28:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 04:28:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_get [2021-12-16 04:28:02,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_get [2021-12-16 04:28:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 04:28:02,396 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 04:28:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-16 04:28:02,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-16 04:28:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-12-16 04:28:02,397 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-12-16 04:28:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 04:28:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure ns_close [2021-12-16 04:28:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_close [2021-12-16 04:28:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-16 04:28:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-16 04:28:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-16 04:28:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-16 04:28:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:28:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-16 04:28:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-16 04:28:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_read_eprom [2021-12-16 04:28:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_read_eprom [2021-12-16 04:28:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 04:28:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 04:28:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_put [2021-12-16 04:28:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_put [2021-12-16 04:28:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-16 04:28:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-16 04:28:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iov_buf [2021-12-16 04:28:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iov_buf [2021-12-16 04:28:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-16 04:28:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-16 04:28:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 04:28:02,401 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 04:28:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:28:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-16 04:28:02,401 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-16 04:28:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-16 04:28:02,402 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-16 04:28:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure ns_send [2021-12-16 04:28:02,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_send [2021-12-16 04:28:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-12-16 04:28:02,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-12-16 04:28:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-16 04:28:02,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-16 04:28:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-16 04:28:02,406 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-16 04:28:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:28:02,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:28:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-12-16 04:28:02,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-12-16 04:28:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-16 04:28:02,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-16 04:28:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:28:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-16 04:28:02,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-16 04:28:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-16 04:28:02,413 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-16 04:28:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-16 04:28:02,413 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-16 04:28:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2021-12-16 04:28:02,414 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2021-12-16 04:28:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:28:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-16 04:28:02,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-16 04:28:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-16 04:28:02,415 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-16 04:28:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-16 04:28:02,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-16 04:28:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:28:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-16 04:28:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-16 04:28:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-16 04:28:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-12-16 04:28:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-12-16 04:28:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-16 04:28:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-16 04:28:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-16 04:28:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-16 04:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure free_scq [2021-12-16 04:28:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure free_scq [2021-12-16 04:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2021-12-16 04:28:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2021-12-16 04:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2021-12-16 04:28:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2021-12-16 04:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iovec_rx_bufs [2021-12-16 04:28:02,418 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iovec_rx_bufs [2021-12-16 04:28:02,418 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-12-16 04:28:02,418 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-12-16 04:28:02,418 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_remove_one [2021-12-16 04:28:02,418 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_remove_one [2021-12-16 04:28:02,418 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2021-12-16 04:28:02,418 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2021-12-16 04:28:02,418 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-16 04:28:02,418 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-16 04:28:02,419 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-16 04:28:02,419 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-16 04:28:02,419 INFO L130 BoogieDeclarations]: Found specification of procedure ns_init_card_error [2021-12-16 04:28:02,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_init_card_error [2021-12-16 04:28:02,419 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-16 04:28:02,419 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-16 04:28:02,419 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-16 04:28:02,419 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-16 04:28:02,419 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-16 04:28:02,420 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-16 04:28:02,420 INFO L130 BoogieDeclarations]: Found specification of procedure ns_write_sram [2021-12-16 04:28:02,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_write_sram [2021-12-16 04:28:02,420 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-16 04:28:02,420 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-16 04:28:02,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:28:02,420 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-16 04:28:02,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-16 04:28:02,420 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-16 04:28:02,420 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-16 04:28:02,421 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-16 04:28:02,421 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-16 04:28:02,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:28:02,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:28:02,421 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-12-16 04:28:02,421 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-12-16 04:28:03,113 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:28:03,117 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:28:03,679 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:28:06,985 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:28:06,998 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:28:06,999 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-16 04:28:07,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:28:07 BoogieIcfgContainer [2021-12-16 04:28:07,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:28:07,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:28:07,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:28:07,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:28:07,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:28:00" (1/3) ... [2021-12-16 04:28:07,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cfb8b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:28:07, skipping insertion in model container [2021-12-16 04:28:07,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:01" (2/3) ... [2021-12-16 04:28:07,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cfb8b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:28:07, skipping insertion in model container [2021-12-16 04:28:07,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:28:07" (3/3) ... [2021-12-16 04:28:07,007 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2021-12-16 04:28:07,010 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:28:07,011 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:28:07,046 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:28:07,050 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 04:28:07,050 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:28:07,085 INFO L276 IsEmpty]: Start isEmpty. Operand has 2029 states, 1373 states have (on average 1.3466860888565186) internal successors, (1849), 1444 states have internal predecessors, (1849), 569 states have call successors, (569), 90 states have call predecessors, (569), 89 states have return successors, (563), 552 states have call predecessors, (563), 563 states have call successors, (563) [2021-12-16 04:28:07,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-16 04:28:07,095 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:28:07,096 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2021-12-16 04:28:07,096 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:28:07,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:28:07,100 INFO L85 PathProgramCache]: Analyzing trace with hash 2087334661, now seen corresponding path program 1 times [2021-12-16 04:28:07,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:28:07,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009460450] [2021-12-16 04:28:07,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:28:07,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:28:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:28:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:28:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:28:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:28:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:28:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 04:28:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 04:28:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 04:28:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 04:28:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:07,679 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-16 04:28:07,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:28:07,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009460450] [2021-12-16 04:28:07,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009460450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:28:07,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:28:07,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:28:07,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53103643] [2021-12-16 04:28:07,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:28:07,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:28:07,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:28:07,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:28:07,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:28:07,708 INFO L87 Difference]: Start difference. First operand has 2029 states, 1373 states have (on average 1.3466860888565186) internal successors, (1849), 1444 states have internal predecessors, (1849), 569 states have call successors, (569), 90 states have call predecessors, (569), 89 states have return successors, (563), 552 states have call predecessors, (563), 563 states have call successors, (563) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 04:28:13,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:28:13,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:28:13,627 INFO L93 Difference]: Finished difference Result 4407 states and 6723 transitions. [2021-12-16 04:28:13,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 04:28:13,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 149 [2021-12-16 04:28:13,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:28:13,670 INFO L225 Difference]: With dead ends: 4407 [2021-12-16 04:28:13,670 INFO L226 Difference]: Without dead ends: 2359 [2021-12-16 04:28:13,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:28:13,697 INFO L933 BasicCegarLoop]: 2758 mSDtfsCounter, 1959 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 2400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2050 SdHoareTripleChecker+Valid, 3984 SdHoareTripleChecker+Invalid, 3834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2400 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-16 04:28:13,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2050 Valid, 3984 Invalid, 3834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2400 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-12-16 04:28:13,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2359 states. [2021-12-16 04:28:13,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2359 to 1993. [2021-12-16 04:28:13,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1345 states have (on average 1.3405204460966542) internal successors, (1803), 1406 states have internal predecessors, (1803), 559 states have call successors, (559), 89 states have call predecessors, (559), 88 states have return successors, (558), 547 states have call predecessors, (558), 558 states have call successors, (558) [2021-12-16 04:28:13,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2920 transitions. [2021-12-16 04:28:13,847 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2920 transitions. Word has length 149 [2021-12-16 04:28:13,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:28:13,848 INFO L470 AbstractCegarLoop]: Abstraction has 1993 states and 2920 transitions. [2021-12-16 04:28:13,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-16 04:28:13,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2920 transitions. [2021-12-16 04:28:13,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-16 04:28:13,857 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:28:13,857 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2021-12-16 04:28:13,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:28:13,857 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:28:13,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:28:13,858 INFO L85 PathProgramCache]: Analyzing trace with hash 42047035, now seen corresponding path program 1 times [2021-12-16 04:28:13,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:28:13,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408621009] [2021-12-16 04:28:13,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:28:13,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:28:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:28:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:28:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:28:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:28:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:28:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 04:28:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 04:28:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 04:28:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 04:28:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:14,211 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-16 04:28:14,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:28:14,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408621009] [2021-12-16 04:28:14,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408621009] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:28:14,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:28:14,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:28:14,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523317886] [2021-12-16 04:28:14,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:28:14,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:28:14,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:28:14,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:28:14,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:28:14,214 INFO L87 Difference]: Start difference. First operand 1993 states and 2920 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2021-12-16 04:28:18,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:28:24,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:28:24,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:28:24,952 INFO L93 Difference]: Finished difference Result 6097 states and 9098 transitions. [2021-12-16 04:28:24,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:28:24,952 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), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 149 [2021-12-16 04:28:24,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:28:24,977 INFO L225 Difference]: With dead ends: 6097 [2021-12-16 04:28:24,978 INFO L226 Difference]: Without dead ends: 4130 [2021-12-16 04:28:24,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:28:24,992 INFO L933 BasicCegarLoop]: 3284 mSDtfsCounter, 5174 mSDsluCounter, 3686 mSDsCounter, 0 mSdLazyCounter, 2799 mSolverCounterSat, 4180 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5543 SdHoareTripleChecker+Valid, 6970 SdHoareTripleChecker+Invalid, 6980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4180 IncrementalHoareTripleChecker+Valid, 2799 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-12-16 04:28:24,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5543 Valid, 6970 Invalid, 6980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4180 Valid, 2799 Invalid, 1 Unknown, 0 Unchecked, 10.4s Time] [2021-12-16 04:28:24,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4130 states. [2021-12-16 04:28:25,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4130 to 3486. [2021-12-16 04:28:25,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3486 states, 2362 states have (on average 1.3450465707027943) internal successors, (3177), 2472 states have internal predecessors, (3177), 954 states have call successors, (954), 170 states have call predecessors, (954), 169 states have return successors, (953), 931 states have call predecessors, (953), 953 states have call successors, (953) [2021-12-16 04:28:25,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3486 states to 3486 states and 5084 transitions. [2021-12-16 04:28:25,132 INFO L78 Accepts]: Start accepts. Automaton has 3486 states and 5084 transitions. Word has length 149 [2021-12-16 04:28:25,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:28:25,134 INFO L470 AbstractCegarLoop]: Abstraction has 3486 states and 5084 transitions. [2021-12-16 04:28:25,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2021-12-16 04:28:25,134 INFO L276 IsEmpty]: Start isEmpty. Operand 3486 states and 5084 transitions. [2021-12-16 04:28:25,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-12-16 04:28:25,141 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:28:25,141 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2021-12-16 04:28:25,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 04:28:25,141 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:28:25,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:28:25,142 INFO L85 PathProgramCache]: Analyzing trace with hash -725484821, now seen corresponding path program 1 times [2021-12-16 04:28:25,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:28:25,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592372881] [2021-12-16 04:28:25,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:28:25,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:28:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:28:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:28:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:28:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:28:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:28:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 04:28:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 04:28:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 04:28:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 04:28:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-16 04:28:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,489 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-16 04:28:25,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:28:25,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592372881] [2021-12-16 04:28:25,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592372881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:28:25,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:28:25,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:28:25,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294375419] [2021-12-16 04:28:25,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:28:25,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:28:25,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:28:25,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:28:25,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:28:25,494 INFO L87 Difference]: Start difference. First operand 3486 states and 5084 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-16 04:28:31,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:28:36,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:28:36,987 INFO L93 Difference]: Finished difference Result 10598 states and 15749 transitions. [2021-12-16 04:28:36,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:28:36,988 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), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 156 [2021-12-16 04:28:36,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:28:37,025 INFO L225 Difference]: With dead ends: 10598 [2021-12-16 04:28:37,025 INFO L226 Difference]: Without dead ends: 7152 [2021-12-16 04:28:37,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:28:37,043 INFO L933 BasicCegarLoop]: 3112 mSDtfsCounter, 4608 mSDsluCounter, 4364 mSDsCounter, 0 mSdLazyCounter, 3998 mSolverCounterSat, 3285 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5035 SdHoareTripleChecker+Valid, 7476 SdHoareTripleChecker+Invalid, 7284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3285 IncrementalHoareTripleChecker+Valid, 3998 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-12-16 04:28:37,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5035 Valid, 7476 Invalid, 7284 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3285 Valid, 3998 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2021-12-16 04:28:37,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7152 states. [2021-12-16 04:28:37,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7152 to 6095. [2021-12-16 04:28:37,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6095 states, 4116 states have (on average 1.3350340136054422) internal successors, (5495), 4312 states have internal predecessors, (5495), 1673 states have call successors, (1673), 302 states have call predecessors, (1673), 305 states have return successors, (1694), 1626 states have call predecessors, (1694), 1672 states have call successors, (1694) [2021-12-16 04:28:37,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6095 states to 6095 states and 8862 transitions. [2021-12-16 04:28:37,400 INFO L78 Accepts]: Start accepts. Automaton has 6095 states and 8862 transitions. Word has length 156 [2021-12-16 04:28:37,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:28:37,400 INFO L470 AbstractCegarLoop]: Abstraction has 6095 states and 8862 transitions. [2021-12-16 04:28:37,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-16 04:28:37,400 INFO L276 IsEmpty]: Start isEmpty. Operand 6095 states and 8862 transitions. [2021-12-16 04:28:37,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-16 04:28:37,403 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:28:37,403 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:28:37,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 04:28:37,419 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:28:37,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:28:37,420 INFO L85 PathProgramCache]: Analyzing trace with hash -2061735436, now seen corresponding path program 1 times [2021-12-16 04:28:37,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:28:37,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482363730] [2021-12-16 04:28:37,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:28:37,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:28:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:28:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:28:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:28:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:28:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:28:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 04:28:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 04:28:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 04:28:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 04:28:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-16 04:28:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-16 04:28:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-16 04:28:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:37,772 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-16 04:28:37,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:28:37,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482363730] [2021-12-16 04:28:37,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482363730] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:28:37,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:28:37,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 04:28:37,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754094425] [2021-12-16 04:28:37,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:28:37,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 04:28:37,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:28:37,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 04:28:37,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:28:37,776 INFO L87 Difference]: Start difference. First operand 6095 states and 8862 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 04:28:47,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:28:48,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:28:59,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:28:59,989 INFO L93 Difference]: Finished difference Result 23369 states and 35862 transitions. [2021-12-16 04:28:59,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-16 04:28:59,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 174 [2021-12-16 04:28:59,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:29:00,229 INFO L225 Difference]: With dead ends: 23369 [2021-12-16 04:29:00,229 INFO L226 Difference]: Without dead ends: 17314 [2021-12-16 04:29:00,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-16 04:29:00,266 INFO L933 BasicCegarLoop]: 3620 mSDtfsCounter, 7366 mSDsluCounter, 12444 mSDsCounter, 0 mSdLazyCounter, 10469 mSolverCounterSat, 6682 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7966 SdHoareTripleChecker+Valid, 16064 SdHoareTripleChecker+Invalid, 17151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6682 IncrementalHoareTripleChecker+Valid, 10469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:29:00,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7966 Valid, 16064 Invalid, 17151 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6682 Valid, 10469 Invalid, 0 Unknown, 0 Unchecked, 21.2s Time] [2021-12-16 04:29:00,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17314 states. [2021-12-16 04:29:00,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17314 to 12165. [2021-12-16 04:29:00,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12165 states, 8221 states have (on average 1.3345091837975915) internal successors, (10971), 8613 states have internal predecessors, (10971), 3333 states have call successors, (3333), 603 states have call predecessors, (3333), 610 states have return successors, (3432), 3240 states have call predecessors, (3432), 3332 states have call successors, (3432) [2021-12-16 04:29:00,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12165 states to 12165 states and 17736 transitions. [2021-12-16 04:29:00,816 INFO L78 Accepts]: Start accepts. Automaton has 12165 states and 17736 transitions. Word has length 174 [2021-12-16 04:29:00,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:29:00,817 INFO L470 AbstractCegarLoop]: Abstraction has 12165 states and 17736 transitions. [2021-12-16 04:29:00,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 04:29:00,817 INFO L276 IsEmpty]: Start isEmpty. Operand 12165 states and 17736 transitions. [2021-12-16 04:29:00,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-16 04:29:00,820 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:29:00,820 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:29:00,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 04:29:00,820 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:29:00,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:29:00,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1746251582, now seen corresponding path program 1 times [2021-12-16 04:29:00,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:29:00,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527364626] [2021-12-16 04:29:00,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:29:00,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:29:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:00,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:29:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:00,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:00,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:00,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:29:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:00,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:29:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:29:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:29:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 04:29:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 04:29:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 04:29:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 04:29:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-16 04:29:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-16 04:29:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-16 04:29:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:01,135 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-16 04:29:01,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:29:01,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527364626] [2021-12-16 04:29:01,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527364626] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:29:01,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:29:01,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 04:29:01,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056398457] [2021-12-16 04:29:01,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:29:01,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 04:29:01,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:29:01,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 04:29:01,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:29:01,138 INFO L87 Difference]: Start difference. First operand 12165 states and 17736 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15)