./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 ae007674 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-dev-ae00767 [2021-12-28 04:26:01,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:26:01,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:26:01,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:26:01,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:26:01,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:26:01,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:26:01,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:26:01,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:26:01,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:26:01,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:26:01,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:26:01,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:26:01,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:26:01,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:26:01,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:26:01,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:26:01,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:26:01,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:26:01,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:26:01,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:26:01,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:26:01,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:26:01,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:26:01,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:26:01,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:26:01,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:26:01,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:26:01,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:26:01,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:26:01,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:26:01,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:26:01,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:26:01,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:26:01,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:26:01,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:26:01,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:26:01,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:26:01,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:26:01,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:26:01,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:26:01,096 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:26:01,133 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:26:01,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:26:01,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:26:01,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:26:01,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:26:01,135 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:26:01,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:26:01,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:26:01,137 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:26:01,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:26:01,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:26:01,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:26:01,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:26:01,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:26:01,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:26:01,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:26:01,139 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:26:01,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:26:01,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:26:01,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:26:01,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:26:01,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:26:01,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:26:01,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:26:01,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:26:01,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:26:01,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:26:01,140 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:26:01,141 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:26:01,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:26:01,141 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a1e17c33569fa40e536cd8c869720d5a80d6c0d7c343e9efbe1ac963f2ae01b [2021-12-28 04:26:01,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:26:01,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:26:01,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:26:01,431 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:26:01,432 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:26:01,433 INFO L432 ainManager$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 [2021-12-28 04:26:01,479 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09151d929/915cc79dbeca4da0b6161079c6fac77e/FLAG926c40264 [2021-12-28 04:26:02,090 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:26:02,091 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 [2021-12-28 04:26:02,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09151d929/915cc79dbeca4da0b6161079c6fac77e/FLAG926c40264 [2021-12-28 04:26:02,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09151d929/915cc79dbeca4da0b6161079c6fac77e [2021-12-28 04:26:02,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:26:02,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:26:02,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:26:02,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:26:02,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:26:02,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:26:02" (1/1) ... [2021-12-28 04:26:02,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ef737a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:02, skipping insertion in model container [2021-12-28 04:26:02,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:26:02" (1/1) ... [2021-12-28 04:26:02,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:26:02,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:26:03,607 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] [2021-12-28 04:26:03,652 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-28 04:26:03,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:26:03,686 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:26:03,975 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] [2021-12-28 04:26:03,999 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-28 04:26:04,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:26:04,062 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:26:04,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:04 WrapperNode [2021-12-28 04:26:04,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:26:04,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:26:04,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:26:04,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:26:04,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:04" (1/1) ... [2021-12-28 04:26:04,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:04" (1/1) ... [2021-12-28 04:26:04,366 INFO L137 Inliner]: procedures = 252, calls = 2297, calls flagged for inlining = 114, calls inlined = 111, statements flattened = 6001 [2021-12-28 04:26:04,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:26:04,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:26:04,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:26:04,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:26:04,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:04" (1/1) ... [2021-12-28 04:26:04,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:04" (1/1) ... [2021-12-28 04:26:04,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:04" (1/1) ... [2021-12-28 04:26:04,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:04" (1/1) ... [2021-12-28 04:26:04,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:04" (1/1) ... [2021-12-28 04:26:04,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:04" (1/1) ... [2021-12-28 04:26:04,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:04" (1/1) ... [2021-12-28 04:26:04,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:26:04,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:26:04,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:26:04,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:26:04,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:04" (1/1) ... [2021-12-28 04:26:04,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:26:04,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:26:04,661 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) [2021-12-28 04:26:04,679 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 [2021-12-28 04:26:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure atm_charge [2021-12-28 04:26:04,690 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_charge [2021-12-28 04:26:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-12-28 04:26:04,690 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-12-28 04:26:04,690 INFO L130 BoogieDeclarations]: Found specification of procedure process_tsq [2021-12-28 04:26:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure process_tsq [2021-12-28 04:26:04,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:26:04,691 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-12-28 04:26:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-12-28 04:26:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:26:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:26:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:26:04,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:26:04,693 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:26:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-12-28 04:26:04,693 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-12-28 04:26:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure ns_open [2021-12-28 04:26:04,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_open [2021-12-28 04:26:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-28 04:26:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-28 04:26:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-28 04:26:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-28 04:26:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure ns_read_sram [2021-12-28 04:26:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_read_sram [2021-12-28 04:26:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure get_scq [2021-12-28 04:26:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure get_scq [2021-12-28 04:26:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:26:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:26:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_rx_buf [2021-12-28 04:26:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_rx_buf [2021-12-28 04:26:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-28 04:26:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-28 04:26:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:26:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:26:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure __net_timestamp [2021-12-28 04:26:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __net_timestamp [2021-12-28 04:26:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 04:26:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 04:26:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-28 04:26:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-28 04:26:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:26:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:26:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:26:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:26:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 04:26:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 04:26:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioctl [2021-12-28 04:26:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioctl [2021-12-28 04:26:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-28 04:26:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-28 04:26:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:26:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 04:26:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 04:26:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure process_rsq [2021-12-28 04:26:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure process_rsq [2021-12-28 04:26:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:26:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-28 04:26:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-28 04:26:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-28 04:26:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:26:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:26:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_alloc_skb [2021-12-28 04:26:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_alloc_skb [2021-12-28 04:26:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:26:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-28 04:26:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-28 04:26:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-12-28 04:26:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-12-28 04:26:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:26:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure dequeue_sm_buf [2021-12-28 04:26:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure dequeue_sm_buf [2021-12-28 04:26:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-28 04:26:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-28 04:26:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-28 04:26:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-28 04:26:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-28 04:26:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-28 04:26:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure push_rxbufs [2021-12-28 04:26:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure push_rxbufs [2021-12-28 04:26:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:26:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_get [2021-12-28 04:26:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_get [2021-12-28 04:26:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 04:26:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 04:26:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 04:26:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 04:26:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-12-28 04:26:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-12-28 04:26:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:26:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure ns_close [2021-12-28 04:26:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_close [2021-12-28 04:26:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-28 04:26:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-28 04:26:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-28 04:26:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-28 04:26:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:26:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 04:26:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 04:26:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_read_eprom [2021-12-28 04:26:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_read_eprom [2021-12-28 04:26:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 04:26:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 04:26:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_put [2021-12-28 04:26:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_put [2021-12-28 04:26:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-28 04:26:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-28 04:26:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iov_buf [2021-12-28 04:26:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iov_buf [2021-12-28 04:26:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-28 04:26:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-28 04:26:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:26:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:26:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:26:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-28 04:26:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-28 04:26:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-28 04:26:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-28 04:26:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure ns_send [2021-12-28 04:26:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_send [2021-12-28 04:26:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-12-28 04:26:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-12-28 04:26:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-28 04:26:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-28 04:26:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-28 04:26:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-28 04:26:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:26:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:26:04,762 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-12-28 04:26:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-12-28 04:26:04,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:26:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:26:04,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:26:04,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-28 04:26:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-28 04:26:04,763 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-28 04:26:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-28 04:26:04,763 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-28 04:26:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-28 04:26:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2021-12-28 04:26:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2021-12-28 04:26:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:26:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-28 04:26:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-28 04:26:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-28 04:26:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-28 04:26:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 04:26:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 04:26:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:26:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 04:26:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-28 04:26:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-28 04:26:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-12-28 04:26:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-12-28 04:26:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-28 04:26:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-28 04:26:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 04:26:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 04:26:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure free_scq [2021-12-28 04:26:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure free_scq [2021-12-28 04:26:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2021-12-28 04:26:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2021-12-28 04:26:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2021-12-28 04:26:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2021-12-28 04:26:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iovec_rx_bufs [2021-12-28 04:26:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iovec_rx_bufs [2021-12-28 04:26:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-12-28 04:26:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-12-28 04:26:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_remove_one [2021-12-28 04:26:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_remove_one [2021-12-28 04:26:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2021-12-28 04:26:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2021-12-28 04:26:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-28 04:26:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-28 04:26:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-28 04:26:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-28 04:26:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure ns_init_card_error [2021-12-28 04:26:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_init_card_error [2021-12-28 04:26:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-28 04:26:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-28 04:26:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-28 04:26:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-28 04:26:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-28 04:26:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-28 04:26:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure ns_write_sram [2021-12-28 04:26:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_write_sram [2021-12-28 04:26:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-28 04:26:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-28 04:26:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:26:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-28 04:26:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-28 04:26:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-28 04:26:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-28 04:26:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-28 04:26:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-28 04:26:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:26:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:26:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-12-28 04:26:04,771 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-12-28 04:26:05,527 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:26:05,538 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:26:06,201 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:26:10,190 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:26:10,202 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:26:10,202 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-28 04:26:10,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:26:10 BoogieIcfgContainer [2021-12-28 04:26:10,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:26:10,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:26:10,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:26:10,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:26:10,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:26:02" (1/3) ... [2021-12-28 04:26:10,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5731cfee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:26:10, skipping insertion in model container [2021-12-28 04:26:10,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:04" (2/3) ... [2021-12-28 04:26:10,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5731cfee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:26:10, skipping insertion in model container [2021-12-28 04:26:10,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:26:10" (3/3) ... [2021-12-28 04:26:10,209 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2021-12-28 04:26:10,212 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:26:10,213 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:26:10,247 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:26:10,252 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 [2021-12-28 04:26:10,252 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:26:10,298 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) [2021-12-28 04:26:10,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-28 04:26:10,312 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:26:10,313 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] [2021-12-28 04:26:10,313 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:26:10,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:26:10,317 INFO L85 PathProgramCache]: Analyzing trace with hash 2087334661, now seen corresponding path program 1 times [2021-12-28 04:26:10,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:26:10,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357676885] [2021-12-28 04:26:10,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:26:10,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:26:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:26:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:26:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:26:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:26:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:26:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:26:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:26:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:26:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:26:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:10,968 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-28 04:26:10,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:26:10,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357676885] [2021-12-28 04:26:10,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357676885] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:26:10,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:26:10,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:26:10,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743475000] [2021-12-28 04:26:10,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:26:10,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:26:10,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:26:10,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:26:10,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:26:11,000 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) [2021-12-28 04:26:17,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:26:17,735 INFO L93 Difference]: Finished difference Result 4407 states and 6723 transitions. [2021-12-28 04:26:17,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 04:26:17,737 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 [2021-12-28 04:26:17,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:26:17,762 INFO L225 Difference]: With dead ends: 4407 [2021-12-28 04:26:17,762 INFO L226 Difference]: Without dead ends: 2359 [2021-12-28 04:26:17,783 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 [2021-12-28 04:26:17,786 INFO L933 BasicCegarLoop]: 2768 mSDtfsCounter, 1945 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 2388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2036 SdHoareTripleChecker+Valid, 3997 SdHoareTripleChecker+Invalid, 3829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2388 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-12-28 04:26:17,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2036 Valid, 3997 Invalid, 3829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2388 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2021-12-28 04:26:17,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2359 states. [2021-12-28 04:26:17,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2359 to 1993. [2021-12-28 04:26:17,980 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) [2021-12-28 04:26:17,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2920 transitions. [2021-12-28 04:26:17,998 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2920 transitions. Word has length 149 [2021-12-28 04:26:17,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:26:17,998 INFO L470 AbstractCegarLoop]: Abstraction has 1993 states and 2920 transitions. [2021-12-28 04:26:17,998 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) [2021-12-28 04:26:17,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2920 transitions. [2021-12-28 04:26:18,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-28 04:26:18,009 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:26:18,010 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] [2021-12-28 04:26:18,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:26:18,011 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:26:18,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:26:18,011 INFO L85 PathProgramCache]: Analyzing trace with hash 42047035, now seen corresponding path program 1 times [2021-12-28 04:26:18,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:26:18,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543351835] [2021-12-28 04:26:18,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:26:18,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:26:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:26:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:26:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:26:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:26:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:26:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:26:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:26:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:26:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:26:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:18,358 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-28 04:26:18,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:26:18,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543351835] [2021-12-28 04:26:18,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543351835] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:26:18,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:26:18,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:26:18,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027003453] [2021-12-28 04:26:18,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:26:18,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:26:18,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:26:18,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:26:18,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:26:18,369 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) [2021-12-28 04:26:21,180 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 [] [2021-12-28 04:26:28,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:26:28,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:26:28,932 INFO L93 Difference]: Finished difference Result 6093 states and 9094 transitions. [2021-12-28 04:26:28,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:26:28,934 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 [2021-12-28 04:26:28,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:26:28,967 INFO L225 Difference]: With dead ends: 6093 [2021-12-28 04:26:28,968 INFO L226 Difference]: Without dead ends: 4126 [2021-12-28 04:26:28,977 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 [2021-12-28 04:26:28,978 INFO L933 BasicCegarLoop]: 3265 mSDtfsCounter, 5140 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 3296 mSolverCounterSat, 4160 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5514 SdHoareTripleChecker+Valid, 6439 SdHoareTripleChecker+Invalid, 7457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4160 IncrementalHoareTripleChecker+Valid, 3296 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:26:28,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5514 Valid, 6439 Invalid, 7457 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4160 Valid, 3296 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2021-12-28 04:26:28,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4126 states. [2021-12-28 04:26:29,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4126 to 3482. [2021-12-28 04:26:29,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3482 states, 2359 states have (on average 1.3450614667231877) internal successors, (3173), 2469 states have internal predecessors, (3173), 953 states have call successors, (953), 170 states have call predecessors, (953), 169 states have return successors, (954), 930 states have call predecessors, (954), 952 states have call successors, (954) [2021-12-28 04:26:29,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3482 states to 3482 states and 5080 transitions. [2021-12-28 04:26:29,094 INFO L78 Accepts]: Start accepts. Automaton has 3482 states and 5080 transitions. Word has length 149 [2021-12-28 04:26:29,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:26:29,095 INFO L470 AbstractCegarLoop]: Abstraction has 3482 states and 5080 transitions. [2021-12-28 04:26:29,096 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) [2021-12-28 04:26:29,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3482 states and 5080 transitions. [2021-12-28 04:26:29,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-28 04:26:29,099 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:26:29,100 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] [2021-12-28 04:26:29,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:26:29,100 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:26:29,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:26:29,101 INFO L85 PathProgramCache]: Analyzing trace with hash 573837795, now seen corresponding path program 1 times [2021-12-28 04:26:29,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:26:29,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224136931] [2021-12-28 04:26:29,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:26:29,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:26:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:26:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:26:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:26:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:26:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:26:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:26:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:26:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:26:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:26:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-28 04:26:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:29,396 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-28 04:26:29,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:26:29,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224136931] [2021-12-28 04:26:29,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224136931] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:26:29,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:26:29,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:26:29,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951315737] [2021-12-28 04:26:29,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:26:29,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:26:29,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:26:29,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:26:29,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:26:29,400 INFO L87 Difference]: Start difference. First operand 3482 states and 5080 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (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) [2021-12-28 04:26:36,487 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 [] [2021-12-28 04:26:38,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:26:39,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:26:42,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:26:47,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:26:47,482 INFO L93 Difference]: Finished difference Result 10586 states and 15736 transitions. [2021-12-28 04:26:47,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:26:47,482 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (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 157 [2021-12-28 04:26:47,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:26:47,517 INFO L225 Difference]: With dead ends: 10586 [2021-12-28 04:26:47,518 INFO L226 Difference]: Without dead ends: 7144 [2021-12-28 04:26:47,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:26:47,533 INFO L933 BasicCegarLoop]: 3113 mSDtfsCounter, 4199 mSDsluCounter, 4865 mSDsCounter, 0 mSdLazyCounter, 5710 mSolverCounterSat, 3083 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4623 SdHoareTripleChecker+Valid, 7978 SdHoareTripleChecker+Invalid, 8795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3083 IncrementalHoareTripleChecker+Valid, 5710 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:26:47,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4623 Valid, 7978 Invalid, 8795 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3083 Valid, 5710 Invalid, 2 Unknown, 0 Unchecked, 17.6s Time] [2021-12-28 04:26:47,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7144 states. [2021-12-28 04:26:47,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7144 to 6087. [2021-12-28 04:26:47,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6087 states, 4110 states have (on average 1.335036496350365) internal successors, (5487), 4306 states have internal predecessors, (5487), 1671 states have call successors, (1671), 302 states have call predecessors, (1671), 305 states have return successors, (1695), 1624 states have call predecessors, (1695), 1670 states have call successors, (1695) [2021-12-28 04:26:47,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6087 states to 6087 states and 8853 transitions. [2021-12-28 04:26:47,718 INFO L78 Accepts]: Start accepts. Automaton has 6087 states and 8853 transitions. Word has length 157 [2021-12-28 04:26:47,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:26:47,718 INFO L470 AbstractCegarLoop]: Abstraction has 6087 states and 8853 transitions. [2021-12-28 04:26:47,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (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) [2021-12-28 04:26:47,719 INFO L276 IsEmpty]: Start isEmpty. Operand 6087 states and 8853 transitions. [2021-12-28 04:26:47,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-28 04:26:47,720 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:26:47,721 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, 1] [2021-12-28 04:26:47,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:26:47,721 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:26:47,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:26:47,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1417007163, now seen corresponding path program 1 times [2021-12-28 04:26:47,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:26:47,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096116458] [2021-12-28 04:26:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:26:47,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:26:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:26:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:26:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:26:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:26:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:26:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:26:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:26:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:26:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:47,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:48,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:26:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:48,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:48,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:26:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:48,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:26:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:48,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-28 04:26:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:48,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 04:26:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:48,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-28 04:26:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:26:48,046 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-28 04:26:48,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:26:48,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096116458] [2021-12-28 04:26:48,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096116458] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:26:48,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:26:48,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:26:48,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160950903] [2021-12-28 04:26:48,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:26:48,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:26:48,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:26:48,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:26:48,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:26:48,049 INFO L87 Difference]: Start difference. First operand 6087 states and 8853 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 4 states have internal predecessors, (65), 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) [2021-12-28 04:26:52,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:26:54,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:26:57,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:26:59,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:27:06,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:27:08,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []