./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.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 04a4b1f21e140a71b13d0aa3889e8a2db465377126c9603026e75e43052ee15d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:32:36,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:32:36,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:32:36,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:32:36,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:32:36,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:32:36,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:32:36,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:32:36,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:32:36,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:32:36,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:32:36,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:32:36,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:32:36,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:32:36,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:32:36,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:32:36,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:32:36,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:32:36,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:32:36,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:32:36,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:32:36,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:32:36,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:32:36,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:32:36,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:32:36,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:32:36,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:32:36,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:32:36,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:32:36,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:32:36,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:32:36,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:32:36,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:32:36,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:32:36,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:32:36,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:32:36,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:32:36,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:32:36,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:32:36,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:32:36,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:32:36,503 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:32:36,525 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:32:36,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:32:36,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:32:36,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:32:36,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:32:36,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:32:36,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:32:36,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:32:36,534 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:32:36,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:32:36,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:32:36,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:32:36,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:32:36,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:32:36,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:32:36,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:32:36,536 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:32:36,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:32:36,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:32:36,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:32:36,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:32:36,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:32:36,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:32:36,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:32:36,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:32:36,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:32:36,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:32:36,538 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:32:36,538 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:32:36,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:32:36,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:32:36,538 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04a4b1f21e140a71b13d0aa3889e8a2db465377126c9603026e75e43052ee15d [2021-12-22 14:32:36,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:32:36,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:32:36,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:32:36,771 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:32:36,771 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:32:36,772 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2021-12-22 14:32:36,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f892e0063/9cc05d27e47649cc909d341b14e17d99/FLAGc4a36e1d1 [2021-12-22 14:32:37,523 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:32:37,524 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2021-12-22 14:32:37,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f892e0063/9cc05d27e47649cc909d341b14e17d99/FLAGc4a36e1d1 [2021-12-22 14:32:37,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f892e0063/9cc05d27e47649cc909d341b14e17d99 [2021-12-22 14:32:37,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:32:37,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:32:37,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:32:37,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:32:37,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:32:37,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:32:37" (1/1) ... [2021-12-22 14:32:37,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e0ed2ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:37, skipping insertion in model container [2021-12-22 14:32:37,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:32:37" (1/1) ... [2021-12-22 14:32:37,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:32:38,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:32:40,083 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i[386276,386289] [2021-12-22 14:32:40,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:32:40,212 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:32:40,752 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i[386276,386289] [2021-12-22 14:32:40,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:32:40,835 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:32:40,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:40 WrapperNode [2021-12-22 14:32:40,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:32:40,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:32:40,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:32:40,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:32:40,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:40" (1/1) ... [2021-12-22 14:32:40,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:40" (1/1) ... [2021-12-22 14:32:41,151 INFO L137 Inliner]: procedures = 356, calls = 3806, calls flagged for inlining = 167, calls inlined = 133, statements flattened = 7285 [2021-12-22 14:32:41,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:32:41,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:32:41,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:32:41,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:32:41,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:40" (1/1) ... [2021-12-22 14:32:41,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:40" (1/1) ... [2021-12-22 14:32:41,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:40" (1/1) ... [2021-12-22 14:32:41,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:40" (1/1) ... [2021-12-22 14:32:41,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:40" (1/1) ... [2021-12-22 14:32:41,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:40" (1/1) ... [2021-12-22 14:32:41,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:40" (1/1) ... [2021-12-22 14:32:41,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:32:41,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:32:41,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:32:41,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:32:41,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:40" (1/1) ... [2021-12-22 14:32:41,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:32:41,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:32:41,520 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) [2021-12-22 14:32:41,551 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 [2021-12-22 14:32:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2021-12-22 14:32:41,573 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2021-12-22 14:32:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2021-12-22 14:32:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2021-12-22 14:32:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-22 14:32:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:32:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:32:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2021-12-22 14:32:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2021-12-22 14:32:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 14:32:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 14:32:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-22 14:32:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-22 14:32:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-22 14:32:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-22 14:32:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure set_signals [2021-12-22 14:32:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure set_signals [2021-12-22 14:32:41,576 INFO L130 BoogieDeclarations]: Found specification of procedure irq_test [2021-12-22 14:32:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_test [2021-12-22 14:32:41,576 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_dma_bufs [2021-12-22 14:32:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_dma_bufs [2021-12-22 14:32:41,576 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_ioctl [2021-12-22 14:32:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_ioctl [2021-12-22 14:32:41,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:32:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:32:41,577 INFO L130 BoogieDeclarations]: Found specification of procedure flush_chars [2021-12-22 14:32:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_chars [2021-12-22 14:32:41,577 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-12-22 14:32:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-12-22 14:32:41,577 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:32:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:32:41,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:32:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:32:41,578 INFO L130 BoogieDeclarations]: Found specification of procedure tx_stop [2021-12-22 14:32:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_stop [2021-12-22 14:32:41,578 INFO L130 BoogieDeclarations]: Found specification of procedure sca_init [2021-12-22 14:32:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure sca_init [2021-12-22 14:32:41,578 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-22 14:32:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-22 14:32:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-22 14:32:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-22 14:32:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:32:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:32:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure chars_in_buffer [2021-12-22 14:32:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure chars_in_buffer [2021-12-22 14:32:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 14:32:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 14:32:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-22 14:32:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-22 14:32:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure change_params [2021-12-22 14:32:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure change_params [2021-12-22 14:32:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-12-22 14:32:41,581 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-12-22 14:32:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-22 14:32:41,581 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-22 14:32:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2021-12-22 14:32:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2021-12-22 14:32:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:32:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:32:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure set_break [2021-12-22 14:32:41,583 INFO L138 BoogieDeclarations]: Found implementation of procedure set_break [2021-12-22 14:32:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure tx_start [2021-12-22 14:32:41,583 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_start [2021-12-22 14:32:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:32:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-22 14:32:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2021-12-22 14:32:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2021-12-22 14:32:41,584 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_frame_bufs [2021-12-22 14:32:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_frame_bufs [2021-12-22 14:32:41,584 INFO L130 BoogieDeclarations]: Found specification of procedure rx_free_frame_buffers [2021-12-22 14:32:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_free_frame_buffers [2021-12-22 14:32:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:32:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure wait_until_sent [2021-12-22 14:32:41,585 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_until_sent [2021-12-22 14:32:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-22 14:32:41,585 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-22 14:32:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:32:41,585 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:32:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure synclinkmp_cleanup [2021-12-22 14:32:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure synclinkmp_cleanup [2021-12-22 14:32:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-22 14:32:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-22 14:32:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:32:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2021-12-22 14:32:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2021-12-22 14:32:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-22 14:32:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-22 14:32:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:32:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure set_rate [2021-12-22 14:32:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rate [2021-12-22 14:32:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-22 14:32:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-22 14:32:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2021-12-22 14:32:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2021-12-22 14:32:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-22 14:32:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-22 14:32:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 14:32:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 14:32:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmset [2021-12-22 14:32:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmset [2021-12-22 14:32:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 14:32:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 14:32:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2021-12-22 14:32:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2021-12-22 14:32:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 14:32:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 14:32:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure rx_stop [2021-12-22 14:32:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_stop [2021-12-22 14:32:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_test [2021-12-22 14:32:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_test [2021-12-22 14:32:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-22 14:32:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-22 14:32:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_timeout [2021-12-22 14:32:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_timeout [2021-12-22 14:32:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:32:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-22 14:32:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-22 14:32:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 14:32:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 14:32:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:32:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-22 14:32:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-22 14:32:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2021-12-22 14:32:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2021-12-22 14:32:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure release_resources [2021-12-22 14:32:41,596 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resources [2021-12-22 14:32:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:32:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-22 14:32:41,600 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-22 14:32:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 14:32:41,600 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 14:32:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-12-22 14:32:41,601 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-12-22 14:32:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure tx_set_idle [2021-12-22 14:32:41,601 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_set_idle [2021-12-22 14:32:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure set_termios [2021-12-22 14:32:41,601 INFO L138 BoogieDeclarations]: Found implementation of procedure set_termios [2021-12-22 14:32:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:32:41,601 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:32:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure write_room [2021-12-22 14:32:41,602 INFO L138 BoogieDeclarations]: Found implementation of procedure write_room [2021-12-22 14:32:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure enable_loopback [2021-12-22 14:32:41,602 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_loopback [2021-12-22 14:32:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure install [2021-12-22 14:32:41,602 INFO L138 BoogieDeclarations]: Found implementation of procedure install [2021-12-22 14:32:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2021-12-22 14:32:41,602 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2021-12-22 14:32:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 14:32:41,602 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 14:32:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure throttle [2021-12-22 14:32:41,603 INFO L138 BoogieDeclarations]: Found implementation of procedure throttle [2021-12-22 14:32:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-22 14:32:41,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-22 14:32:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:32:41,603 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:32:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load_fifo [2021-12-22 14:32:41,603 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load_fifo [2021-12-22 14:32:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-22 14:32:41,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-22 14:32:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:32:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-22 14:32:41,604 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-22 14:32:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load_dma_buffer [2021-12-22 14:32:41,604 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load_dma_buffer [2021-12-22 14:32:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure program_hw [2021-12-22 14:32:41,604 INFO L138 BoogieDeclarations]: Found implementation of procedure program_hw [2021-12-22 14:32:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2021-12-22 14:32:41,604 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2021-12-22 14:32:41,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:32:41,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:32:41,605 INFO L130 BoogieDeclarations]: Found specification of procedure reset_port [2021-12-22 14:32:41,605 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_port [2021-12-22 14:32:41,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:32:41,605 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-22 14:32:41,605 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-22 14:32:41,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:32:41,605 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2021-12-22 14:32:41,606 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2021-12-22 14:32:41,606 INFO L130 BoogieDeclarations]: Found specification of procedure register_test [2021-12-22 14:32:41,606 INFO L138 BoogieDeclarations]: Found implementation of procedure register_test [2021-12-22 14:32:41,606 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2021-12-22 14:32:41,606 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2021-12-22 14:32:41,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:32:41,606 INFO L130 BoogieDeclarations]: Found specification of procedure hangup [2021-12-22 14:32:41,606 INFO L138 BoogieDeclarations]: Found implementation of procedure hangup [2021-12-22 14:32:41,606 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 14:32:41,607 INFO L130 BoogieDeclarations]: Found specification of procedure get_icount [2021-12-22 14:32:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure get_icount [2021-12-22 14:32:41,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ops_disconnect_1 [2021-12-22 14:32:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ops_disconnect_1 [2021-12-22 14:32:41,607 INFO L130 BoogieDeclarations]: Found specification of procedure write_control_reg [2021-12-22 14:32:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure write_control_reg [2021-12-22 14:32:41,607 INFO L130 BoogieDeclarations]: Found specification of procedure put_char [2021-12-22 14:32:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure put_char [2021-12-22 14:32:41,607 INFO L130 BoogieDeclarations]: Found specification of procedure unthrottle [2021-12-22 14:32:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure unthrottle [2021-12-22 14:32:41,608 INFO L130 BoogieDeclarations]: Found specification of procedure tx_release [2021-12-22 14:32:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_release [2021-12-22 14:32:41,608 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-22 14:32:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-22 14:32:41,608 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-22 14:32:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-22 14:32:41,608 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_mode [2021-12-22 14:32:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_mode [2021-12-22 14:32:41,609 INFO L130 BoogieDeclarations]: Found specification of procedure rx_get_frame [2021-12-22 14:32:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_get_frame [2021-12-22 14:32:41,609 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2021-12-22 14:32:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2021-12-22 14:32:41,609 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-22 14:32:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-22 14:32:41,609 INFO L130 BoogieDeclarations]: Found specification of procedure send_xchar [2021-12-22 14:32:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure send_xchar [2021-12-22 14:32:41,609 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-22 14:32:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-22 14:32:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget [2021-12-22 14:32:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget [2021-12-22 14:32:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2021-12-22 14:32:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2021-12-22 14:32:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg16 [2021-12-22 14:32:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg16 [2021-12-22 14:32:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-22 14:32:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-22 14:32:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure get_signals [2021-12-22 14:32:41,611 INFO L138 BoogieDeclarations]: Found implementation of procedure get_signals [2021-12-22 14:32:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 14:32:41,611 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 14:32:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:32:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-22 14:32:41,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-22 14:32:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure rx_start [2021-12-22 14:32:41,611 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_start [2021-12-22 14:32:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block [2021-12-22 14:32:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block [2021-12-22 14:32:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure sanity_check [2021-12-22 14:32:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure sanity_check [2021-12-22 14:32:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:32:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:32:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure read_status_reg [2021-12-22 14:32:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure read_status_reg [2021-12-22 14:32:42,300 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:32:42,303 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:33:09,208 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:33:09,232 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:33:09,232 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:33:09,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:33:09 BoogieIcfgContainer [2021-12-22 14:33:09,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:33:09,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:33:09,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:33:09,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:33:09,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:32:37" (1/3) ... [2021-12-22 14:33:09,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2ad93a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:33:09, skipping insertion in model container [2021-12-22 14:33:09,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:32:40" (2/3) ... [2021-12-22 14:33:09,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2ad93a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:33:09, skipping insertion in model container [2021-12-22 14:33:09,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:33:09" (3/3) ... [2021-12-22 14:33:09,247 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2021-12-22 14:33:09,252 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:33:09,252 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:33:09,300 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:33:09,312 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 [2021-12-22 14:33:09,312 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:33:09,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 2807 states, 1985 states have (on average 1.418639798488665) internal successors, (2816), 2042 states have internal predecessors, (2816), 710 states have call successors, (710), 110 states have call predecessors, (710), 110 states have return successors, (710), 704 states have call predecessors, (710), 710 states have call successors, (710) [2021-12-22 14:33:09,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-22 14:33:09,383 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:09,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:33:09,384 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:09,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:09,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1191751299, now seen corresponding path program 1 times [2021-12-22 14:33:09,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:09,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349826580] [2021-12-22 14:33:09,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:09,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:09,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:09,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:09,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349826580] [2021-12-22 14:33:09,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349826580] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:09,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:09,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:33:09,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400204703] [2021-12-22 14:33:09,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:09,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:33:09,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:09,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:33:09,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:33:09,995 INFO L87 Difference]: Start difference. First operand has 2807 states, 1985 states have (on average 1.418639798488665) internal successors, (2816), 2042 states have internal predecessors, (2816), 710 states have call successors, (710), 110 states have call predecessors, (710), 110 states have return successors, (710), 704 states have call predecessors, (710), 710 states have call successors, (710) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 14:33:10,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:10,463 INFO L93 Difference]: Finished difference Result 5608 states and 8514 transitions. [2021-12-22 14:33:10,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:33:10,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-12-22 14:33:10,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:10,523 INFO L225 Difference]: With dead ends: 5608 [2021-12-22 14:33:10,523 INFO L226 Difference]: Without dead ends: 2800 [2021-12-22 14:33:10,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:33:10,546 INFO L933 BasicCegarLoop]: 4224 mSDtfsCounter, 4207 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4207 SdHoareTripleChecker+Valid, 4224 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:10,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4207 Valid, 4224 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 14:33:10,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2021-12-22 14:33:10,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 2800. [2021-12-22 14:33:10,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2800 states, 1981 states have (on average 1.4174659262998486) internal successors, (2808), 2035 states have internal predecessors, (2808), 709 states have call successors, (709), 110 states have call predecessors, (709), 109 states have return successors, (704), 698 states have call predecessors, (704), 704 states have call successors, (704) [2021-12-22 14:33:10,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2800 states to 2800 states and 4221 transitions. [2021-12-22 14:33:10,798 INFO L78 Accepts]: Start accepts. Automaton has 2800 states and 4221 transitions. Word has length 21 [2021-12-22 14:33:10,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:10,798 INFO L470 AbstractCegarLoop]: Abstraction has 2800 states and 4221 transitions. [2021-12-22 14:33:10,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 14:33:10,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2800 states and 4221 transitions. [2021-12-22 14:33:10,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-22 14:33:10,801 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:10,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:33:10,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:33:10,801 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:10,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:10,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1711631940, now seen corresponding path program 1 times [2021-12-22 14:33:10,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:10,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514253156] [2021-12-22 14:33:10,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:10,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:10,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:10,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:10,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514253156] [2021-12-22 14:33:10,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514253156] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:10,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:10,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:33:10,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773767949] [2021-12-22 14:33:10,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:10,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:33:10,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:10,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:33:10,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:33:10,900 INFO L87 Difference]: Start difference. First operand 2800 states and 4221 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 14:33:10,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:10,994 INFO L93 Difference]: Finished difference Result 2802 states and 4222 transitions. [2021-12-22 14:33:10,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:33:10,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-22 14:33:10,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:11,008 INFO L225 Difference]: With dead ends: 2802 [2021-12-22 14:33:11,008 INFO L226 Difference]: Without dead ends: 2799 [2021-12-22 14:33:11,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:33:11,010 INFO L933 BasicCegarLoop]: 4218 mSDtfsCounter, 4200 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4200 SdHoareTripleChecker+Valid, 4218 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:11,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4200 Valid, 4218 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:33:11,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2021-12-22 14:33:11,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2799. [2021-12-22 14:33:11,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 1981 states have (on average 1.4169611307420495) internal successors, (2807), 2034 states have internal predecessors, (2807), 708 states have call successors, (708), 110 states have call predecessors, (708), 109 states have return successors, (704), 698 states have call predecessors, (704), 704 states have call successors, (704) [2021-12-22 14:33:11,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 4219 transitions. [2021-12-22 14:33:11,088 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 4219 transitions. Word has length 22 [2021-12-22 14:33:11,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:11,088 INFO L470 AbstractCegarLoop]: Abstraction has 2799 states and 4219 transitions. [2021-12-22 14:33:11,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 14:33:11,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 4219 transitions. [2021-12-22 14:33:11,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-22 14:33:11,090 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:11,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:33:11,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:33:11,090 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:11,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:11,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1522194266, now seen corresponding path program 1 times [2021-12-22 14:33:11,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:11,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520157961] [2021-12-22 14:33:11,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:11,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:11,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:11,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:11,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520157961] [2021-12-22 14:33:11,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520157961] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:11,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:11,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:33:11,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672246146] [2021-12-22 14:33:11,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:11,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:33:11,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:11,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:33:11,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:33:11,192 INFO L87 Difference]: Start difference. First operand 2799 states and 4219 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 14:33:11,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:11,295 INFO L93 Difference]: Finished difference Result 2801 states and 4220 transitions. [2021-12-22 14:33:11,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:33:11,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-22 14:33:11,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:11,313 INFO L225 Difference]: With dead ends: 2801 [2021-12-22 14:33:11,313 INFO L226 Difference]: Without dead ends: 2798 [2021-12-22 14:33:11,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:33:11,320 INFO L933 BasicCegarLoop]: 4216 mSDtfsCounter, 4197 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4197 SdHoareTripleChecker+Valid, 4216 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:11,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4197 Valid, 4216 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:33:11,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2021-12-22 14:33:11,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2021-12-22 14:33:11,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 1981 states have (on average 1.4164563351842503) internal successors, (2806), 2033 states have internal predecessors, (2806), 707 states have call successors, (707), 110 states have call predecessors, (707), 109 states have return successors, (704), 698 states have call predecessors, (704), 704 states have call successors, (704) [2021-12-22 14:33:11,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4217 transitions. [2021-12-22 14:33:11,418 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4217 transitions. Word has length 23 [2021-12-22 14:33:11,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:11,418 INFO L470 AbstractCegarLoop]: Abstraction has 2798 states and 4217 transitions. [2021-12-22 14:33:11,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 14:33:11,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4217 transitions. [2021-12-22 14:33:11,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-22 14:33:11,421 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:11,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:33:11,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:33:11,422 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:11,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:11,423 INFO L85 PathProgramCache]: Analyzing trace with hash 55411199, now seen corresponding path program 1 times [2021-12-22 14:33:11,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:11,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34779587] [2021-12-22 14:33:11,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:11,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:11,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:11,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:11,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34779587] [2021-12-22 14:33:11,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34779587] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:11,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:11,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:33:11,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913102237] [2021-12-22 14:33:11,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:11,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:33:11,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:11,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:33:11,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:33:11,556 INFO L87 Difference]: Start difference. First operand 2798 states and 4217 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 14:33:11,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:11,678 INFO L93 Difference]: Finished difference Result 3310 states and 4949 transitions. [2021-12-22 14:33:11,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:33:11,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-22 14:33:11,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:11,698 INFO L225 Difference]: With dead ends: 3310 [2021-12-22 14:33:11,698 INFO L226 Difference]: Without dead ends: 3299 [2021-12-22 14:33:11,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:33:11,708 INFO L933 BasicCegarLoop]: 4392 mSDtfsCounter, 4101 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4101 SdHoareTripleChecker+Valid, 5210 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:11,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4101 Valid, 5210 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:33:11,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2021-12-22 14:33:11,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 3299. [2021-12-22 14:33:11,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3299 states, 2310 states have (on average 1.4086580086580087) internal successors, (3254), 2371 states have internal predecessors, (3254), 841 states have call successors, (841), 148 states have call predecessors, (841), 147 states have return successors, (840), 832 states have call predecessors, (840), 840 states have call successors, (840) [2021-12-22 14:33:11,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 4935 transitions. [2021-12-22 14:33:11,846 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 4935 transitions. Word has length 24 [2021-12-22 14:33:11,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:11,846 INFO L470 AbstractCegarLoop]: Abstraction has 3299 states and 4935 transitions. [2021-12-22 14:33:11,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 14:33:11,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 4935 transitions. [2021-12-22 14:33:11,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-22 14:33:11,856 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:11,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:33:11,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:33:11,857 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:11,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:11,858 INFO L85 PathProgramCache]: Analyzing trace with hash 2055295418, now seen corresponding path program 1 times [2021-12-22 14:33:11,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:11,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873895678] [2021-12-22 14:33:11,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:11,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:12,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 14:33:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:12,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 14:33:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:12,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-22 14:33:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:12,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 14:33:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:12,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:33:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:12,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:12,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:12,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873895678] [2021-12-22 14:33:12,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873895678] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:12,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:12,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:33:12,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747082152] [2021-12-22 14:33:12,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:12,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:33:12,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:12,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:33:12,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:33:12,049 INFO L87 Difference]: Start difference. First operand 3299 states and 4935 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-22 14:33:14,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:16,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:21,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:21,061 INFO L93 Difference]: Finished difference Result 8135 states and 12118 transitions. [2021-12-22 14:33:21,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:33:21,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2021-12-22 14:33:21,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:21,088 INFO L225 Difference]: With dead ends: 8135 [2021-12-22 14:33:21,088 INFO L226 Difference]: Without dead ends: 4839 [2021-12-22 14:33:21,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:33:21,104 INFO L933 BasicCegarLoop]: 4457 mSDtfsCounter, 3878 mSDsluCounter, 3193 mSDsCounter, 0 mSdLazyCounter, 3160 mSolverCounterSat, 1769 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4412 SdHoareTripleChecker+Valid, 7650 SdHoareTripleChecker+Invalid, 4931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1769 IncrementalHoareTripleChecker+Valid, 3160 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:21,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4412 Valid, 7650 Invalid, 4931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1769 Valid, 3160 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2021-12-22 14:33:21,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4839 states. [2021-12-22 14:33:21,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4839 to 4832. [2021-12-22 14:33:21,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4832 states, 3397 states have (on average 1.3979982337356491) internal successors, (4749), 3480 states have internal predecessors, (4749), 1211 states have call successors, (1211), 224 states have call predecessors, (1211), 223 states have return successors, (1210), 1199 states have call predecessors, (1210), 1210 states have call successors, (1210) [2021-12-22 14:33:21,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4832 states to 4832 states and 7170 transitions. [2021-12-22 14:33:21,258 INFO L78 Accepts]: Start accepts. Automaton has 4832 states and 7170 transitions. Word has length 64 [2021-12-22 14:33:21,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:21,258 INFO L470 AbstractCegarLoop]: Abstraction has 4832 states and 7170 transitions. [2021-12-22 14:33:21,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-22 14:33:21,258 INFO L276 IsEmpty]: Start isEmpty. Operand 4832 states and 7170 transitions. [2021-12-22 14:33:21,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-22 14:33:21,266 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:21,267 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:33:21,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 14:33:21,267 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:21,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:21,268 INFO L85 PathProgramCache]: Analyzing trace with hash 2068285400, now seen corresponding path program 1 times [2021-12-22 14:33:21,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:21,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315955804] [2021-12-22 14:33:21,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:21,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:21,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 14:33:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:21,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 14:33:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:21,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 14:33:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:21,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 14:33:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:21,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:33:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:21,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:21,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:21,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315955804] [2021-12-22 14:33:21,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315955804] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:21,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:21,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:33:21,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218215868] [2021-12-22 14:33:21,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:21,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:33:21,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:21,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:33:21,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:33:21,459 INFO L87 Difference]: Start difference. First operand 4832 states and 7170 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-22 14:33:24,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:26,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:33:31,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:31,071 INFO L93 Difference]: Finished difference Result 12517 states and 18605 transitions. [2021-12-22 14:33:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:33:31,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2021-12-22 14:33:31,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:31,117 INFO L225 Difference]: With dead ends: 12517 [2021-12-22 14:33:31,117 INFO L226 Difference]: Without dead ends: 7688 [2021-12-22 14:33:31,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:33:31,137 INFO L933 BasicCegarLoop]: 5476 mSDtfsCounter, 5093 mSDsluCounter, 3569 mSDsCounter, 0 mSdLazyCounter, 3510 mSolverCounterSat, 2438 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5666 SdHoareTripleChecker+Valid, 9045 SdHoareTripleChecker+Invalid, 5950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2438 IncrementalHoareTripleChecker+Valid, 3510 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:31,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5666 Valid, 9045 Invalid, 5950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2438 Valid, 3510 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2021-12-22 14:33:31,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7688 states. [2021-12-22 14:33:31,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7688 to 7671. [2021-12-22 14:33:31,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7671 states, 5408 states have (on average 1.3903476331360947) internal successors, (7519), 5546 states have internal predecessors, (7519), 1901 states have call successors, (1901), 362 states have call predecessors, (1901), 361 states have return successors, (1900), 1881 states have call predecessors, (1900), 1900 states have call successors, (1900) [2021-12-22 14:33:31,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7671 states to 7671 states and 11320 transitions. [2021-12-22 14:33:31,380 INFO L78 Accepts]: Start accepts. Automaton has 7671 states and 11320 transitions. Word has length 81 [2021-12-22 14:33:31,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:31,381 INFO L470 AbstractCegarLoop]: Abstraction has 7671 states and 11320 transitions. [2021-12-22 14:33:31,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-22 14:33:31,381 INFO L276 IsEmpty]: Start isEmpty. Operand 7671 states and 11320 transitions. [2021-12-22 14:33:31,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-22 14:33:31,390 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:31,390 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:33:31,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 14:33:31,390 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:31,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:31,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1834541467, now seen corresponding path program 1 times [2021-12-22 14:33:31,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:31,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629185699] [2021-12-22 14:33:31,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:31,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:31,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:33:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:31,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:33:31,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:31,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:33:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:31,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 14:33:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:31,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:33:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:31,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-22 14:33:31,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:31,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629185699] [2021-12-22 14:33:31,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629185699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:31,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:33:31,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:33:31,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605118484] [2021-12-22 14:33:31,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:31,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:33:31,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:31,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:33:31,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:33:31,670 INFO L87 Difference]: Start difference. First operand 7671 states and 11320 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-22 14:33:33,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:33,781 INFO L93 Difference]: Finished difference Result 15281 states and 22856 transitions. [2021-12-22 14:33:33,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 14:33:33,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 78 [2021-12-22 14:33:33,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:33,842 INFO L225 Difference]: With dead ends: 15281 [2021-12-22 14:33:33,842 INFO L226 Difference]: Without dead ends: 7613 [2021-12-22 14:33:33,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:33:33,874 INFO L933 BasicCegarLoop]: 3596 mSDtfsCounter, 4606 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 2094 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4855 SdHoareTripleChecker+Valid, 4633 SdHoareTripleChecker+Invalid, 2879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2094 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:33,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4855 Valid, 4633 Invalid, 2879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2094 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-22 14:33:33,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7613 states. [2021-12-22 14:33:34,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7613 to 7599. [2021-12-22 14:33:34,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7599 states, 5345 states have (on average 1.362020579981291) internal successors, (7280), 5480 states have internal predecessors, (7280), 1895 states have call successors, (1895), 359 states have call predecessors, (1895), 358 states have return successors, (1894), 1875 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-22 14:33:34,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7599 states to 7599 states and 11069 transitions. [2021-12-22 14:33:34,111 INFO L78 Accepts]: Start accepts. Automaton has 7599 states and 11069 transitions. Word has length 78 [2021-12-22 14:33:34,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:34,113 INFO L470 AbstractCegarLoop]: Abstraction has 7599 states and 11069 transitions. [2021-12-22 14:33:34,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-22 14:33:34,113 INFO L276 IsEmpty]: Start isEmpty. Operand 7599 states and 11069 transitions. [2021-12-22 14:33:34,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-22 14:33:34,120 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:34,120 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:33:34,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 14:33:34,120 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:34,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:34,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1410894745, now seen corresponding path program 1 times [2021-12-22 14:33:34,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:34,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425358744] [2021-12-22 14:33:34,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:34,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:34,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:33:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:34,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:33:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:34,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:33:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:34,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 14:33:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:34,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:33:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:34,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:34,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:34,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425358744] [2021-12-22 14:33:34,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425358744] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:33:34,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715395270] [2021-12-22 14:33:34,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:34,274 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:33:34,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:33:34,303 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:33:34,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 14:33:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:35,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 2846 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-22 14:33:35,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:33:35,392 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:35,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:33:35,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715395270] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:35,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:33:35,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2021-12-22 14:33:35,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294937087] [2021-12-22 14:33:35,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:35,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:33:35,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:35,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:33:35,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:33:35,393 INFO L87 Difference]: Start difference. First operand 7599 states and 11069 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-22 14:33:35,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:35,604 INFO L93 Difference]: Finished difference Result 15201 states and 22141 transitions. [2021-12-22 14:33:35,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 14:33:35,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 78 [2021-12-22 14:33:35,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:35,636 INFO L225 Difference]: With dead ends: 15201 [2021-12-22 14:33:35,636 INFO L226 Difference]: Without dead ends: 7599 [2021-12-22 14:33:35,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-22 14:33:35,658 INFO L933 BasicCegarLoop]: 4106 mSDtfsCounter, 1 mSDsluCounter, 8204 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 12310 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:35,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 12310 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 14:33:35,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7599 states. [2021-12-22 14:33:35,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7599 to 7599. [2021-12-22 14:33:35,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7599 states, 5345 states have (on average 1.3614593077642656) internal successors, (7277), 5480 states have internal predecessors, (7277), 1895 states have call successors, (1895), 359 states have call predecessors, (1895), 358 states have return successors, (1894), 1875 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-22 14:33:35,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7599 states to 7599 states and 11066 transitions. [2021-12-22 14:33:35,882 INFO L78 Accepts]: Start accepts. Automaton has 7599 states and 11066 transitions. Word has length 78 [2021-12-22 14:33:35,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:35,882 INFO L470 AbstractCegarLoop]: Abstraction has 7599 states and 11066 transitions. [2021-12-22 14:33:35,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-22 14:33:35,882 INFO L276 IsEmpty]: Start isEmpty. Operand 7599 states and 11066 transitions. [2021-12-22 14:33:35,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-22 14:33:35,890 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:35,891 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:33:35,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-22 14:33:36,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:33:36,106 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:36,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:36,106 INFO L85 PathProgramCache]: Analyzing trace with hash 2120349762, now seen corresponding path program 1 times [2021-12-22 14:33:36,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:36,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995927770] [2021-12-22 14:33:36,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:36,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:36,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:33:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:36,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-22 14:33:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:36,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 14:33:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:36,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 14:33:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:36,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 14:33:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:36,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:33:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:36,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:33:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:36,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:36,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:36,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995927770] [2021-12-22 14:33:36,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995927770] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:33:36,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999672813] [2021-12-22 14:33:36,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:36,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:33:36,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:33:36,872 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:33:36,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 14:33:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:38,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 7165 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-22 14:33:38,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:33:39,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-22 14:33:39,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:33:39,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999672813] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:33:39,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:33:39,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2021-12-22 14:33:39,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384093112] [2021-12-22 14:33:39,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:33:39,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:33:39,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:33:39,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:33:39,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-22 14:33:39,134 INFO L87 Difference]: Start difference. First operand 7599 states and 11066 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-22 14:33:39,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:33:39,721 INFO L93 Difference]: Finished difference Result 14871 states and 21622 transitions. [2021-12-22 14:33:39,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 14:33:39,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 97 [2021-12-22 14:33:39,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:33:39,751 INFO L225 Difference]: With dead ends: 14871 [2021-12-22 14:33:39,751 INFO L226 Difference]: Without dead ends: 7275 [2021-12-22 14:33:39,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:33:39,771 INFO L933 BasicCegarLoop]: 3764 mSDtfsCounter, 4121 mSDsluCounter, 10896 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4126 SdHoareTripleChecker+Valid, 14660 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:33:39,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4126 Valid, 14660 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 14:33:39,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7275 states. [2021-12-22 14:33:39,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7275 to 7275. [2021-12-22 14:33:39,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7275 states, 5097 states have (on average 1.3562880125564056) internal successors, (6913), 5226 states have internal predecessors, (6913), 1819 states have call successors, (1819), 359 states have call predecessors, (1819), 358 states have return successors, (1818), 1801 states have call predecessors, (1818), 1818 states have call successors, (1818) [2021-12-22 14:33:39,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7275 states to 7275 states and 10550 transitions. [2021-12-22 14:33:39,990 INFO L78 Accepts]: Start accepts. Automaton has 7275 states and 10550 transitions. Word has length 97 [2021-12-22 14:33:39,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:33:39,991 INFO L470 AbstractCegarLoop]: Abstraction has 7275 states and 10550 transitions. [2021-12-22 14:33:39,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-22 14:33:39,991 INFO L276 IsEmpty]: Start isEmpty. Operand 7275 states and 10550 transitions. [2021-12-22 14:33:40,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-22 14:33:40,000 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:33:40,000 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:33:40,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 14:33:40,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-22 14:33:40,223 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:33:40,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:33:40,224 INFO L85 PathProgramCache]: Analyzing trace with hash -556652774, now seen corresponding path program 1 times [2021-12-22 14:33:40,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:33:40,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723313463] [2021-12-22 14:33:40,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:40,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:33:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:40,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:33:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:40,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-22 14:33:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:40,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 14:33:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:40,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-22 14:33:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:40,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:33:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:40,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 14:33:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:40,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:33:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:33:40,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:33:40,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:33:40,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723313463] [2021-12-22 14:33:40,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723313463] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:33:40,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745841560] [2021-12-22 14:33:40,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:33:40,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:33:40,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:33:40,796 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:33:40,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process