./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:06:45,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:06:45,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:06:45,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:06:45,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:06:45,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:06:45,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:06:45,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:06:45,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:06:45,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:06:45,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:06:45,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:06:45,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:06:45,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:06:45,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:06:45,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:06:45,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:06:45,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:06:45,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:06:45,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:06:45,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:06:45,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:06:45,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:06:45,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:06:45,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:06:45,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:06:45,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:06:45,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:06:45,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:06:45,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:06:45,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:06:45,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:06:45,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:06:45,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:06:45,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:06:45,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:06:45,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:06:45,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:06:45,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:06:45,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:06:45,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:06:45,649 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:06:45,679 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:06:45,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:06:45,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:06:45,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:06:45,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:06:45,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:06:45,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:06:45,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:06:45,683 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:06:45,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:06:45,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:06:45,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:06:45,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:06:45,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:06:45,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:06:45,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:06:45,684 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:06:45,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:06:45,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:06:45,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:06:45,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:06:45,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:06:45,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:06:45,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:06:45,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:06:45,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:06:45,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:06:45,686 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:06:45,686 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:06:45,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:06:45,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 [2021-12-28 04:06:45,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:06:45,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:06:46,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:06:46,002 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:06:46,002 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:06:46,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2021-12-28 04:06:46,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4423c8607/7c5bb1c2cbc94ae2a84b9cb9738c1b2a/FLAGe2d99f562 [2021-12-28 04:06:46,739 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:06:46,740 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2021-12-28 04:06:46,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4423c8607/7c5bb1c2cbc94ae2a84b9cb9738c1b2a/FLAGe2d99f562 [2021-12-28 04:06:46,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4423c8607/7c5bb1c2cbc94ae2a84b9cb9738c1b2a [2021-12-28 04:06:46,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:06:46,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:06:46,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:06:46,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:06:46,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:06:46,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:06:46" (1/1) ... [2021-12-28 04:06:46,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2da0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:06:46, skipping insertion in model container [2021-12-28 04:06:46,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:06:46" (1/1) ... [2021-12-28 04:06:46,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:06:46,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:06:47,431 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-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2021-12-28 04:06:49,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:06:49,293 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:06:49,330 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-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2021-12-28 04:06:49,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:06:49,791 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:06:49,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:06:49 WrapperNode [2021-12-28 04:06:49,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:06:49,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:06:49,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:06:49,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:06:49,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:06:49" (1/1) ... [2021-12-28 04:06:49,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:06:49" (1/1) ... [2021-12-28 04:06:50,129 INFO L137 Inliner]: procedures = 414, calls = 5134, calls flagged for inlining = 149, calls inlined = 134, statements flattened = 10048 [2021-12-28 04:06:50,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:06:50,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:06:50,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:06:50,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:06:50,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:06:49" (1/1) ... [2021-12-28 04:06:50,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:06:49" (1/1) ... [2021-12-28 04:06:50,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:06:49" (1/1) ... [2021-12-28 04:06:50,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:06:49" (1/1) ... [2021-12-28 04:06:50,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:06:49" (1/1) ... [2021-12-28 04:06:50,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:06:49" (1/1) ... [2021-12-28 04:06:50,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:06:49" (1/1) ... [2021-12-28 04:06:50,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:06:50,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:06:50,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:06:50,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:06:50,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:06:49" (1/1) ... [2021-12-28 04:06:50,574 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:06:50,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:06:50,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 04:06:50,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 04:06:50,622 INFO L130 BoogieDeclarations]: Found specification of procedure timer_open [2021-12-28 04:06:50,623 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_open [2021-12-28 04:06:50,623 INFO L130 BoogieDeclarations]: Found specification of procedure poll_def_tmr [2021-12-28 04:06:50,623 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_def_tmr [2021-12-28 04:06:50,623 INFO L130 BoogieDeclarations]: Found specification of procedure timer_event [2021-12-28 04:06:50,623 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_event [2021-12-28 04:06:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_channels [2021-12-28 04:06:50,624 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_channels [2021-12-28 04:06:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-28 04:06:50,624 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-28 04:06:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:06:50,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:06:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_output [2021-12-28 04:06:50,625 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_output [2021-12-28 04:06:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~TO~int [2021-12-28 04:06:50,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~TO~int [2021-12-28 04:06:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure seq_input_event [2021-12-28 04:06:50,625 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_input_event [2021-12-28 04:06:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_release [2021-12-28 04:06:50,625 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_release [2021-12-28 04:06:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure local_start_dma [2021-12-28 04:06:50,625 INFO L138 BoogieDeclarations]: Found implementation of procedure local_start_dma [2021-12-28 04:06:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure translate_bytes [2021-12-28 04:06:50,626 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_bytes [2021-12-28 04:06:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-12-28 04:06:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure seq_copy_to_input [2021-12-28 04:06:50,626 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_copy_to_input [2021-12-28 04:06:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 04:06:50,626 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 04:06:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_sync [2021-12-28 04:06:50,627 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_sync [2021-12-28 04:06:50,627 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~$Pointer$~TO~int [2021-12-28 04:06:50,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~$Pointer$~TO~int [2021-12-28 04:06:50,627 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_launch_output [2021-12-28 04:06:50,627 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_launch_output [2021-12-28 04:06:50,627 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-28 04:06:50,627 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-28 04:06:50,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_soundcard_mutex [2021-12-28 04:06:50,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_soundcard_mutex [2021-12-28 04:06:50,628 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:06:50,628 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:06:50,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:06:50,628 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_space_in_queue [2021-12-28 04:06:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_space_in_queue [2021-12-28 04:06:50,629 INFO L130 BoogieDeclarations]: Found specification of procedure timer_get_time [2021-12-28 04:06:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_get_time [2021-12-28 04:06:50,629 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dma [2021-12-28 04:06:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dma [2021-12-28 04:06:50,629 INFO L130 BoogieDeclarations]: Found specification of procedure timer_ioctl [2021-12-28 04:06:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_ioctl [2021-12-28 04:06:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 04:06:50,630 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 04:06:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-12-28 04:06:50,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-12-28 04:06:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:06:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-28 04:06:50,631 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-28 04:06:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mixer_ioctl [2021-12-28 04:06:50,632 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mixer_ioctl [2021-12-28 04:06:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:06:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure midi_poll [2021-12-28 04:06:50,632 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_poll [2021-12-28 04:06:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_arm [2021-12-28 04:06:50,633 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_arm [2021-12-28 04:06:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure dma_subdivide [2021-12-28 04:06:50,633 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_subdivide [2021-12-28 04:06:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:06:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_activate_recording [2021-12-28 04:06:50,633 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_activate_recording [2021-12-28 04:06:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 04:06:50,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 04:06:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-12-28 04:06:50,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-12-28 04:06:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 04:06:50,634 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 04:06:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sync [2021-12-28 04:06:50,635 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sync [2021-12-28 04:06:50,635 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_bits [2021-12-28 04:06:50,635 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_bits [2021-12-28 04:06:50,635 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sound_special [2021-12-28 04:06:50,635 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sound_special [2021-12-28 04:06:50,635 INFO L130 BoogieDeclarations]: Found specification of procedure close_dmap [2021-12-28 04:06:50,635 INFO L138 BoogieDeclarations]: Found implementation of procedure close_dmap [2021-12-28 04:06:50,635 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_close [2021-12-28 04:06:50,636 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_close [2021-12-28 04:06:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-12-28 04:06:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-28 04:06:50,636 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-28 04:06:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-28 04:06:50,636 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-28 04:06:50,637 INFO L130 BoogieDeclarations]: Found specification of procedure timer_arm [2021-12-28 04:06:50,637 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_arm [2021-12-28 04:06:50,637 INFO L130 BoogieDeclarations]: Found specification of procedure register_sound_special [2021-12-28 04:06:50,637 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sound_special [2021-12-28 04:06:50,637 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mmap [2021-12-28 04:06:50,637 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mmap [2021-12-28 04:06:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-12-28 04:06:50,638 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-12-28 04:06:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:06:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure claim_dma_lock [2021-12-28 04:06:50,639 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_dma_lock [2021-12-28 04:06:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure timer_close [2021-12-28 04:06:50,639 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_close [2021-12-28 04:06:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:06:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:06:50,640 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 04:06:50,640 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_input [2021-12-28 04:06:50,640 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_input [2021-12-28 04:06:50,640 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on_timeout [2021-12-28 04:06:50,640 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on_timeout [2021-12-28 04:06:50,640 INFO L130 BoogieDeclarations]: Found specification of procedure set_format [2021-12-28 04:06:50,640 INFO L138 BoogieDeclarations]: Found implementation of procedure set_format [2021-12-28 04:06:50,641 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_reset [2021-12-28 04:06:50,641 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_reset [2021-12-28 04:06:50,641 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2021-12-28 04:06:50,641 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2021-12-28 04:06:50,641 INFO L130 BoogieDeclarations]: Found specification of procedure seq_reset [2021-12-28 04:06:50,641 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_reset [2021-12-28 04:06:50,642 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2021-12-28 04:06:50,642 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2021-12-28 04:06:50,706 INFO L130 BoogieDeclarations]: Found specification of procedure seq_drain_midi_queues [2021-12-28 04:06:50,706 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_drain_midi_queues [2021-12-28 04:06:50,706 INFO L130 BoogieDeclarations]: Found specification of procedure dma_ioctl [2021-12-28 04:06:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_ioctl [2021-12-28 04:06:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_soundcard_mutex [2021-12-28 04:06:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_soundcard_mutex [2021-12-28 04:06:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2021-12-28 04:06:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2021-12-28 04:06:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~X~int~TO~int [2021-12-28 04:06:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~X~int~TO~int [2021-12-28 04:06:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~VOID [2021-12-28 04:06:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~VOID [2021-12-28 04:06:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-28 04:06:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-28 04:06:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2021-12-28 04:06:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2021-12-28 04:06:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-28 04:06:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-28 04:06:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:06:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:06:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure seq_startplay [2021-12-28 04:06:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_startplay [2021-12-28 04:06:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dma_ff [2021-12-28 04:06:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dma_ff [2021-12-28 04:06:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~TO~VOID [2021-12-28 04:06:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~TO~VOID [2021-12-28 04:06:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-28 04:06:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-28 04:06:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:06:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:06:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:06:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:06:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:06:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:06:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-28 04:06:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-28 04:06:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-28 04:06:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2021-12-28 04:06:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2021-12-28 04:06:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure translate_mode [2021-12-28 04:06:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_mode [2021-12-28 04:06:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get___0 [2021-12-28 04:06:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get___0 [2021-12-28 04:06:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_move_wrpointer [2021-12-28 04:06:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_move_wrpointer [2021-12-28 04:06:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 04:06:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 04:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset [2021-12-28 04:06:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset [2021-12-28 04:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:06:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure sound_stop_timer [2021-12-28 04:06:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_stop_timer [2021-12-28 04:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks___0 [2021-12-28 04:06:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks___0 [2021-12-28 04:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:06:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:06:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-28 04:06:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-28 04:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-28 04:06:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-28 04:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset___0 [2021-12-28 04:06:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset___0 [2021-12-28 04:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~X~int~TO~VOID [2021-12-28 04:06:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~X~int~TO~VOID [2021-12-28 04:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2021-12-28 04:06:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2021-12-28 04:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2021-12-28 04:06:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2021-12-28 04:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure sound_free_dmap [2021-12-28 04:06:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_free_dmap [2021-12-28 04:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-28 04:06:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-28 04:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-28 04:06:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-28 04:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_timer [2021-12-28 04:06:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_timer [2021-12-28 04:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure midi_outc___0 [2021-12-28 04:06:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_outc___0 [2021-12-28 04:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-28 04:06:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-28 04:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~int [2021-12-28 04:06:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~int [2021-12-28 04:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure dmabuf_timeout [2021-12-28 04:06:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure dmabuf_timeout [2021-12-28 04:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info___0 [2021-12-28 04:06:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info___0 [2021-12-28 04:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2021-12-28 04:06:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2021-12-28 04:06:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-28 04:06:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-28 04:06:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure sound_start_dma [2021-12-28 04:06:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_start_dma [2021-12-28 04:06:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_event [2021-12-28 04:06:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_event [2021-12-28 04:06:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 04:06:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 04:06:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-28 04:06:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-28 04:06:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_open [2021-12-28 04:06:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_open [2021-12-28 04:06:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure do_midi_msg [2021-12-28 04:06:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure do_midi_msg [2021-12-28 04:06:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2021-12-28 04:06:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2021-12-28 04:06:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 04:06:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 04:06:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2021-12-28 04:06:50,733 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2021-12-28 04:06:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_dmap [2021-12-28 04:06:50,733 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_dmap [2021-12-28 04:06:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_fragment [2021-12-28 04:06:50,733 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_fragment [2021-12-28 04:06:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_get_time [2021-12-28 04:06:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_get_time [2021-12-28 04:06:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_timer [2021-12-28 04:06:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_timer [2021-12-28 04:06:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_speed [2021-12-28 04:06:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_speed [2021-12-28 04:06:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-28 04:06:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-28 04:06:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_residue [2021-12-28 04:06:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_residue [2021-12-28 04:06:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure sync_output [2021-12-28 04:06:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_output [2021-12-28 04:06:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:06:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:06:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:06:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-12-28 04:06:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-12-28 04:06:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure open_dmap [2021-12-28 04:06:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dmap [2021-12-28 04:06:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure release_dma_lock [2021-12-28 04:06:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure release_dma_lock [2021-12-28 04:06:50,734 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-12-28 04:06:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-12-28 04:06:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure sound_poll [2021-12-28 04:06:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_poll [2021-12-28 04:06:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-28 04:06:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-28 04:06:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure do_sequencer_timer [2021-12-28 04:06:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure do_sequencer_timer [2021-12-28 04:06:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dma [2021-12-28 04:06:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dma [2021-12-28 04:06:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks [2021-12-28 04:06:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks [2021-12-28 04:06:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-12-28 04:06:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-12-28 04:06:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-28 04:06:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-28 04:06:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure request_sound_timer [2021-12-28 04:06:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure request_sound_timer [2021-12-28 04:06:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_get_buffer_pointer [2021-12-28 04:06:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_get_buffer_pointer [2021-12-28 04:06:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure sound_write [2021-12-28 04:06:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_write [2021-12-28 04:06:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure play_event [2021-12-28 04:06:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure play_event [2021-12-28 04:06:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure reorganize_buffers [2021-12-28 04:06:50,736 INFO L138 BoogieDeclarations]: Found implementation of procedure reorganize_buffers [2021-12-28 04:06:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 04:06:50,736 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 04:06:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-28 04:06:50,736 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-28 04:06:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:06:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_ioctl [2021-12-28 04:06:50,736 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_ioctl [2021-12-28 04:06:51,525 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:06:51,528 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:06:51,939 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:06:52,005 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume 0 != ~tmp___1~3;#res := ~ret~3; [2021-12-28 04:06:52,005 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume !(0 != ~tmp___1~3);#res := ~ret~3; [2021-12-28 04:06:52,005 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3803: havoc #t~switch115; [2021-12-28 04:06:52,005 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume #t~switch115; [2021-12-28 04:06:52,005 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume !#t~switch115;#t~switch115 := true; [2021-12-28 04:06:52,005 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume 0 != ~tmp___0~8;#res := ~ret~3; [2021-12-28 04:06:52,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume !(0 != ~tmp___0~8);#res := ~ret~3; [2021-12-28 04:06:52,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume #t~switch115; [2021-12-28 04:06:52,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume !#t~switch115;#t~switch115 := #t~switch115 || 16 == ~size; [2021-12-28 04:06:52,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume #t~switch115;#res := ~ret~3; [2021-12-28 04:06:52,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume !#t~switch115;#t~switch115 := #t~switch115 || 10 == ~size; [2021-12-28 04:06:52,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch115;#res := ~ret~3; [2021-12-28 04:06:52,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume #t~switch115;#res := ~ret~3; [2021-12-28 04:06:52,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume !#t~switch115;#t~switch115 := #t~switch115 || 8 == ~size; [2021-12-28 04:06:52,007 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3845-1: ~tmp___2~2 := #t~ret118;havoc #t~ret118;#res := (if ~tmp___2~2 % 18446744073709551616 % 4294967296 <= 2147483647 then ~tmp___2~2 % 18446744073709551616 % 4294967296 else ~tmp___2~2 % 18446744073709551616 % 4294967296 - 4294967296); [2021-12-28 04:06:52,007 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3845: SUMMARY for call #t~ret118 := copy_user_generic(~dst.base, ~dst.offset, ~src.base, ~src.offset, ~size); srcloc: null [2021-12-28 04:06:52,007 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch115;#t~switch115 := #t~switch115 || 2 == ~size; [2021-12-28 04:06:52,007 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume #t~switch115;#res := ~ret~3; [2021-12-28 04:06:52,007 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume !#t~switch115;#t~switch115 := #t~switch115 || 4 == ~size; [2021-12-28 04:06:52,007 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3835-1: assume -9223372036854775808 <= #t~ret117 && #t~ret117 <= 9223372036854775807;~tmp___1~3 := #t~ret117;havoc #t~ret117; [2021-12-28 04:06:52,007 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3835: SUMMARY for call #t~ret117 := ldv__builtin_expect((if 0 != ~ret~3 then 1 else 0), 0); srcloc: null [2021-12-28 04:06:52,007 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823-1: assume -9223372036854775808 <= #t~ret116 && #t~ret116 <= 9223372036854775807;~tmp___0~8 := #t~ret116;havoc #t~ret116; [2021-12-28 04:06:52,008 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823: SUMMARY for call #t~ret116 := ldv__builtin_expect((if 0 != ~ret~3 then 1 else 0), 0); srcloc: null [2021-12-28 04:06:52,008 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume #t~switch115; [2021-12-28 04:06:52,008 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume !#t~switch115; [2021-12-28 04:07:00,285 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3738: havoc __copy_from_user_#t~switch110#1; [2021-12-28 04:07:00,285 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3744: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-28 04:07:00,285 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3744: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 4 == __copy_from_user_~size#1; [2021-12-28 04:07:00,285 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3749: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-28 04:07:00,286 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3749: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 8 == __copy_from_user_~size#1; [2021-12-28 04:07:00,286 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3754: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-28 04:07:00,286 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3754: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 10 == __copy_from_user_~size#1; [2021-12-28 04:07:00,286 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3759: assume __copy_from_user_#t~switch110#1; [2021-12-28 04:07:00,286 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3759: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 16 == __copy_from_user_~size#1; [2021-12-28 04:07:00,286 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3763-1: assume -9223372036854775808 <= __copy_from_user_#t~ret111#1 && __copy_from_user_#t~ret111#1 <= 9223372036854775807;__copy_from_user_~tmp___0~7#1 := __copy_from_user_#t~ret111#1;havoc __copy_from_user_#t~ret111#1; [2021-12-28 04:07:00,287 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3763: SUMMARY for call __copy_from_user_#t~ret111#1 := ldv__builtin_expect((if 0 != __copy_from_user_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-12-28 04:07:00,287 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3764: assume 0 != __copy_from_user_~tmp___0~7#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-28 04:07:00,287 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3764: assume !(0 != __copy_from_user_~tmp___0~7#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-28 04:07:00,287 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume __copy_from_user_#t~switch110#1; [2021-12-28 04:07:00,287 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := true; [2021-12-28 04:07:00,287 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3776: SUMMARY for call __copy_from_user_#t~ret112#1 := ldv__builtin_expect((if 0 != __copy_from_user_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-12-28 04:07:00,287 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3776-1: assume -9223372036854775808 <= __copy_from_user_#t~ret112#1 && __copy_from_user_#t~ret112#1 <= 9223372036854775807;__copy_from_user_~tmp___1~2#1 := __copy_from_user_#t~ret112#1;havoc __copy_from_user_#t~ret112#1; [2021-12-28 04:07:00,287 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3777: assume 0 != __copy_from_user_~tmp___1~2#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-28 04:07:00,287 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3777: assume !(0 != __copy_from_user_~tmp___1~2#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-28 04:07:00,288 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume __copy_from_user_#t~switch110#1; [2021-12-28 04:07:00,288 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume !__copy_from_user_#t~switch110#1; [2021-12-28 04:07:00,288 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3786: SUMMARY for call __copy_from_user_#t~ret113#1 := copy_user_generic(__copy_from_user_~dst#1.base, __copy_from_user_~dst#1.offset, __copy_from_user_~src#1.base, __copy_from_user_~src#1.offset, __copy_from_user_~size#1); srcloc: null [2021-12-28 04:07:00,288 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L3786-1: __copy_from_user_~tmp___2~1#1 := __copy_from_user_#t~ret113#1;havoc __copy_from_user_#t~ret113#1;__copy_from_user_#res#1 := (if __copy_from_user_~tmp___2~1#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_~tmp___2~1#1 % 18446744073709551616 % 4294967296 else __copy_from_user_~tmp___2~1#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-12-28 04:07:00,288 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##704: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 2 == __copy_from_user_~size#1; [2021-12-28 04:07:00,288 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##703: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-12-28 04:07:00,344 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:07:00,368 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:07:00,368 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 04:07:00,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:07:00 BoogieIcfgContainer [2021-12-28 04:07:00,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:07:00,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:07:00,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:07:00,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:07:00,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:06:46" (1/3) ... [2021-12-28 04:07:00,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2362e842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:07:00, skipping insertion in model container [2021-12-28 04:07:00,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:06:49" (2/3) ... [2021-12-28 04:07:00,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2362e842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:07:00, skipping insertion in model container [2021-12-28 04:07:00,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:07:00" (3/3) ... [2021-12-28 04:07:00,379 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2021-12-28 04:07:00,383 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:07:00,383 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:07:00,429 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:07:00,433 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 04:07:00,433 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:07:00,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 3787 states, 2893 states have (on average 1.5074317317663326) internal successors, (4361), 2997 states have internal predecessors, (4361), 757 states have call successors, (757), 136 states have call predecessors, (757), 135 states have return successors, (749), 721 states have call predecessors, (749), 749 states have call successors, (749) [2021-12-28 04:07:00,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-28 04:07:00,485 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:07:00,486 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:07:00,486 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:07:00,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:07:00,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1066878759, now seen corresponding path program 1 times [2021-12-28 04:07:00,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:07:00,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514287088] [2021-12-28 04:07:00,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:07:00,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:07:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:00,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:07:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:00,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:07:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:00,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:07:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:00,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 04:07:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:00,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 04:07:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:00,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 04:07:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:07:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:00,965 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-28 04:07:00,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:07:00,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514287088] [2021-12-28 04:07:00,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514287088] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:07:00,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:07:00,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:07:00,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660499098] [2021-12-28 04:07:00,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:07:00,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:07:00,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:07:00,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:07:00,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:07:00,997 INFO L87 Difference]: Start difference. First operand has 3787 states, 2893 states have (on average 1.5074317317663326) internal successors, (4361), 2997 states have internal predecessors, (4361), 757 states have call successors, (757), 136 states have call predecessors, (757), 135 states have return successors, (749), 721 states have call predecessors, (749), 749 states have call successors, (749) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 04:07:11,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-28 04:07:12,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:07:12,468 INFO L93 Difference]: Finished difference Result 9183 states and 14360 transitions. [2021-12-28 04:07:12,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:07:12,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2021-12-28 04:07:12,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:07:12,515 INFO L225 Difference]: With dead ends: 9183 [2021-12-28 04:07:12,515 INFO L226 Difference]: Without dead ends: 5374 [2021-12-28 04:07:12,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:07:12,531 INFO L933 BasicCegarLoop]: 5660 mSDtfsCounter, 3984 mSDsluCounter, 6805 mSDsCounter, 0 mSdLazyCounter, 3608 mSolverCounterSat, 1369 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4286 SdHoareTripleChecker+Valid, 12465 SdHoareTripleChecker+Invalid, 4978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1369 IncrementalHoareTripleChecker+Valid, 3608 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:07:12,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4286 Valid, 12465 Invalid, 4978 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1369 Valid, 3608 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2021-12-28 04:07:12,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5374 states. [2021-12-28 04:07:12,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5374 to 4841. [2021-12-28 04:07:12,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4841 states, 3713 states have (on average 1.5025585779692971) internal successors, (5579), 3844 states have internal predecessors, (5579), 935 states have call successors, (935), 193 states have call predecessors, (935), 192 states have return successors, (931), 887 states have call predecessors, (931), 931 states have call successors, (931) [2021-12-28 04:07:12,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4841 states to 4841 states and 7445 transitions. [2021-12-28 04:07:12,778 INFO L78 Accepts]: Start accepts. Automaton has 4841 states and 7445 transitions. Word has length 57 [2021-12-28 04:07:12,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:07:12,779 INFO L470 AbstractCegarLoop]: Abstraction has 4841 states and 7445 transitions. [2021-12-28 04:07:12,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 04:07:12,779 INFO L276 IsEmpty]: Start isEmpty. Operand 4841 states and 7445 transitions. [2021-12-28 04:07:12,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-28 04:07:12,787 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:07:12,787 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:07:12,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:07:12,788 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:07:12,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:07:12,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1168157038, now seen corresponding path program 1 times [2021-12-28 04:07:12,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:07:12,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744083306] [2021-12-28 04:07:12,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:07:12,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:07:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:13,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:07:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:13,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:07:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:13,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:07:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:13,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 04:07:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:13,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 04:07:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:13,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 04:07:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:13,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:07:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:13,132 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-28 04:07:13,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:07:13,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744083306] [2021-12-28 04:07:13,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744083306] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:07:13,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:07:13,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:07:13,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113654701] [2021-12-28 04:07:13,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:07:13,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:07:13,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:07:13,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:07:13,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:07:13,137 INFO L87 Difference]: Start difference. First operand 4841 states and 7445 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 04:07:19,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:07:22,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-28 04:07:23,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:07:23,528 INFO L93 Difference]: Finished difference Result 10192 states and 15811 transitions. [2021-12-28 04:07:23,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 04:07:23,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2021-12-28 04:07:23,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:07:23,557 INFO L225 Difference]: With dead ends: 10192 [2021-12-28 04:07:23,557 INFO L226 Difference]: Without dead ends: 5366 [2021-12-28 04:07:23,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:07:23,573 INFO L933 BasicCegarLoop]: 5490 mSDtfsCounter, 6976 mSDsluCounter, 2402 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 1595 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7459 SdHoareTripleChecker+Valid, 7892 SdHoareTripleChecker+Invalid, 3369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1595 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:07:23,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7459 Valid, 7892 Invalid, 3369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1595 Valid, 1773 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2021-12-28 04:07:23,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5366 states. [2021-12-28 04:07:23,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5366 to 4841. [2021-12-28 04:07:23,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4841 states, 3713 states have (on average 1.5020199299757608) internal successors, (5577), 3844 states have internal predecessors, (5577), 935 states have call successors, (935), 193 states have call predecessors, (935), 192 states have return successors, (931), 887 states have call predecessors, (931), 931 states have call successors, (931) [2021-12-28 04:07:23,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4841 states to 4841 states and 7443 transitions. [2021-12-28 04:07:23,716 INFO L78 Accepts]: Start accepts. Automaton has 4841 states and 7443 transitions. Word has length 65 [2021-12-28 04:07:23,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:07:23,717 INFO L470 AbstractCegarLoop]: Abstraction has 4841 states and 7443 transitions. [2021-12-28 04:07:23,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 04:07:23,717 INFO L276 IsEmpty]: Start isEmpty. Operand 4841 states and 7443 transitions. [2021-12-28 04:07:23,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-28 04:07:23,719 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:07:23,719 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:07:23,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:07:23,719 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:07:23,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:07:23,720 INFO L85 PathProgramCache]: Analyzing trace with hash -420190864, now seen corresponding path program 1 times [2021-12-28 04:07:23,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:07:23,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42118263] [2021-12-28 04:07:23,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:07:23,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:07:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:23,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:07:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:23,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:07:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:23,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:07:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:23,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 04:07:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:23,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 04:07:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:23,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 04:07:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:23,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:07:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-28 04:07:23,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:07:23,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42118263] [2021-12-28 04:07:23,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42118263] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:07:23,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:07:23,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:07:23,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439860201] [2021-12-28 04:07:23,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:07:23,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:07:23,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:07:23,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:07:23,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:07:23,989 INFO L87 Difference]: Start difference. First operand 4841 states and 7443 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 04:07:29,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:07:32,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-28 04:07:33,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:07:33,395 INFO L93 Difference]: Finished difference Result 5381 states and 8398 transitions. [2021-12-28 04:07:33,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:07:33,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2021-12-28 04:07:33,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:07:33,420 INFO L225 Difference]: With dead ends: 5381 [2021-12-28 04:07:33,420 INFO L226 Difference]: Without dead ends: 5378 [2021-12-28 04:07:33,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:07:33,425 INFO L933 BasicCegarLoop]: 5504 mSDtfsCounter, 6953 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 1591 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7436 SdHoareTripleChecker+Valid, 7931 SdHoareTripleChecker+Invalid, 3375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1591 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2021-12-28 04:07:33,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7436 Valid, 7931 Invalid, 3375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1591 Valid, 1783 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2021-12-28 04:07:33,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5378 states. [2021-12-28 04:07:33,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5378 to 4851. [2021-12-28 04:07:33,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4851 states, 3721 states have (on average 1.500940607363612) internal successors, (5585), 3851 states have internal predecessors, (5585), 935 states have call successors, (935), 195 states have call predecessors, (935), 194 states have return successors, (932), 888 states have call predecessors, (932), 932 states have call successors, (932) [2021-12-28 04:07:33,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4851 states to 4851 states and 7452 transitions. [2021-12-28 04:07:33,577 INFO L78 Accepts]: Start accepts. Automaton has 4851 states and 7452 transitions. Word has length 65 [2021-12-28 04:07:33,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:07:33,578 INFO L470 AbstractCegarLoop]: Abstraction has 4851 states and 7452 transitions. [2021-12-28 04:07:33,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 04:07:33,579 INFO L276 IsEmpty]: Start isEmpty. Operand 4851 states and 7452 transitions. [2021-12-28 04:07:33,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-28 04:07:33,581 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:07:33,581 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:07:33,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:07:33,582 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:07:33,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:07:33,582 INFO L85 PathProgramCache]: Analyzing trace with hash -142231472, now seen corresponding path program 1 times [2021-12-28 04:07:33,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:07:33,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707557478] [2021-12-28 04:07:33,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:07:33,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:07:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:07:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:07:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:07:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 04:07:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 04:07:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 04:07:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:07:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,828 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-28 04:07:33,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:07:33,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707557478] [2021-12-28 04:07:33,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707557478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:07:33,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:07:33,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:07:33,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284420813] [2021-12-28 04:07:33,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:07:33,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:07:33,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:07:33,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:07:33,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:07:33,830 INFO L87 Difference]: Start difference. First operand 4851 states and 7452 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 04:07:42,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-28 04:07:44,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:07:47,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:07:47,647 INFO L93 Difference]: Finished difference Result 8450 states and 13058 transitions. [2021-12-28 04:07:47,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:07:47,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2021-12-28 04:07:47,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:07:47,691 INFO L225 Difference]: With dead ends: 8450 [2021-12-28 04:07:47,692 INFO L226 Difference]: Without dead ends: 8362 [2021-12-28 04:07:47,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:07:47,701 INFO L933 BasicCegarLoop]: 6115 mSDtfsCounter, 4725 mSDsluCounter, 6903 mSDsCounter, 0 mSdLazyCounter, 3803 mSolverCounterSat, 1643 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5078 SdHoareTripleChecker+Valid, 13018 SdHoareTripleChecker+Invalid, 5448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1643 IncrementalHoareTripleChecker+Valid, 3803 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2021-12-28 04:07:47,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5078 Valid, 13018 Invalid, 5448 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1643 Valid, 3803 Invalid, 2 Unknown, 0 Unchecked, 13.4s Time] [2021-12-28 04:07:47,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8362 states. [2021-12-28 04:07:47,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8362 to 7445. [2021-12-28 04:07:47,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7445 states, 5691 states have (on average 1.4958706729924443) internal successors, (8513), 5921 states have internal predecessors, (8513), 1423 states have call successors, (1423), 333 states have call predecessors, (1423), 330 states have return successors, (1422), 1324 states have call predecessors, (1422), 1420 states have call successors, (1422) [2021-12-28 04:07:47,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7445 states to 7445 states and 11358 transitions. [2021-12-28 04:07:47,986 INFO L78 Accepts]: Start accepts. Automaton has 7445 states and 11358 transitions. Word has length 66 [2021-12-28 04:07:47,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:07:47,987 INFO L470 AbstractCegarLoop]: Abstraction has 7445 states and 11358 transitions. [2021-12-28 04:07:47,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 04:07:47,988 INFO L276 IsEmpty]: Start isEmpty. Operand 7445 states and 11358 transitions. [2021-12-28 04:07:47,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-28 04:07:47,995 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:07:47,995 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 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] [2021-12-28 04:07:47,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:07:47,995 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:07:47,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:07:47,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1797917777, now seen corresponding path program 1 times [2021-12-28 04:07:47,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:07:47,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845706199] [2021-12-28 04:07:47,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:07:47,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:07:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:48,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:07:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:48,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:07:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:48,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:07:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:48,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 04:07:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:48,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 04:07:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:48,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 04:07:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:48,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:07:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:48,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 04:07:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:48,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 04:07:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:48,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 04:07:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:48,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 04:07:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:48,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:07:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:48,331 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-28 04:07:48,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:07:48,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845706199] [2021-12-28 04:07:48,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845706199] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:07:48,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:07:48,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 04:07:48,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926360407] [2021-12-28 04:07:48,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:07:48,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 04:07:48,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:07:48,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 04:07:48,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:07:48,334 INFO L87 Difference]: Start difference. First operand 7445 states and 11358 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)