./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.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 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:23:49,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:23:49,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:23:49,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:23:49,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:23:49,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:23:49,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:23:49,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:23:49,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:23:49,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:23:49,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:23:49,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:23:49,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:23:49,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:23:49,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:23:49,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:23:49,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:23:49,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:23:49,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:23:49,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:23:49,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:23:49,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:23:49,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:23:49,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:23:49,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:23:49,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:23:49,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:23:49,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:23:49,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:23:49,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:23:49,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:23:49,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:23:49,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:23:49,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:23:49,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:23:49,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:23:49,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:23:49,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:23:49,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:23:49,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:23:49,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:23:49,484 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:23:49,506 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:23:49,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:23:49,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:23:49,507 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:23:49,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:23:49,508 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:23:49,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:23:49,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:23:49,510 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:23:49,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:23:49,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:23:49,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:23:49,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:23:49,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:23:49,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:23:49,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:23:49,511 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:23:49,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:23:49,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:23:49,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:23:49,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:23:49,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:23:49,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:23:49,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:23:49,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:23:49,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:23:49,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:23:49,520 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:23:49,520 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:23:49,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:23:49,520 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 [2021-12-28 03:23:49,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:23:49,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:23:49,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:23:49,825 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:23:49,825 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:23:49,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-28 03:23:49,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877b39371/419cd1f0763c4974a1b109728a5908ee/FLAGfdb8e9b1d [2021-12-28 03:23:50,589 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:23:50,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-28 03:23:50,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877b39371/419cd1f0763c4974a1b109728a5908ee/FLAGfdb8e9b1d [2021-12-28 03:23:50,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877b39371/419cd1f0763c4974a1b109728a5908ee [2021-12-28 03:23:50,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:23:50,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:23:50,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:23:50,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:23:50,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:23:50,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:23:50" (1/1) ... [2021-12-28 03:23:50,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@427a4faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:50, skipping insertion in model container [2021-12-28 03:23:50,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:23:50" (1/1) ... [2021-12-28 03:23:50,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:23:51,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:23:52,238 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-12-28 03:23:52,763 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-28 03:23:52,767 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-28 03:23:52,768 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-28 03:23:52,771 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-28 03:23:53,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:23:53,763 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:23:53,919 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-12-28 03:23:53,991 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-28 03:23:53,993 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-28 03:23:53,993 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-28 03:23:53,995 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-28 03:23:54,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:23:54,270 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:23:54,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:54 WrapperNode [2021-12-28 03:23:54,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:23:54,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:23:54,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:23:54,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:23:54,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:54" (1/1) ... [2021-12-28 03:23:54,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:54" (1/1) ... [2021-12-28 03:23:54,535 INFO L137 Inliner]: procedures = 352, calls = 6445, calls flagged for inlining = 152, calls inlined = 32, statements flattened = 4275 [2021-12-28 03:23:54,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:23:54,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:23:54,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:23:54,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:23:54,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:54" (1/1) ... [2021-12-28 03:23:54,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:54" (1/1) ... [2021-12-28 03:23:54,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:54" (1/1) ... [2021-12-28 03:23:54,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:54" (1/1) ... [2021-12-28 03:23:54,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:54" (1/1) ... [2021-12-28 03:23:54,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:54" (1/1) ... [2021-12-28 03:23:54,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:54" (1/1) ... [2021-12-28 03:23:54,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:23:54,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:23:54,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:23:54,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:23:54,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:54" (1/1) ... [2021-12-28 03:23:54,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:23:54,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:23:54,705 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 03:23:54,723 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 03:23:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2021-12-28 03:23:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2021-12-28 03:23:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-28 03:23:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-28 03:23:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-28 03:23:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 03:23:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 03:23:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2021-12-28 03:23:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2021-12-28 03:23:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-28 03:23:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-28 03:23:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 03:23:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 03:23:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-28 03:23:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-28 03:23:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_3 [2021-12-28 03:23:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_3 [2021-12-28 03:23:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-12-28 03:23:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-12-28 03:23:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 03:23:54,734 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 03:23:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2021-12-28 03:23:54,734 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2021-12-28 03:23:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 03:23:54,734 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 03:23:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_enterconfigmode [2021-12-28 03:23:54,734 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_enterconfigmode [2021-12-28 03:23:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:23:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:23:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 03:23:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 03:23:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure if_ioctl [2021-12-28 03:23:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure if_ioctl [2021-12-28 03:23:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-28 03:23:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-28 03:23:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:23:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:23:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-28 03:23:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-28 03:23:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmget [2021-12-28 03:23:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmget [2021-12-28 03:23:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-28 03:23:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-28 03:23:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 03:23:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 03:23:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure if_config [2021-12-28 03:23:54,737 INFO L138 BoogieDeclarations]: Found implementation of procedure if_config [2021-12-28 03:23:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-28 03:23:54,737 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-28 03:23:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure if_chars_in_buffer [2021-12-28 03:23:54,737 INFO L138 BoogieDeclarations]: Found implementation of procedure if_chars_in_buffer [2021-12-28 03:23:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure if_write_room [2021-12-28 03:23:54,737 INFO L138 BoogieDeclarations]: Found implementation of procedure if_write_room [2021-12-28 03:23:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure if_lock [2021-12-28 03:23:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure if_lock [2021-12-28 03:23:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 03:23:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 03:23:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure if_throttle [2021-12-28 03:23:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure if_throttle [2021-12-28 03:23:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-28 03:23:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-28 03:23:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 03:23:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-28 03:23:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-28 03:23:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2021-12-28 03:23:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2021-12-28 03:23:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-28 03:23:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-28 03:23:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 03:23:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:23:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 03:23:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 03:23:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:23:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-28 03:23:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:23:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-28 03:23:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-28 03:23:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:23:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:23:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 03:23:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 03:23:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 03:23:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-28 03:23:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-28 03:23:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmset [2021-12-28 03:23:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmset [2021-12-28 03:23:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-28 03:23:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-28 03:23:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure if_open [2021-12-28 03:23:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure if_open [2021-12-28 03:23:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 03:23:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 03:23:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure setflags [2021-12-28 03:23:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setflags [2021-12-28 03:23:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 03:23:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 03:23:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure if_unthrottle [2021-12-28 03:23:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure if_unthrottle [2021-12-28 03:23:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:23:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-28 03:23:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-28 03:23:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:23:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:23:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 03:23:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 03:23:55,112 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:23:55,114 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:23:55,402 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-28 03:23:55,402 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-28 03:23:55,430 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-28 03:23:55,431 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-28 03:23:55,582 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false;call ULTIMATE.dealloc(if_version_~#version~0#1.base, if_version_~#version~0#1.offset);havoc if_version_~#version~0#1.base, if_version_~#version~0#1.offset;call ULTIMATE.dealloc(if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset);havoc if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset;call ULTIMATE.dealloc(if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset);havoc if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset; [2021-12-28 03:23:55,582 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2021-12-28 03:23:55,582 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume !false; [2021-12-28 03:23:55,583 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##52: assume false; [2021-12-28 03:23:55,583 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2021-12-28 03:23:55,583 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2021-12-28 03:23:55,583 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2021-12-28 03:23:55,583 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2021-12-28 03:23:55,583 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2021-12-28 03:23:55,583 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2021-12-28 03:23:55,583 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-12-28 03:23:55,584 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-12-28 03:23:55,676 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2021-12-28 03:23:55,678 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2021-12-28 03:23:55,678 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012-1: ~tmp~4#1.base, ~tmp~4#1.offset := #t~ret76#1.base, #t~ret76#1.offset;havoc #t~ret76#1.base, #t~ret76#1.offset;~__ptr~0#1.base, ~__ptr~0#1.offset := ~tmp~4#1.base, ~tmp~4#1.offset; [2021-12-28 03:23:55,678 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012: SUMMARY for call #t~ret76#1.base, #t~ret76#1.offset := get_current(); srcloc: null [2021-12-28 03:23:55,679 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-28 03:23:55,680 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-28 03:23:55,682 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-28 03:23:55,768 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-12-28 03:23:55,768 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-12-28 03:23:55,768 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume false; [2021-12-28 03:23:55,769 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !false; [2021-12-28 03:23:55,769 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2021-12-28 03:23:55,769 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2021-12-28 03:23:55,930 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-28 03:24:46,147 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2021-12-28 03:24:46,148 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2021-12-28 03:24:46,162 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:24:46,175 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:24:46,176 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-28 03:24:46,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:24:46 BoogieIcfgContainer [2021-12-28 03:24:46,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:24:46,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:24:46,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:24:46,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:24:46,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:23:50" (1/3) ... [2021-12-28 03:24:46,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e280c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:24:46, skipping insertion in model container [2021-12-28 03:24:46,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:54" (2/3) ... [2021-12-28 03:24:46,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e280c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:24:46, skipping insertion in model container [2021-12-28 03:24:46,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:24:46" (3/3) ... [2021-12-28 03:24:46,185 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-28 03:24:46,189 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:24:46,189 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:24:46,231 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:24:46,236 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 03:24:46,237 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:24:46,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 662 states, 501 states have (on average 1.405189620758483) internal successors, (704), 514 states have internal predecessors, (704), 117 states have call successors, (117), 43 states have call predecessors, (117), 43 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2021-12-28 03:24:46,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-28 03:24:46,274 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:24:46,275 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:24:46,275 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:24:46,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:24:46,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1164007444, now seen corresponding path program 1 times [2021-12-28 03:24:46,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:24:46,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262389839] [2021-12-28 03:24:46,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:24:46,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:24:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:46,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:24:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:46,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:24:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:46,874 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-28 03:24:46,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:24:46,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262389839] [2021-12-28 03:24:46,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262389839] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:24:46,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:24:46,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:24:46,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117192987] [2021-12-28 03:24:46,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:24:46,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:24:46,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:24:46,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:24:46,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:24:46,899 INFO L87 Difference]: Start difference. First operand has 662 states, 501 states have (on average 1.405189620758483) internal successors, (704), 514 states have internal predecessors, (704), 117 states have call successors, (117), 43 states have call predecessors, (117), 43 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-28 03:24:48,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:24:49,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:24:49,401 INFO L93 Difference]: Finished difference Result 2166 states and 3205 transitions. [2021-12-28 03:24:49,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:24:49,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2021-12-28 03:24:49,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:24:49,418 INFO L225 Difference]: With dead ends: 2166 [2021-12-28 03:24:49,419 INFO L226 Difference]: Without dead ends: 1501 [2021-12-28 03:24:49,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 03:24:49,427 INFO L933 BasicCegarLoop]: 1035 mSDtfsCounter, 1605 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 2105 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-28 03:24:49,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1695 Valid, 2105 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-28 03:24:49,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2021-12-28 03:24:49,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1392. [2021-12-28 03:24:49,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1063 states have (on average 1.3904045155221072) internal successors, (1478), 1087 states have internal predecessors, (1478), 237 states have call successors, (237), 85 states have call predecessors, (237), 91 states have return successors, (282), 239 states have call predecessors, (282), 235 states have call successors, (282) [2021-12-28 03:24:49,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1997 transitions. [2021-12-28 03:24:49,551 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1997 transitions. Word has length 22 [2021-12-28 03:24:49,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:24:49,552 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 1997 transitions. [2021-12-28 03:24:49,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-28 03:24:49,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1997 transitions. [2021-12-28 03:24:49,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-28 03:24:49,560 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:24:49,560 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:24:49,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:24:49,561 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:24:49,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:24:49,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1727764396, now seen corresponding path program 1 times [2021-12-28 03:24:49,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:24:49,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920979893] [2021-12-28 03:24:49,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:24:49,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:24:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:49,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:24:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:49,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:24:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:49,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-28 03:24:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:49,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-28 03:24:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:49,905 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-28 03:24:49,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:24:49,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920979893] [2021-12-28 03:24:49,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920979893] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:24:49,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:24:49,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:24:49,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855099298] [2021-12-28 03:24:49,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:24:49,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:24:49,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:24:49,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:24:49,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:24:49,912 INFO L87 Difference]: Start difference. First operand 1392 states and 1997 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-28 03:24:51,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:24:51,328 INFO L93 Difference]: Finished difference Result 3053 states and 4444 transitions. [2021-12-28 03:24:51,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 03:24:51,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2021-12-28 03:24:51,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:24:51,345 INFO L225 Difference]: With dead ends: 3053 [2021-12-28 03:24:51,345 INFO L226 Difference]: Without dead ends: 1667 [2021-12-28 03:24:51,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:24:51,350 INFO L933 BasicCegarLoop]: 940 mSDtfsCounter, 483 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-28 03:24:51,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 1947 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-28 03:24:51,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2021-12-28 03:24:51,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1561. [2021-12-28 03:24:51,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1196 states have (on average 1.4030100334448161) internal successors, (1678), 1226 states have internal predecessors, (1678), 273 states have call successors, (273), 85 states have call predecessors, (273), 91 states have return successors, (327), 273 states have call predecessors, (327), 271 states have call successors, (327) [2021-12-28 03:24:51,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2278 transitions. [2021-12-28 03:24:51,415 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2278 transitions. Word has length 42 [2021-12-28 03:24:51,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:24:51,415 INFO L470 AbstractCegarLoop]: Abstraction has 1561 states and 2278 transitions. [2021-12-28 03:24:51,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-28 03:24:51,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2278 transitions. [2021-12-28 03:24:51,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-28 03:24:51,418 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:24:51,418 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:24:51,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:24:51,419 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:24:51,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:24:51,419 INFO L85 PathProgramCache]: Analyzing trace with hash 2016306839, now seen corresponding path program 1 times [2021-12-28 03:24:51,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:24:51,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475486894] [2021-12-28 03:24:51,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:24:51,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:24:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:51,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:24:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:51,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:24:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:51,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-28 03:24:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:51,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 03:24:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:51,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-28 03:24:51,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:24:51,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475486894] [2021-12-28 03:24:51,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475486894] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:24:51,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:24:51,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 03:24:51,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860668476] [2021-12-28 03:24:51,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:24:51,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 03:24:51,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:24:51,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 03:24:51,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 03:24:51,797 INFO L87 Difference]: Start difference. First operand 1561 states and 2278 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-28 03:24:53,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:24:56,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:24:56,601 INFO L93 Difference]: Finished difference Result 3311 states and 4968 transitions. [2021-12-28 03:24:56,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-28 03:24:56,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2021-12-28 03:24:56,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:24:56,612 INFO L225 Difference]: With dead ends: 3311 [2021-12-28 03:24:56,612 INFO L226 Difference]: Without dead ends: 1757 [2021-12-28 03:24:56,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-12-28 03:24:56,622 INFO L933 BasicCegarLoop]: 889 mSDtfsCounter, 1015 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 398 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 2590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-28 03:24:56,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1053 Valid, 3685 Invalid, 2590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [398 Valid, 2191 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2021-12-28 03:24:56,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2021-12-28 03:24:56,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1543. [2021-12-28 03:24:56,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1170 states have (on average 1.3974358974358974) internal successors, (1635), 1199 states have internal predecessors, (1635), 278 states have call successors, (278), 85 states have call predecessors, (278), 94 states have return successors, (337), 284 states have call predecessors, (337), 276 states have call successors, (337) [2021-12-28 03:24:56,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2250 transitions. [2021-12-28 03:24:56,677 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2250 transitions. Word has length 47 [2021-12-28 03:24:56,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:24:56,677 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2250 transitions. [2021-12-28 03:24:56,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-28 03:24:56,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2250 transitions. [2021-12-28 03:24:56,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-28 03:24:56,679 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:24:56,679 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:24:56,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 03:24:56,679 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:24:56,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:24:56,680 INFO L85 PathProgramCache]: Analyzing trace with hash -2124098365, now seen corresponding path program 1 times [2021-12-28 03:24:56,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:24:56,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003111765] [2021-12-28 03:24:56,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:24:56,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:24:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:56,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:24:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:56,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:24:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:56,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:24:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:56,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:24:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:24:57,003 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-28 03:24:57,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:24:57,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003111765] [2021-12-28 03:24:57,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003111765] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:24:57,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:24:57,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 03:24:57,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423283821] [2021-12-28 03:24:57,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:24:57,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 03:24:57,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:24:57,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 03:24:57,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-28 03:24:57,005 INFO L87 Difference]: Start difference. First operand 1543 states and 2250 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-28 03:24:58,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:25:00,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:25:01,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []