./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 c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-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-tmp.no-commuhash-c3fed41 [2021-12-18 01:28:31,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 01:28:31,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 01:28:31,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 01:28:31,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 01:28:31,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 01:28:31,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 01:28:31,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 01:28:31,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 01:28:31,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 01:28:31,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 01:28:31,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 01:28:31,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 01:28:31,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 01:28:31,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 01:28:31,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 01:28:31,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 01:28:31,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 01:28:31,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 01:28:31,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 01:28:31,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 01:28:31,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 01:28:31,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 01:28:31,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 01:28:31,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 01:28:31,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 01:28:31,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 01:28:31,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 01:28:31,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 01:28:31,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 01:28:31,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 01:28:31,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 01:28:31,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 01:28:31,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 01:28:31,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 01:28:31,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 01:28:31,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 01:28:31,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 01:28:31,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 01:28:31,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 01:28:31,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 01:28:31,408 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 01:28:31,432 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 01:28:31,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 01:28:31,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 01:28:31,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 01:28:31,433 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 01:28:31,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 01:28:31,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 01:28:31,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 01:28:31,434 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 01:28:31,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 01:28:31,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 01:28:31,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 01:28:31,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 01:28:31,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 01:28:31,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 01:28:31,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 01:28:31,436 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 01:28:31,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 01:28:31,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 01:28:31,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 01:28:31,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 01:28:31,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 01:28:31,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 01:28:31,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 01:28:31,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 01:28:31,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 01:28:31,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 01:28:31,437 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 01:28:31,437 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 01:28:31,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 01:28:31,438 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 01:28:31,438 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 [2021-12-18 01:28:31,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 01:28:31,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 01:28:31,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 01:28:31,689 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 01:28:31,690 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 01:28:31,691 INFO L432 ainManager$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 [2021-12-18 01:28:31,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e316e4cd6/7d0c0000b4cf4e92bf914ed33be0a686/FLAGe7d0f3358 [2021-12-18 01:28:32,471 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 01:28:32,472 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 [2021-12-18 01:28:32,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e316e4cd6/7d0c0000b4cf4e92bf914ed33be0a686/FLAGe7d0f3358 [2021-12-18 01:28:32,765 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e316e4cd6/7d0c0000b4cf4e92bf914ed33be0a686 [2021-12-18 01:28:32,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 01:28:32,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 01:28:32,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 01:28:32,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 01:28:32,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 01:28:32,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 01:28:32" (1/1) ... [2021-12-18 01:28:32,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572ad032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:28:32, skipping insertion in model container [2021-12-18 01:28:32,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 01:28:32" (1/1) ... [2021-12-18 01:28:32,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 01:28:32,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 01:28:33,782 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] [2021-12-18 01:28:34,181 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:28:34,183 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:28:34,183 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:28:34,187 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:28:35,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 01:28:35,050 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 01:28:35,216 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] [2021-12-18 01:28:35,294 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:28:35,296 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:28:35,296 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:28:35,298 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:28:35,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 01:28:35,631 INFO L208 MainTranslator]: Completed translation [2021-12-18 01:28:35,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:28:35 WrapperNode [2021-12-18 01:28:35,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 01:28:35,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 01:28:35,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 01:28:35,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 01:28:35,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:28:35" (1/1) ... [2021-12-18 01:28:35,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:28:35" (1/1) ... [2021-12-18 01:28:35,942 INFO L137 Inliner]: procedures = 352, calls = 6445, calls flagged for inlining = 152, calls inlined = 32, statements flattened = 4275 [2021-12-18 01:28:35,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 01:28:35,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 01:28:35,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 01:28:35,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 01:28:35,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:28:35" (1/1) ... [2021-12-18 01:28:35,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:28:35" (1/1) ... [2021-12-18 01:28:35,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:28:35" (1/1) ... [2021-12-18 01:28:35,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:28:35" (1/1) ... [2021-12-18 01:28:36,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:28:35" (1/1) ... [2021-12-18 01:28:36,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:28:35" (1/1) ... [2021-12-18 01:28:36,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:28:35" (1/1) ... [2021-12-18 01:28:36,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 01:28:36,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 01:28:36,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 01:28:36,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 01:28:36,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:28:35" (1/1) ... [2021-12-18 01:28:36,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 01:28:36,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:28:36,115 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) [2021-12-18 01:28:36,126 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 [2021-12-18 01:28:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2021-12-18 01:28:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2021-12-18 01:28:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-18 01:28:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-18 01:28:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-18 01:28:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 01:28:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 01:28:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2021-12-18 01:28:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2021-12-18 01:28:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-18 01:28:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-18 01:28:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 01:28:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 01:28:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-18 01:28:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-18 01:28:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_3 [2021-12-18 01:28:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_3 [2021-12-18 01:28:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-12-18 01:28:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-12-18 01:28:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 01:28:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 01:28:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2021-12-18 01:28:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2021-12-18 01:28:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 01:28:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 01:28:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_enterconfigmode [2021-12-18 01:28:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_enterconfigmode [2021-12-18 01:28:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 01:28:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 01:28:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 01:28:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 01:28:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure if_ioctl [2021-12-18 01:28:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure if_ioctl [2021-12-18 01:28:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-18 01:28:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-18 01:28:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 01:28:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 01:28:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-18 01:28:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-18 01:28:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmget [2021-12-18 01:28:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmget [2021-12-18 01:28:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 01:28:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 01:28:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-18 01:28:36,157 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-18 01:28:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure if_config [2021-12-18 01:28:36,157 INFO L138 BoogieDeclarations]: Found implementation of procedure if_config [2021-12-18 01:28:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-18 01:28:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-18 01:28:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure if_chars_in_buffer [2021-12-18 01:28:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure if_chars_in_buffer [2021-12-18 01:28:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure if_write_room [2021-12-18 01:28:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure if_write_room [2021-12-18 01:28:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure if_lock [2021-12-18 01:28:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure if_lock [2021-12-18 01:28:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 01:28:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 01:28:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure if_throttle [2021-12-18 01:28:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure if_throttle [2021-12-18 01:28:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-18 01:28:36,160 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-18 01:28:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 01:28:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-18 01:28:36,160 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-18 01:28:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2021-12-18 01:28:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2021-12-18 01:28:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-18 01:28:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-18 01:28:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 01:28:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 01:28:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 01:28:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 01:28:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 01:28:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-18 01:28:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 01:28:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-18 01:28:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-18 01:28:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 01:28:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 01:28:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 01:28:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 01:28:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 01:28:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-18 01:28:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-18 01:28:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmset [2021-12-18 01:28:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmset [2021-12-18 01:28:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-18 01:28:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-18 01:28:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure if_open [2021-12-18 01:28:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure if_open [2021-12-18 01:28:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 01:28:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 01:28:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure setflags [2021-12-18 01:28:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setflags [2021-12-18 01:28:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-18 01:28:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-18 01:28:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure if_unthrottle [2021-12-18 01:28:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure if_unthrottle [2021-12-18 01:28:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 01:28:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-18 01:28:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-18 01:28:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 01:28:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 01:28:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-18 01:28:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-18 01:28:36,502 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 01:28:36,506 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 01:28:36,829 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-18 01:28:36,830 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-18 01:28:36,865 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:28:36,868 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:28:37,055 INFO L768 $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; [2021-12-18 01:28:37,056 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2021-12-18 01:28:37,056 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume !false; [2021-12-18 01:28:37,056 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##52: assume false; [2021-12-18 01:28:37,056 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2021-12-18 01:28:37,056 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2021-12-18 01:28:37,056 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2021-12-18 01:28:37,057 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2021-12-18 01:28:37,057 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2021-12-18 01:28:37,057 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2021-12-18 01:28:37,057 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-12-18 01:28:37,057 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-12-18 01:28:37,211 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2021-12-18 01:28:37,211 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2021-12-18 01:28:37,212 INFO L768 $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; [2021-12-18 01:28:37,212 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012: SUMMARY for call #t~ret76#1.base, #t~ret76#1.offset := get_current(); srcloc: null [2021-12-18 01:28:37,213 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:28:37,214 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:28:37,215 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:28:37,336 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-12-18 01:28:37,336 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-12-18 01:28:37,336 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume false; [2021-12-18 01:28:37,337 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !false; [2021-12-18 01:28:37,337 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2021-12-18 01:28:37,337 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2021-12-18 01:28:37,648 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:29:21,974 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2021-12-18 01:29:21,975 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2021-12-18 01:29:21,990 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 01:29:22,003 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 01:29:22,003 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-18 01:29:22,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 01:29:22 BoogieIcfgContainer [2021-12-18 01:29:22,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 01:29:22,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 01:29:22,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 01:29:22,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 01:29:22,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 01:28:32" (1/3) ... [2021-12-18 01:29:22,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26751e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 01:29:22, skipping insertion in model container [2021-12-18 01:29:22,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:28:35" (2/3) ... [2021-12-18 01:29:22,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26751e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 01:29:22, skipping insertion in model container [2021-12-18 01:29:22,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 01:29:22" (3/3) ... [2021-12-18 01:29:22,013 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-18 01:29:22,016 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 01:29:22,016 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 01:29:22,055 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 01:29:22,060 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 [2021-12-18 01:29:22,060 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 01:29:22,098 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) [2021-12-18 01:29:22,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-18 01:29:22,102 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:29:22,103 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:29:22,103 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:29:22,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:29:22,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1164007444, now seen corresponding path program 1 times [2021-12-18 01:29:22,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:29:22,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19169750] [2021-12-18 01:29:22,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:29:22,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:29:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:22,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:29:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:22,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:29:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:22,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:29:22,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:29:22,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19169750] [2021-12-18 01:29:22,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19169750] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:29:22,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:29:22,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 01:29:22,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638564027] [2021-12-18 01:29:22,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:29:22,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 01:29:22,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:29:22,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 01:29:22,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 01:29:22,781 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) [2021-12-18 01:29:23,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:29:25,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:29:25,184 INFO L93 Difference]: Finished difference Result 2166 states and 3205 transitions. [2021-12-18 01:29:25,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 01:29:25,186 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 [2021-12-18 01:29:25,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:29:25,203 INFO L225 Difference]: With dead ends: 2166 [2021-12-18 01:29:25,203 INFO L226 Difference]: Without dead ends: 1501 [2021-12-18 01:29:25,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 01:29:25,215 INFO L933 BasicCegarLoop]: 1021 mSDtfsCounter, 1608 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1698 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-18 01:29:25,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1698 Valid, 2160 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-18 01:29:25,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2021-12-18 01:29:25,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1392. [2021-12-18 01:29:25,352 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) [2021-12-18 01:29:25,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1997 transitions. [2021-12-18 01:29:25,364 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1997 transitions. Word has length 22 [2021-12-18 01:29:25,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:29:25,365 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 1997 transitions. [2021-12-18 01:29:25,365 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) [2021-12-18 01:29:25,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1997 transitions. [2021-12-18 01:29:25,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-18 01:29:25,370 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:29:25,370 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] [2021-12-18 01:29:25,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 01:29:25,370 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:29:25,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:29:25,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1727764396, now seen corresponding path program 1 times [2021-12-18 01:29:25,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:29:25,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605559681] [2021-12-18 01:29:25,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:29:25,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:29:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:25,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:29:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:25,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:29:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:25,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 01:29:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:25,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 01:29:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:25,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:29:25,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:29:25,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605559681] [2021-12-18 01:29:25,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605559681] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:29:25,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:29:25,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 01:29:25,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709610635] [2021-12-18 01:29:25,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:29:25,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 01:29:25,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:29:25,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 01:29:25,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 01:29:25,675 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) [2021-12-18 01:29:27,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:29:28,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:29:28,544 INFO L93 Difference]: Finished difference Result 3053 states and 4444 transitions. [2021-12-18 01:29:28,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 01:29:28,545 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 [2021-12-18 01:29:28,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:29:28,553 INFO L225 Difference]: With dead ends: 3053 [2021-12-18 01:29:28,554 INFO L226 Difference]: Without dead ends: 1667 [2021-12-18 01:29:28,559 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 [2021-12-18 01:29:28,560 INFO L933 BasicCegarLoop]: 942 mSDtfsCounter, 483 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 151 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-18 01:29:28,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 2039 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2021-12-18 01:29:28,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2021-12-18 01:29:28,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1561. [2021-12-18 01:29:28,633 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) [2021-12-18 01:29:28,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2278 transitions. [2021-12-18 01:29:28,657 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2278 transitions. Word has length 42 [2021-12-18 01:29:28,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:29:28,657 INFO L470 AbstractCegarLoop]: Abstraction has 1561 states and 2278 transitions. [2021-12-18 01:29:28,657 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) [2021-12-18 01:29:28,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2278 transitions. [2021-12-18 01:29:28,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-18 01:29:28,660 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:29:28,660 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] [2021-12-18 01:29:28,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 01:29:28,660 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:29:28,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:29:28,661 INFO L85 PathProgramCache]: Analyzing trace with hash 2016306839, now seen corresponding path program 1 times [2021-12-18 01:29:28,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:29:28,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704052730] [2021-12-18 01:29:28,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:29:28,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:29:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:28,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:29:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:28,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:29:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:29,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 01:29:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:29,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 01:29:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:29,052 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:29:29,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:29:29,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704052730] [2021-12-18 01:29:29,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704052730] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:29:29,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:29:29,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 01:29:29,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105656934] [2021-12-18 01:29:29,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:29:29,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 01:29:29,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:29:29,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 01:29:29,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-18 01:29:29,056 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) [2021-12-18 01:29:31,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:29:32,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:29:32,981 INFO L93 Difference]: Finished difference Result 3311 states and 4968 transitions. [2021-12-18 01:29:32,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 01:29:32,982 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 [2021-12-18 01:29:32,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:29:32,990 INFO L225 Difference]: With dead ends: 3311 [2021-12-18 01:29:32,990 INFO L226 Difference]: Without dead ends: 1757 [2021-12-18 01:29:32,996 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 [2021-12-18 01:29:32,998 INFO L933 BasicCegarLoop]: 889 mSDtfsCounter, 1015 mSDsluCounter, 3104 mSDsCounter, 0 mSdLazyCounter, 1901 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 3993 SdHoareTripleChecker+Invalid, 2295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 1901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-18 01:29:32,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1053 Valid, 3993 Invalid, 2295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 1901 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-18 01:29:33,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2021-12-18 01:29:33,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1543. [2021-12-18 01:29:33,074 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) [2021-12-18 01:29:33,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2250 transitions. [2021-12-18 01:29:33,079 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2250 transitions. Word has length 47 [2021-12-18 01:29:33,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:29:33,080 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2250 transitions. [2021-12-18 01:29:33,080 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) [2021-12-18 01:29:33,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2250 transitions. [2021-12-18 01:29:33,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-18 01:29:33,083 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:29:33,083 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] [2021-12-18 01:29:33,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 01:29:33,083 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:29:33,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:29:33,084 INFO L85 PathProgramCache]: Analyzing trace with hash -2124098365, now seen corresponding path program 1 times [2021-12-18 01:29:33,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:29:33,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507237290] [2021-12-18 01:29:33,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:29:33,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:29:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:33,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:29:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:33,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:29:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:33,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:29:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:33,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 01:29:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:33,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:29:33,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:29:33,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507237290] [2021-12-18 01:29:33,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507237290] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:29:33,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:29:33,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 01:29:33,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781604178] [2021-12-18 01:29:33,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:29:33,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 01:29:33,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:29:33,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 01:29:33,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-18 01:29:33,425 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) [2021-12-18 01:29:35,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:29:36,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:29:39,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:29:39,239 INFO L93 Difference]: Finished difference Result 2705 states and 4086 transitions. [2021-12-18 01:29:39,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 01:29:39,239 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 46 [2021-12-18 01:29:39,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:29:39,248 INFO L225 Difference]: With dead ends: 2705 [2021-12-18 01:29:39,249 INFO L226 Difference]: Without dead ends: 1879 [2021-12-18 01:29:39,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-12-18 01:29:39,255 INFO L933 BasicCegarLoop]: 816 mSDtfsCounter, 1074 mSDsluCounter, 3134 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 3950 SdHoareTripleChecker+Invalid, 2978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-18 01:29:39,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1114 Valid, 3950 Invalid, 2978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [467 Valid, 2511 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-12-18 01:29:39,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2021-12-18 01:29:39,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1543. [2021-12-18 01:29:39,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1170 states have (on average 1.3965811965811965) internal successors, (1634), 1199 states have internal predecessors, (1634), 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) [2021-12-18 01:29:39,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2249 transitions. [2021-12-18 01:29:39,303 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2249 transitions. Word has length 46 [2021-12-18 01:29:39,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:29:39,304 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2249 transitions. [2021-12-18 01:29:39,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-12-18 01:29:39,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2249 transitions. [2021-12-18 01:29:39,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-18 01:29:39,309 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:29:39,309 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, 1, 1] [2021-12-18 01:29:39,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 01:29:39,309 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:29:39,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:29:39,310 INFO L85 PathProgramCache]: Analyzing trace with hash 436135357, now seen corresponding path program 1 times [2021-12-18 01:29:39,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:29:39,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698981138] [2021-12-18 01:29:39,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:29:39,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:29:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:39,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:29:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:39,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:29:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:39,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 01:29:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:39,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 01:29:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:39,601 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:29:39,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:29:39,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698981138] [2021-12-18 01:29:39,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698981138] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:29:39,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:29:39,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 01:29:39,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985624496] [2021-12-18 01:29:39,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:29:39,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 01:29:39,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:29:39,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 01:29:39,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 01:29:39,604 INFO L87 Difference]: Start difference. First operand 1543 states and 2249 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-18 01:29:41,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:29:44,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:29:46,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:29:50,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:29:50,169 INFO L93 Difference]: Finished difference Result 2773 states and 4194 transitions. [2021-12-18 01:29:50,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 01:29:50,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2021-12-18 01:29:50,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:29:50,184 INFO L225 Difference]: With dead ends: 2773 [2021-12-18 01:29:50,185 INFO L226 Difference]: Without dead ends: 2770 [2021-12-18 01:29:50,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-12-18 01:29:50,188 INFO L933 BasicCegarLoop]: 2028 mSDtfsCounter, 3711 mSDsluCounter, 4065 mSDsCounter, 0 mSdLazyCounter, 4461 mSolverCounterSat, 1610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3793 SdHoareTripleChecker+Valid, 6093 SdHoareTripleChecker+Invalid, 6071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1610 IncrementalHoareTripleChecker+Valid, 4461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-12-18 01:29:50,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3793 Valid, 6093 Invalid, 6071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1610 Valid, 4461 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2021-12-18 01:29:50,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2021-12-18 01:29:50,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2366. [2021-12-18 01:29:50,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2366 states, 1790 states have (on average 1.393854748603352) internal successors, (2495), 1833 states have internal predecessors, (2495), 427 states have call successors, (427), 127 states have call predecessors, (427), 148 states have return successors, (584), 445 states have call predecessors, (584), 425 states have call successors, (584) [2021-12-18 01:29:50,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 3506 transitions. [2021-12-18 01:29:50,262 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 3506 transitions. Word has length 49 [2021-12-18 01:29:50,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:29:50,262 INFO L470 AbstractCegarLoop]: Abstraction has 2366 states and 3506 transitions. [2021-12-18 01:29:50,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-18 01:29:50,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 3506 transitions. [2021-12-18 01:29:50,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-18 01:29:50,264 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:29:50,265 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2021-12-18 01:29:50,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 01:29:50,265 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:29:50,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:29:50,265 INFO L85 PathProgramCache]: Analyzing trace with hash -419613441, now seen corresponding path program 1 times [2021-12-18 01:29:50,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:29:50,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376150743] [2021-12-18 01:29:50,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:29:50,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:29:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:50,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:29:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:29:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:50,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:29:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:50,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 01:29:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:50,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 01:29:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:50,587 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:29:50,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:29:50,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376150743] [2021-12-18 01:29:50,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376150743] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:29:50,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:29:50,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 01:29:50,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523284922] [2021-12-18 01:29:50,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:29:50,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 01:29:50,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:29:50,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 01:29:50,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 01:29:50,590 INFO L87 Difference]: Start difference. First operand 2366 states and 3506 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 01:29:52,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:29:54,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:29:56,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:29:56,409 INFO L93 Difference]: Finished difference Result 5122 states and 7675 transitions. [2021-12-18 01:29:56,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 01:29:56,410 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2021-12-18 01:29:56,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:29:56,424 INFO L225 Difference]: With dead ends: 5122 [2021-12-18 01:29:56,424 INFO L226 Difference]: Without dead ends: 2760 [2021-12-18 01:29:56,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-18 01:29:56,434 INFO L933 BasicCegarLoop]: 827 mSDtfsCounter, 866 mSDsluCounter, 2384 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 342 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 2077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-12-18 01:29:56,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [893 Valid, 3211 Invalid, 2077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 1734 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2021-12-18 01:29:56,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2021-12-18 01:29:56,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 2256. [2021-12-18 01:29:56,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2256 states, 1706 states have (on average 1.388042203985932) internal successors, (2368), 1746 states have internal predecessors, (2368), 402 states have call successors, (402), 125 states have call predecessors, (402), 147 states have return successors, (550), 421 states have call predecessors, (550), 400 states have call successors, (550) [2021-12-18 01:29:56,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2256 states to 2256 states and 3320 transitions. [2021-12-18 01:29:56,506 INFO L78 Accepts]: Start accepts. Automaton has 2256 states and 3320 transitions. Word has length 59 [2021-12-18 01:29:56,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:29:56,507 INFO L470 AbstractCegarLoop]: Abstraction has 2256 states and 3320 transitions. [2021-12-18 01:29:56,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 01:29:56,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2256 states and 3320 transitions. [2021-12-18 01:29:56,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-18 01:29:56,509 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:29:56,509 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:29:56,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 01:29:56,509 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:29:56,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:29:56,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1575982952, now seen corresponding path program 1 times [2021-12-18 01:29:56,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:29:56,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921526830] [2021-12-18 01:29:56,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:29:56,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:29:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:56,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:29:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:56,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:29:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:56,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:29:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:56,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 01:29:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:56,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 01:29:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:56,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 01:29:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:29:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:29:56,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:29:56,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921526830] [2021-12-18 01:29:56,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921526830] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:29:56,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:29:56,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 01:29:56,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142308206] [2021-12-18 01:29:56,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:29:56,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 01:29:56,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:29:56,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 01:29:56,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-18 01:29:56,826 INFO L87 Difference]: Start difference. First operand 2256 states and 3320 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-18 01:29:58,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:30:01,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:30:03,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:30:03,705 INFO L93 Difference]: Finished difference Result 3035 states and 4687 transitions. [2021-12-18 01:30:03,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 01:30:03,706 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2021-12-18 01:30:03,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:30:03,723 INFO L225 Difference]: With dead ends: 3035 [2021-12-18 01:30:03,723 INFO L226 Difference]: Without dead ends: 3030 [2021-12-18 01:30:03,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-12-18 01:30:03,727 INFO L933 BasicCegarLoop]: 944 mSDtfsCounter, 1198 mSDsluCounter, 3056 mSDsCounter, 0 mSdLazyCounter, 2143 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 4000 SdHoareTripleChecker+Invalid, 2610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 2143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-12-18 01:30:03,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1286 Valid, 4000 Invalid, 2610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [467 Valid, 2143 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2021-12-18 01:30:03,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-12-18 01:30:03,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2266. [2021-12-18 01:30:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2266 states, 1714 states have (on average 1.3862310385064178) internal successors, (2376), 1754 states have internal predecessors, (2376), 402 states have call successors, (402), 125 states have call predecessors, (402), 149 states have return successors, (556), 423 states have call predecessors, (556), 400 states have call successors, (556) [2021-12-18 01:30:03,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2266 states to 2266 states and 3334 transitions. [2021-12-18 01:30:03,854 INFO L78 Accepts]: Start accepts. Automaton has 2266 states and 3334 transitions. Word has length 58 [2021-12-18 01:30:03,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:30:03,854 INFO L470 AbstractCegarLoop]: Abstraction has 2266 states and 3334 transitions. [2021-12-18 01:30:03,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-18 01:30:03,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2266 states and 3334 transitions. [2021-12-18 01:30:03,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-18 01:30:03,856 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:30:03,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:30:03,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 01:30:03,857 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:30:03,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:30:03,857 INFO L85 PathProgramCache]: Analyzing trace with hash 669939408, now seen corresponding path program 1 times [2021-12-18 01:30:03,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:30:03,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492927183] [2021-12-18 01:30:03,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:30:03,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:30:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:04,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:30:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:04,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:30:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:04,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:30:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:04,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 01:30:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:04,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 01:30:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:04,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-18 01:30:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:04,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:30:04,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:30:04,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492927183] [2021-12-18 01:30:04,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492927183] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:30:04,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:30:04,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 01:30:04,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726644912] [2021-12-18 01:30:04,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:30:04,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 01:30:04,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:30:04,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 01:30:04,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 01:30:04,244 INFO L87 Difference]: Start difference. First operand 2266 states and 3334 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-18 01:30:05,424 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 [] [2021-12-18 01:30:08,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:30:10,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:30:10,287 INFO L93 Difference]: Finished difference Result 5122 states and 7969 transitions. [2021-12-18 01:30:10,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 01:30:10,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 58 [2021-12-18 01:30:10,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:30:10,300 INFO L225 Difference]: With dead ends: 5122 [2021-12-18 01:30:10,300 INFO L226 Difference]: Without dead ends: 2863 [2021-12-18 01:30:10,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-12-18 01:30:10,309 INFO L933 BasicCegarLoop]: 798 mSDtfsCounter, 1072 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 1633 mSolverCounterSat, 453 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 1633 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-18 01:30:10,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 2718 Invalid, 2087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 1633 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2021-12-18 01:30:10,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2021-12-18 01:30:10,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2272. [2021-12-18 01:30:10,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2272 states, 1720 states have (on average 1.3848837209302325) internal successors, (2382), 1760 states have internal predecessors, (2382), 402 states have call successors, (402), 125 states have call predecessors, (402), 149 states have return successors, (556), 423 states have call predecessors, (556), 400 states have call successors, (556) [2021-12-18 01:30:10,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 3340 transitions. [2021-12-18 01:30:10,381 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 3340 transitions. Word has length 58 [2021-12-18 01:30:10,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:30:10,382 INFO L470 AbstractCegarLoop]: Abstraction has 2272 states and 3340 transitions. [2021-12-18 01:30:10,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-18 01:30:10,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 3340 transitions. [2021-12-18 01:30:10,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-18 01:30:10,384 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:30:10,384 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:30:10,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 01:30:10,384 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:30:10,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:30:10,385 INFO L85 PathProgramCache]: Analyzing trace with hash -298738899, now seen corresponding path program 1 times [2021-12-18 01:30:10,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:30:10,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161280357] [2021-12-18 01:30:10,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:30:10,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:30:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:10,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:30:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:10,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:30:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:10,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:30:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:10,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 01:30:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:10,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 01:30:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:10,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 01:30:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:10,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 01:30:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:10,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 01:30:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:10,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 01:30:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:10,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:30:10,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:30:10,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161280357] [2021-12-18 01:30:10,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161280357] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:30:10,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:30:10,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 01:30:10,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505520876] [2021-12-18 01:30:10,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:30:10,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 01:30:10,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:30:10,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 01:30:10,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-18 01:30:10,783 INFO L87 Difference]: Start difference. First operand 2272 states and 3340 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-18 01:30:12,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:30:15,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:30:18,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:30:18,051 INFO L93 Difference]: Finished difference Result 5179 states and 8052 transitions. [2021-12-18 01:30:18,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 01:30:18,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2021-12-18 01:30:18,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:30:18,065 INFO L225 Difference]: With dead ends: 5179 [2021-12-18 01:30:18,066 INFO L226 Difference]: Without dead ends: 2914 [2021-12-18 01:30:18,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2021-12-18 01:30:18,077 INFO L933 BasicCegarLoop]: 817 mSDtfsCounter, 1110 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 2553 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 3971 SdHoareTripleChecker+Invalid, 3016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 2553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-12-18 01:30:18,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1155 Valid, 3971 Invalid, 3016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 2553 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2021-12-18 01:30:18,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2021-12-18 01:30:18,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 2311. [2021-12-18 01:30:18,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2311 states, 1750 states have (on average 1.3851428571428572) internal successors, (2424), 1790 states have internal predecessors, (2424), 411 states have call successors, (411), 125 states have call predecessors, (411), 149 states have return successors, (565), 432 states have call predecessors, (565), 409 states have call successors, (565) [2021-12-18 01:30:18,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2311 states to 2311 states and 3400 transitions. [2021-12-18 01:30:18,170 INFO L78 Accepts]: Start accepts. Automaton has 2311 states and 3400 transitions. Word has length 77 [2021-12-18 01:30:18,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:30:18,171 INFO L470 AbstractCegarLoop]: Abstraction has 2311 states and 3400 transitions. [2021-12-18 01:30:18,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-18 01:30:18,172 INFO L276 IsEmpty]: Start isEmpty. Operand 2311 states and 3400 transitions. [2021-12-18 01:30:18,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-18 01:30:18,177 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:30:18,177 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:30:18,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 01:30:18,177 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:30:18,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:30:18,178 INFO L85 PathProgramCache]: Analyzing trace with hash -253002884, now seen corresponding path program 1 times [2021-12-18 01:30:18,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:30:18,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138401152] [2021-12-18 01:30:18,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:30:18,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:30:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:20,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:30:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:20,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:30:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:20,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:30:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:21,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 01:30:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:21,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 01:30:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:21,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 01:30:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:21,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 01:30:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:21,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 01:30:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:21,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 01:30:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:21,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 01:30:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:21,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 01:30:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:21,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:30:21,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:30:21,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138401152] [2021-12-18 01:30:21,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138401152] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:30:21,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:30:21,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-18 01:30:21,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454526099] [2021-12-18 01:30:21,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:30:21,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-18 01:30:21,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:30:21,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-18 01:30:21,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-18 01:30:21,206 INFO L87 Difference]: Start difference. First operand 2311 states and 3400 transitions. Second operand has 12 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 5 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-18 01:30:23,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:30:30,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:30:30,227 INFO L93 Difference]: Finished difference Result 4602 states and 7106 transitions. [2021-12-18 01:30:30,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-18 01:30:30,228 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 5 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 93 [2021-12-18 01:30:30,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:30:30,240 INFO L225 Difference]: With dead ends: 4602 [2021-12-18 01:30:30,241 INFO L226 Difference]: Without dead ends: 2908 [2021-12-18 01:30:30,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2021-12-18 01:30:30,249 INFO L933 BasicCegarLoop]: 824 mSDtfsCounter, 1075 mSDsluCounter, 4679 mSDsCounter, 0 mSdLazyCounter, 4150 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 5503 SdHoareTripleChecker+Invalid, 4606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 4150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-12-18 01:30:30,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 5503 Invalid, 4606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 4150 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2021-12-18 01:30:30,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-12-18 01:30:30,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2302. [2021-12-18 01:30:30,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 1743 states have (on average 1.3861158921399885) internal successors, (2416), 1784 states have internal predecessors, (2416), 411 states have call successors, (411), 125 states have call predecessors, (411), 147 states have return successors, (557), 429 states have call predecessors, (557), 409 states have call successors, (557) [2021-12-18 01:30:30,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3384 transitions. [2021-12-18 01:30:30,322 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3384 transitions. Word has length 93 [2021-12-18 01:30:30,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:30:30,322 INFO L470 AbstractCegarLoop]: Abstraction has 2302 states and 3384 transitions. [2021-12-18 01:30:30,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 5 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-18 01:30:30,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3384 transitions. [2021-12-18 01:30:30,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-18 01:30:30,324 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:30:30,325 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:30:30,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 01:30:30,325 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:30:30,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:30:30,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1961504236, now seen corresponding path program 1 times [2021-12-18 01:30:30,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:30:30,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047441202] [2021-12-18 01:30:30,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:30:30,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:30:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:30,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:30:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:30,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:30:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:30,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:30:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:30,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 01:30:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:30,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 01:30:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:30,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 01:30:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:30,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 01:30:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:30,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 01:30:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:30,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 01:30:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:30,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 01:30:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:30,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 01:30:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:30,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:30:30,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:30:30,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047441202] [2021-12-18 01:30:30,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047441202] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:30:30,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:30:30,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 01:30:30,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136934333] [2021-12-18 01:30:30,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:30:30,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 01:30:30,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:30:30,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 01:30:30,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-18 01:30:30,768 INFO L87 Difference]: Start difference. First operand 2302 states and 3384 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-18 01:30:32,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:30:34,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:30:35,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:30:40,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:30:40,924 INFO L93 Difference]: Finished difference Result 5655 states and 8903 transitions. [2021-12-18 01:30:40,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-18 01:30:40,924 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 95 [2021-12-18 01:30:40,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:30:40,947 INFO L225 Difference]: With dead ends: 5655 [2021-12-18 01:30:40,948 INFO L226 Difference]: Without dead ends: 4796 [2021-12-18 01:30:40,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2021-12-18 01:30:40,952 INFO L933 BasicCegarLoop]: 859 mSDtfsCounter, 4685 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 4274 mSolverCounterSat, 2241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4757 SdHoareTripleChecker+Valid, 3242 SdHoareTripleChecker+Invalid, 6515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2241 IncrementalHoareTripleChecker+Valid, 4274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-12-18 01:30:40,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4757 Valid, 3242 Invalid, 6515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2241 Valid, 4274 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2021-12-18 01:30:40,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4796 states. [2021-12-18 01:30:41,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4796 to 3885. [2021-12-18 01:30:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3885 states, 2929 states have (on average 1.3717992488904063) internal successors, (4018), 2987 states have internal predecessors, (4018), 697 states have call successors, (697), 199 states have call predecessors, (697), 258 states have return successors, (1276), 762 states have call predecessors, (1276), 695 states have call successors, (1276) [2021-12-18 01:30:41,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 5991 transitions. [2021-12-18 01:30:41,086 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 5991 transitions. Word has length 95 [2021-12-18 01:30:41,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:30:41,086 INFO L470 AbstractCegarLoop]: Abstraction has 3885 states and 5991 transitions. [2021-12-18 01:30:41,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-18 01:30:41,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5991 transitions. [2021-12-18 01:30:41,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-18 01:30:41,089 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:30:41,089 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:30:41,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 01:30:41,090 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:30:41,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:30:41,090 INFO L85 PathProgramCache]: Analyzing trace with hash 127263836, now seen corresponding path program 1 times [2021-12-18 01:30:41,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:30:41,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110763139] [2021-12-18 01:30:41,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:30:41,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:30:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:41,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:30:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:41,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:30:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:41,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 01:30:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:41,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 01:30:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:41,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 01:30:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:41,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 01:30:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:41,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 01:30:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:41,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 01:30:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:41,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 01:30:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:41,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 01:30:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:41,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 01:30:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:41,387 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:30:41,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:30:41,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110763139] [2021-12-18 01:30:41,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110763139] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 01:30:41,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573957276] [2021-12-18 01:30:41,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:30:41,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:30:41,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:30:41,390 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 01:30:41,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 01:30:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:30:42,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 8297 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 01:30:42,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:30:42,682 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:30:42,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:30:42,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573957276] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:30:42,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 01:30:42,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 8 [2021-12-18 01:30:42,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798227009] [2021-12-18 01:30:42,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:30:42,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 01:30:42,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:30:42,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 01:30:42,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-18 01:30:42,684 INFO L87 Difference]: Start difference. First operand 3885 states and 5991 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 01:30:42,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:30:42,869 INFO L93 Difference]: Finished difference Result 7153 states and 11037 transitions. [2021-12-18 01:30:42,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 01:30:42,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2021-12-18 01:30:42,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:30:42,886 INFO L225 Difference]: With dead ends: 7153 [2021-12-18 01:30:42,887 INFO L226 Difference]: Without dead ends: 3885 [2021-12-18 01:30:42,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-18 01:30:42,915 INFO L933 BasicCegarLoop]: 1044 mSDtfsCounter, 217 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 2712 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 01:30:42,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 2712 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 01:30:42,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2021-12-18 01:30:43,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3885. [2021-12-18 01:30:43,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3885 states, 2929 states have (on average 1.3700921816319562) internal successors, (4013), 2987 states have internal predecessors, (4013), 697 states have call successors, (697), 199 states have call predecessors, (697), 258 states have return successors, (1276), 762 states have call predecessors, (1276), 695 states have call successors, (1276) [2021-12-18 01:30:43,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 5986 transitions. [2021-12-18 01:30:43,031 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 5986 transitions. Word has length 96 [2021-12-18 01:30:43,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:30:43,031 INFO L470 AbstractCegarLoop]: Abstraction has 3885 states and 5986 transitions. [2021-12-18 01:30:43,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 01:30:43,032 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5986 transitions. [2021-12-18 01:30:43,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-18 01:30:43,034 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:30:43,034 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:30:43,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-18 01:30:43,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-18 01:30:43,242 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:30:43,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:30:43,242 INFO L85 PathProgramCache]: Analyzing trace with hash 112255749, now seen corresponding path program 1 times [2021-12-18 01:30:43,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:30:43,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968966745] [2021-12-18 01:30:43,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:30:43,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:30:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 01:30:44,860 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-18 01:30:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 01:30:46,451 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-18 01:30:46,451 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-18 01:30:46,452 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-18 01:30:46,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 01:30:46,455 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:30:46,457 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-18 01:30:46,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 01:30:46 BoogieIcfgContainer [2021-12-18 01:30:46,565 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-18 01:30:46,566 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-18 01:30:46,566 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-18 01:30:46,566 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-18 01:30:46,566 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 01:29:22" (3/4) ... [2021-12-18 01:30:46,569 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-18 01:30:46,569 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-18 01:30:46,569 INFO L158 Benchmark]: Toolchain (without parser) took 133801.06ms. Allocated memory was 100.7MB in the beginning and 824.2MB in the end (delta: 723.5MB). Free memory was 65.7MB in the beginning and 469.5MB in the end (delta: -403.8MB). Peak memory consumption was 319.3MB. Max. memory is 16.1GB. [2021-12-18 01:30:46,569 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory was 82.5MB in the beginning and 82.4MB in the end (delta: 105.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 01:30:46,570 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2861.10ms. Allocated memory was 100.7MB in the beginning and 218.1MB in the end (delta: 117.4MB). Free memory was 65.7MB in the beginning and 83.2MB in the end (delta: -17.5MB). Peak memory consumption was 98.6MB. Max. memory is 16.1GB. [2021-12-18 01:30:46,570 INFO L158 Benchmark]: Boogie Procedure Inliner took 310.62ms. Allocated memory is still 218.1MB. Free memory was 83.2MB in the beginning and 102.8MB in the end (delta: -19.6MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2021-12-18 01:30:46,571 INFO L158 Benchmark]: Boogie Preprocessor took 148.59ms. Allocated memory is still 218.1MB. Free memory was 102.8MB in the beginning and 78.7MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-18 01:30:46,571 INFO L158 Benchmark]: RCFGBuilder took 45914.13ms. Allocated memory was 218.1MB in the beginning and 824.2MB in the end (delta: 606.1MB). Free memory was 78.7MB in the beginning and 495.4MB in the end (delta: -416.7MB). Peak memory consumption was 472.1MB. Max. memory is 16.1GB. [2021-12-18 01:30:46,571 INFO L158 Benchmark]: TraceAbstraction took 84557.38ms. Allocated memory is still 824.2MB. Free memory was 495.4MB in the beginning and 469.5MB in the end (delta: 25.9MB). Peak memory consumption was 261.8MB. Max. memory is 16.1GB. [2021-12-18 01:30:46,571 INFO L158 Benchmark]: Witness Printer took 3.25ms. Allocated memory is still 824.2MB. Free memory is still 469.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 01:30:46,572 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory was 82.5MB in the beginning and 82.4MB in the end (delta: 105.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2861.10ms. Allocated memory was 100.7MB in the beginning and 218.1MB in the end (delta: 117.4MB). Free memory was 65.7MB in the beginning and 83.2MB in the end (delta: -17.5MB). Peak memory consumption was 98.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 310.62ms. Allocated memory is still 218.1MB. Free memory was 83.2MB in the beginning and 102.8MB in the end (delta: -19.6MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 148.59ms. Allocated memory is still 218.1MB. Free memory was 102.8MB in the beginning and 78.7MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * RCFGBuilder took 45914.13ms. Allocated memory was 218.1MB in the beginning and 824.2MB in the end (delta: 606.1MB). Free memory was 78.7MB in the beginning and 495.4MB in the end (delta: -416.7MB). Peak memory consumption was 472.1MB. Max. memory is 16.1GB. * TraceAbstraction took 84557.38ms. Allocated memory is still 824.2MB. Free memory was 495.4MB in the beginning and 469.5MB in the end (delta: 25.9MB). Peak memory consumption was 261.8MB. Max. memory is 16.1GB. * Witness Printer took 3.25ms. Allocated memory is still 824.2MB. Free memory is still 469.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 7097]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6835, overapproximation of bitwiseAnd at line 6930. Possible FailurePath: [L4814] int gigaset_debuglevel ; [L6831] static struct list_head drivers = {& drivers, & drivers}; [L6832-L6836] static spinlock_t driver_lock = {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "driver_lock", 0, 0UL}}}}; [L7093] int LDV_IN_INTERRUPT ; [L7101] int ldv_module_refcounter = 1; [L7611-L7632] static struct tty_operations const if_ops = {(struct tty_struct *(*)(struct tty_driver * , struct inode * , int ))0, (int (*)(struct tty_driver * , struct tty_struct * ))0, (void (*)(struct tty_driver * , struct tty_struct * ))0, & if_open, & if_close, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, & if_write, (int (*)(struct tty_struct * , unsigned char ))0, (void (*)(struct tty_struct * ))0, & if_write_room, & if_chars_in_buffer, & if_ioctl, (long (*)(struct tty_struct * , unsigned int , unsigned long ))0, & if_set_termios, & if_throttle, & if_unthrottle, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, (int (*)(struct tty_struct * , int ))0, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * , int ))0, (void (*)(struct tty_struct * , char ))0, & if_tiocmget, & if_tiocmset, (int (*)(struct tty_struct * , struct winsize * ))0, (int (*)(struct tty_struct * , struct termiox * ))0, (int (*)(struct tty_struct * , struct serial_icounter_struct * ))0, (int (*)(struct tty_driver * , int , char * ))0, (int (*)(struct tty_driver * , int ))0, (void (*)(struct tty_driver * , int , char ))0, (struct file_operations const *)0}; [L9090-L9093] static struct device_attribute dev_attr_cidmode = {{"cidmode", 420U, (struct lock_class_key *)0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, & show_cidmode, & set_cidmode}; [L9169-L9233] struct reply_t gigaset_tab_nocid[64U] = { {-27, -1, -1, 100, 100, 1, {29, 0, 0}, (char *)0}, {-105, 100, 100, -1, 101, 3, {0, 0, 0}, (char *)"Z\r"}, {0, 101, 103, -1, 120, 5, {30, 0, 0}, (char *)"+GMR\r"}, {-105, 101, 101, -1, 102, 5, {0, 0, 0}, (char *)"Z\r"}, {1, 101, 101, -1, 102, 5, {0, 0, 0}, (char *)"Z\r"}, {-105, 102, 102, -1, 108, 5, {1, 0, 0}, (char *)"^SDLE=0\r"}, {0, 108, 108, -1, 104, -1, {0, 0, 0}, (char *)0}, {101, 104, 104, 0, 103, 5, {0, 0, 0}, (char *)"Z\r"}, {-105, 104, 104, -1, 0, 0, {3, 0, 0}, (char *)0}, {1, 108, 108, -1, 0, 0, {3, 0, 0}, (char *)0}, {-105, 108, 108, -1, 105, 2, {2, 4, 29}, (char *)0}, {-105, 105, 105, -1, 103, 5, {0, 0, 0}, (char *)"Z\r"}, {1, 102, 102, -1, 107, 5, {0, 0, 0}, (char *)"^GETPRE\r"}, {0, 107, 107, -1, 0, 0, {5, 0, 0}, (char *)0}, {1, 107, 107, -1, 0, 0, {3, 0, 0}, (char *)0}, {-105, 107, 107, -1, 0, 0, {3, 0, 0}, (char *)0}, {1, 103, 103, -1, 0, 0, {3, 0, 0}, (char *)0}, {-105, 103, 103, -1, 0, 0, {3, 0, 0}, (char *)0}, {-20, 120, 120, -1, 121, -1, {31, 0, 0}, (char *)0}, {-105, 120, 121, -1, 0, 0, {32, 6, 0}, (char *)0}, {1, 120, 121, -1, 0, 0, {32, 6, 0}, (char *)0}, {0, 121, 121, -1, 0, 0, {33, 6, 0}, (char *)0}, {-27, 0, 0, 200, 201, 5, {0, 0, 0}, (char *)"^SDLE=0\r"}, {0, 201, 201, -1, 202, -1, {0, 0, 0}, (char *)0}, {101, 202, 202, 0, 0, 0, {7, 0, 0}, (char *)0}, {-9, 200, 249, -1, 0, 0, {47, 0, 0}, (char *)0}, {1, 200, 249, -1, 0, 0, {9, 0, 0}, (char *)0}, {-105, 200, 249, -1, 0, 0, {9, 0, 0}, (char *)0}, {-27, 0, 0, 250, 251, 5, {0, 0, 0}, (char *)"^SDLE=1\r"}, {0, 251, 251, -1, 252, -1, {0, 0, 0}, (char *)0}, {101, 252, 252, 1, 0, 0, {8, 0, 0}, (char *)0}, {1, 250, 299, -1, 0, 0, {10, 0, 0}, (char *)0}, {-105, 250, 299, -1, 0, 0, {10, 0, 0}, (char *)0}, {4, -1, -1, -1, -1, -1, {11, 0, 0}, (char *)0}, {-27, 0, 0, 300, 301, 5, {0, 0, 0}, (char *)"^SGCI?\r"}, {0, 301, 301, -1, 302, -1, {0, 0, 0}, (char *)0}, {3, 302, 302, -1, 0, 0, {12, 0, 0}, (char *)0}, {1, 301, 349, -1, 0, 0, {13, 0, 0}, (char *)0}, {-105, 301, 349, -1, 0, 0, {13, 0, 0}, (char *)0}, {-27, 0, 0, 10, 150, 5, {0, 0, 0}, (char *)"^SGCI=1\r"}, {0, 150, 150, -1, 0, 0, {54, 0, 0}, (char *)0}, {1, 150, 150, -1, 0, 0, {55, 0, 0}, (char *)0}, {-105, 150, 150, -1, 0, 0, {55, 0, 0}, (char *)0}, {-27, 0, 0, 11, 160, 5, {0, 0, 0}, (char *)"Z\r"}, {0, 160, 160, -1, 0, 0, {52, 0, 0}, (char *)0}, {1, 160, 160, -1, 0, 0, {53, 0, 0}, (char *)0}, {-105, 160, 160, -1, 0, 0, {53, 0, 0}, (char *)0}, {-27, 0, 0, 350, 0, 0, {36, 0, 0}, (char *)0}, {-27, 0, 0, 500, 504, 5, {0, 0, 0}, (char *)"Z\r"}, {0, 504, 504, -1, 0, 0, {14, 0, 0}, (char *)0}, {1, 501, 599, -1, 0, 0, {15, 0, 0}, (char *)0}, {-105, 501, 599, -1, 0, 0, {15, 0, 0}, (char *)0}, {-9, 501, 599, -1, 0, 0, {49, 0, 0}, (char *)0}, {-107, -1, -1, -1, -1, -1, {51, 0, 0}, (char *)0}, {-112, -1, -1, -1, -1, -1, {44, 0, 0}, (char *)0}, {-106, -1, -1, -1, -1, -1, {56, 0, 0}, (char *)0}, {-110, -1, -1, -1, -1, -1, {45, 0, 0}, (char *)0}, {-111, -1, -1, -1, -1, -1, {46, 0, 0}, (char *)0}, {-108, -1, -1, -1, -1, -1, {50, 0, 0}, (char *)0}, {1, -1, -1, -1, -1, -1, {35, 0, 0}, (char *)0}, {6, -1, -1, -1, -1, -1, {37, 0, 0}, (char *)0}, {-19, -1, -1, -1, -1, -1, {16, 0, 0}, (char *)0}, {-26, -1, -1, -1, -1, -1, {17, 0, 0}, (char *)0}, {-28, 0, 0, 0, 0, 0, {0, 0, 0}, (char *)0}}; [L9234-L9298] struct reply_t gigaset_tab_cid[64U] = { {-115, -1, -1, -1, -1, -1, {40, 0, 0}, (char *)0}, {-27, 0, 0, 600, 601, 5, {103, 0, 0}, (char *)0}, {0, 601, 601, -1, 603, 5, {104, 0, 0}, (char *)0}, {0, 603, 603, -1, 604, 5, {105, 0, 0}, (char *)0}, {0, 604, 604, -1, 605, 5, {102, 0, 0}, (char *)0}, {-21, 605, 605, -1, 606, 5, {106, 0, 0}, (char *)0}, {0, 605, 605, -1, 606, 5, {106, 0, 0}, (char *)0}, {-21, 606, 606, -1, 607, 5, {100, 0, 0}, (char *)0}, {0, 606, 606, -1, 607, 5, {100, 0, 0}, (char *)0}, {0, 607, 607, -1, 608, 5, {0, 0, 0}, (char *)"+VLS=17\r"}, {0, 608, 608, -1, 609, -1, {0, 0, 0}, (char *)0}, {100, 609, 609, 1, 610, 5, {101, 0, 0}, (char *)0}, {0, 610, 610, -1, 650, 0, {18, 0, 0}, (char *)0}, {1, 601, 610, -1, 0, 0, {19, 0, 0}, (char *)0}, {-105, 601, 610, -1, 0, 0, {19, 0, 0}, (char *)0}, {-117, 650, 650, -1, 651, -1, {0, 0, 0}, (char *)0}, {5, 609, 651, 17, -1, -1, {16, 0, 0}, (char *)0}, {102, 610, 651, -1, -1, -1, {16, 0, 0}, (char *)0}, {104, 610, 651, -1, -1, -1, {16, 0, 0}, (char *)0}, {100, 650, 651, 2, -1, -1, {16, 0, 0}, (char *)0}, {100, 650, 650, 3, 800, -1, {21, 0, 0}, (char *)0}, {100, 651, 651, 3, 800, -1, {21, 39, 0}, (char *)0}, {100, 750, 750, 3, 800, -1, {21, 0, 0}, (char *)0}, {100, 751, 751, 3, 800, -1, {21, 39, 0}, (char *)0}, {-117, 800, 800, -1, 800, -1, {39, 0, 0}, (char *)0}, {100, 650, 651, 4, 0, 0, {22, 0, 0}, (char *)0}, {100, 750, 751, 4, 0, 0, {24, 0, 0}, (char *)0}, {100, 800, 800, 4, 0, 0, {24, 0, 0}, (char *)0}, {-116, -1, -1, -1, -1, -1, {43, 0, 0}, (char *)0}, {-27, -1, -1, 400, 401, 5, {0, 0, 0}, (char *)"+VLS=0\r"}, {0, 401, 401, -1, 402, 5, {0, 0, 0}, (char *)0}, {5, 402, 402, 0, 403, 5, {0, 0, 0}, (char *)0}, {100, 403, 403, 6, -1, -1, {16, 0, 0}, (char *)0}, {100, 403, 403, 5, 0, 0, {20, 0, 0}, (char *)0}, {-9, 401, 403, -1, 0, 0, {48, 0, 0}, (char *)0}, {1, 401, 401, -1, 0, 0, {25, 0, 0}, (char *)0}, {-105, 401, 403, -1, 0, 0, {25, 0, 0}, (char *)0}, {-118, 0, 0, -1, 0, -1, {38, 0, 0}, (char *)0}, {106, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0}, {107, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0}, {103, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0}, {104, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0}, {102, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0}, {-105, 700, 700, -1, 720, 720, {26, 0, 0}, (char *)0}, {-118, 720, 720, -1, 0, -1, {38, 0, 0}, (char *)0}, {-114, -1, -1, -1, -1, -1, {41, 0, 0}, (char *)0}, {-27, 720, 720, 720, 721, 5, {104, 0, 0}, (char *)0}, {0, 721, 721, -1, 722, 5, {100, 0, 0}, (char *)0}, {0, 722, 722, -1, 723, 5, {0, 0, 0}, (char *)"+VLS=17\r"}, {0, 723, 723, -1, 724, 5, {0, 0, 0}, (char *)0}, {5, 724, 724, 17, 750, 50, {27, 0, 0}, (char *)0}, {1, 721, 729, -1, 0, 0, {28, 0, 0}, (char *)0}, {-105, 721, 729, -1, 0, 0, {28, 0, 0}, (char *)0}, {100, 700, 729, 5, 0, 0, {28, 0, 0}, (char *)0}, {100, 700, 729, 3, 0, 0, {28, 0, 0}, (char *)0}, {100, 700, 729, 4, 0, 0, {28, 0, 0}, (char *)0}, {-117, 750, 750, -1, 751, -1, {0, 0, 0}, (char *)0}, {-105, 750, 751, -1, 0, 0, {23, 0, 0}, (char *)0}, {-118, -1, -1, -1, -1, -1, {38, 0, 0}, (char *)0}, {105, -1, -1, -1, -1, -1, {16, 0, 0}, (char *)0}, {6, -1, -1, -1, -1, -1, {37, 0, 0}, (char *)0}, {-19, -1, -1, -1, -1, -1, {16, 0, 0}, (char *)0}, {-26, -1, -1, -1, -1, -1, {17, 0, 0}, (char *)0}, {-28, 0, 0, 0, 0, 0, {0, 0, 0}, (char *)0}}; [L9299-L9314] static struct resp_type_t const resp_type[15U] = { {(unsigned char *)"OK", 0, 0}, {(unsigned char *)"ERROR", 1, 0}, {(unsigned char *)"ZSAU", 100, 1}, {(unsigned char *)"ZCAU", 6, 6}, {(unsigned char *)"RING", 4, 2}, {(unsigned char *)"ZGCI", 3, 3}, {(unsigned char *)"ZVLS", 5, 3}, {(unsigned char *)"ZCTP", 102, 3}, {(unsigned char *)"ZDLE", 101, 3}, {(unsigned char *)"ZHLC", 107, 4}, {(unsigned char *)"ZBC", 106, 4}, {(unsigned char *)"NMBR", 103, 4}, {(unsigned char *)"ZCPN", 104, 4}, {(unsigned char *)"ZCON", 105, 4}, {(unsigned char *)0, 0, 0}}; [L9315-L9321] static struct zsau_resp_t const zsau_resp[7U] = { {(unsigned char *)"OUTGOING_CALL_PROCEEDING", 1}, {(unsigned char *)"CALL_DELIVERED", 2}, {(unsigned char *)"ACTIVE", 3}, {(unsigned char *)"DISCONNECT_IND", 4}, {(unsigned char *)"NULL", 5}, {(unsigned char *)"DISCONNECT_REQ", 6}, {(unsigned char *)0, -1}}; [L13314-L13343] static struct __anonstruct_cip2bchlc_198 cip2bchlc[29U] = { {(u8 *)0, (u8 *)0}, {(u8 *)"8090A3", (u8 *)0}, {(u8 *)"8890", (u8 *)0}, {(u8 *)"8990", (u8 *)0}, {(u8 *)"9090A3", (u8 *)0}, {(u8 *)"9190", (u8 *)0}, {(u8 *)"9890", (u8 *)0}, {(u8 *)"88C0C6E6", (u8 *)0}, {(u8 *)"8890218F", (u8 *)0}, {(u8 *)"9190A5", (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)"8090A3", (u8 *)"9181"}, {(u8 *)"9090A3", (u8 *)"9184"}, {(u8 *)"8890", (u8 *)"91A1"}, {(u8 *)"8890", (u8 *)"91A4"}, {(u8 *)"8890", (u8 *)"91A8"}, {(u8 *)"8890", (u8 *)"91B1"}, {(u8 *)"8890", (u8 *)"91B2"}, {(u8 *)"8890", (u8 *)"91B5"}, {(u8 *)"8890", (u8 *)"91B8"}, {(u8 *)"8890", (u8 *)"91C1"}, {(u8 *)"9190A5", (u8 *)"9181"}, {(u8 *)"9190A5", (u8 *)"916001"}, {(u8 *)"8890", (u8 *)"916002"}}; [L16141] static unsigned long ignored_msg_dump_time ; [L16193-L16217] static struct __anonstruct_capi_send_handler_table_202 capi_send_handler_table[24U] = { {(u16 )34432U, & do_data_b3_req}, {(u16 )34435U, & do_data_b3_resp}, {(u16 )384U, & do_alert_req}, {(u16 )899U, & do_nothing}, {(u16 )33667U, & do_nothing}, {(u16 )33408U, & do_connect_b3_req}, {(u16 )33411U, & do_connect_b3_resp}, {(u16 )34947U, & do_nothing}, {(u16 )640U, & do_connect_req}, {(u16 )643U, & do_connect_resp}, {(u16 )33920U, & do_disconnect_b3_req}, {(u16 )33923U, & do_nothing}, {(u16 )1152U, & do_disconnect_req}, {(u16 )1155U, & do_nothing}, {(u16 )32896U, & do_facility_req}, {(u16 )32899U, & do_nothing}, {(u16 )1408U, & do_listen_req}, {(u16 )16768U, & do_unsupported}, {(u16 )34688U, & do_reset_b3_req}, {(u16 )34691U, & do_nothing}, {(u16 )2176U, & do_unsupported}, {(u16 )2179U, & do_nothing}, {(u16 )65408U, & do_nothing}, {(u16 )65411U, & do_nothing}}; [L16578-L16607] static struct file_operations const gigaset_proc_fops = {& __this_module, & seq_lseek, & seq_read, (ssize_t (*)(struct file * , char const * , size_t , loff_t * ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, (unsigned int (*)(struct file * , struct poll_table_struct * ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & gigaset_proc_open, (int (*)(struct file * , fl_owner_t ))0, & single_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L16666-L16669] static struct capi_driver capi_driver_gigaset = {{(char )'g', (char )'i', (char )'g', (char )'a', (char )'s', (char )'e', (char )'t', (char )'\000'}, {(char )'1', (char )'.', (char )'0', (char )'\000'}, (int (*)(struct capi_driver * , capicardparams * ))0, {(struct list_head *)0, (struct list_head *)0}}; VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8811] struct tty_struct *var_group1 ; [L8812] struct file *var_group2 ; [L8813] int res_if_open_2 ; [L8814] unsigned int var_if_ioctl_4_p1 ; [L8815] unsigned long var_if_ioctl_4_p2 ; [L8816] unsigned char const *var_if_write_7_p1 ; [L8817] int var_if_write_7_p2 ; [L8818] struct ktermios *var_group3 ; [L8819] unsigned int var_if_tiocmset_6_p1 ; [L8820] unsigned int var_if_tiocmset_6_p2 ; [L8821] int ldv_s_if_ops_tty_operations ; [L8822] int tmp ; [L8823] int tmp___0 ; VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8826] CALL, EXPR ldv_malloc(sizeof(struct list_head)) VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8805] COND TRUE __VERIFIER_nondet_bool() [L8805] return 0; VAL [\old(size)=16, \result={0:0}, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, size=16, zsau_resp={698:0}] [L8826] RET, EXPR ldv_malloc(sizeof(struct list_head)) VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_malloc(sizeof(struct list_head))={0:0}, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8826] drivers.prev = ldv_malloc(sizeof(struct list_head)) [L8827] CALL, EXPR ldv_malloc(sizeof(struct list_head)) VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8805] COND TRUE __VERIFIER_nondet_bool() [L8805] return 0; VAL [\old(size)=16, \result={0:0}, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, size=16, zsau_resp={698:0}] [L8827] RET, EXPR ldv_malloc(sizeof(struct list_head)) VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_malloc(sizeof(struct list_head))={0:0}, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8827] drivers.next = ldv_malloc(sizeof(struct list_head)) [L8828] ldv_s_if_ops_tty_operations = 0 [L8829] LDV_IN_INTERRUPT = 1 [L8830] FCALL ldv_initialize() [L8948] tmp___0 = __VERIFIER_nondet_int() [L8950] COND TRUE tmp___0 != 0 VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_if_ops_tty_operations=0, resp_type={697:0}, tmp___0=1, zsau_resp={698:0}] [L8835] tmp = __VERIFIER_nondet_int() [L8837] COND TRUE tmp == 0 VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_if_ops_tty_operations=0, resp_type={697:0}, tmp=0, tmp___0=1, zsau_resp={698:0}] [L8873] COND TRUE ldv_s_if_ops_tty_operations == 0 VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_if_ops_tty_operations=0, resp_type={697:0}, tmp=0, tmp___0=1, zsau_resp={698:0}] [L8875] CALL, EXPR if_open(var_group1, var_group2) VAL [\old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L7634] struct cardstate *cs ; [L7635] unsigned long flags ; [L7636] long tmp ; [L7637] int tmp___0 ; [L7638] int tmp___1 ; [L7639] raw_spinlock_t *tmp___2 ; [L7642-L7643] tmp = __builtin_expect((long )(((unsigned int )gigaset_debuglevel & 524288U) != 0U), 0L) VAL [\old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={1152921504606846993:1152921504606846979}, filp={1152921504606846993:1152921504606846979}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tmp=1, tty={691:-531}, tty={691:-531}, zsau_resp={698:0}] [L7645] COND TRUE tmp != 0L [L7647] EXPR tty->driver [L7647] (tty->driver)->minor_start [L7647] tty->index [L7652] tty->driver_data = (void *)0 [L7653] CALL, EXPR gigaset_get_cs_by_tty(tty) [L6958] struct cardstate *tmp ; [L6960] EXPR tty->index VAL [\old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tty={691:-531}, tty={691:-531}, tty->index=0, zsau_resp={698:0}] [L6960] COND FALSE !(tty->index < 0) [L6963] EXPR tty->index [L6963] EXPR tty->driver [L6963] EXPR (tty->driver)->num VAL [(tty->driver)->num=705, \old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tty={691:-531}, tty={691:-531}, tty->driver={1152921504606846977:0}, tty->index=0, zsau_resp={698:0}] [L6963] COND FALSE !(tty->index >= (tty->driver)->num) [L6968] EXPR tty->index [L6968] EXPR tty->driver [L6968] EXPR (tty->driver)->minor_start [L6968] CALL, EXPR gigaset_get_cs_by_minor((unsigned int )(tty->index + (tty->driver)->minor_start)) [L6902] unsigned long flags ; [L6903] struct cardstate *ret ; [L6904] struct gigaset_driver *drv ; [L6905] unsigned int index ; [L6906] raw_spinlock_t *tmp ; [L6907] struct list_head const *__mptr ; [L6908] struct list_head const *__mptr___0 ; [L6911] ret = (struct cardstate *)0 VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, zsau_resp={698:0}] [L6912] CALL, EXPR spinlock_check(& driver_lock) VAL [\old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, lock={692:0}, resp_type={697:0}, zsau_resp={698:0}] [L4691] return (& lock->ldv_6060.rlock); VAL [\old(ldv_module_refcounter)=1, \result={692:0}, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, lock={692:0}, lock={692:0}, resp_type={697:0}, zsau_resp={698:0}] [L6912] RET, EXPR spinlock_check(& driver_lock) VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, spinlock_check(& driver_lock)={692:0}, zsau_resp={698:0}] [L6912] tmp = spinlock_check(& driver_lock) [L6913] CALL, EXPR _raw_spin_lock_irqsave(tmp) VAL [\old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, arg0={692:0}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L16743] return __VERIFIER_nondet_ulong(); [L6913] RET, EXPR _raw_spin_lock_irqsave(tmp) VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __this_module={1152921504606846992:1152921504606847002}, _raw_spin_lock_irqsave(tmp)=1152921504606847007, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6913] flags = _raw_spin_lock_irqsave(tmp) [L6914] EXPR drivers.next [L6914] __mptr = (struct list_head const *)drivers.next [L6915] drv = (struct gigaset_driver *)__mptr VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=1152921504606847007, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6945] COND TRUE (unsigned long )(& drv->list) != (unsigned long )(& drivers) VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=1152921504606847007, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6919] EXPR drv->minor VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, drv->minor=0, flags=1152921504606847007, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6919] COND FALSE !(drv->minor > minor) [L6922] EXPR drv->minor [L6922] EXPR drv->minors VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, drv->minor=0, drv->minors=4294967297, flags=1152921504606847007, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6922] COND FALSE !(drv->minor + drv->minors <= minor) [L6927] EXPR drv->minor [L6927] index = minor - drv->minor [L6928] CALL spin_lock(& drv->lock) VAL [\old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L4698] FCALL _raw_spin_lock(& lock->ldv_6060.rlock) [L6928] RET spin_lock(& drv->lock) VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=1152921504606847007, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6930] EXPR drv->cs [L6930] EXPR (drv->cs + (unsigned long )index)->flags VAL [(drv->cs + (unsigned long )index)->flags=1152921504606846996, \old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, drv->cs={691:0}, flags=1152921504606847007, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6930] COND TRUE (int )(drv->cs + (unsigned long )index)->flags & 1 [L6931] EXPR drv->cs [L6931] ret = drv->cs + (unsigned long )index [L6935] CALL spin_unlock(& drv->lock) VAL [\old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L4707] FCALL _raw_spin_unlock(& lock->ldv_6060.rlock) [L6935] RET spin_unlock(& drv->lock) VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=1152921504606847007, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={691:0}, tmp={692:0}, zsau_resp={698:0}] [L6937] COND TRUE (unsigned long )ret != (unsigned long )((struct cardstate *)0) VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=1152921504606847007, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={691:0}, tmp={692:0}, zsau_resp={698:0}] [L6952] CALL spin_unlock_irqrestore(& driver_lock, flags) VAL [\old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L4716] FCALL _raw_spin_unlock_irqrestore(& lock->ldv_6060.rlock, flags) [L6952] RET spin_unlock_irqrestore(& driver_lock, flags) VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=1152921504606847007, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={691:0}, tmp={692:0}, zsau_resp={698:0}] [L6954] return (ret); VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, \result={691:0}, __mptr={0:0}, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=1152921504606847007, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={691:0}, tmp={692:0}, zsau_resp={698:0}] [L6968] RET, EXPR gigaset_get_cs_by_minor((unsigned int )(tty->index + (tty->driver)->minor_start)) [L6968] tmp = gigaset_get_cs_by_minor((unsigned int )(tty->index + (tty->driver)->minor_start)) [L6970] return (tmp); VAL [\old(ldv_module_refcounter)=1, \result={691:0}, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tmp={691:0}, tty={691:-531}, tty={691:-531}, zsau_resp={698:0}] [L7653] RET, EXPR gigaset_get_cs_by_tty(tty) [L7653] cs = gigaset_get_cs_by_tty(tty) [L7655] COND FALSE !((unsigned long )cs == (unsigned long )((struct cardstate *)0)) [L7659] EXPR cs->driver [L7659] EXPR (cs->driver)->owner VAL [(cs->driver)->owner={706:-705}, \old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:0}, cs->driver={0:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={1152921504606846993:1152921504606846979}, filp={1152921504606846993:1152921504606846979}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tmp=1, tty={691:-531}, tty={691:-531}, zsau_resp={698:0}] [L7659] CALL, EXPR ldv_try_module_get_1((cs->driver)->owner) VAL [\old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L7175] int tmp ; [L7178] CALL, EXPR ldv_try_module_get(module) [L7113] int module_get_succeeded ; VAL [\old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={706:-705}, module={706:-705}, resp_type={697:0}, zsau_resp={698:0}] [L7115] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) [L7117] CALL, EXPR ldv_undefined_int() [L16866] return __VERIFIER_nondet_int(); [L7117] RET, EXPR ldv_undefined_int() [L7117] module_get_succeeded = ldv_undefined_int() [L7119] COND TRUE module_get_succeeded == 1 [L7120] ldv_module_refcounter = ldv_module_refcounter + 1 [L7121] return (1); VAL [\old(ldv_module_refcounter)=1, \result=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, module={706:-705}, module={706:-705}, module_get_succeeded=1, resp_type={697:0}, zsau_resp={698:0}] [L7178] RET, EXPR ldv_try_module_get(module) [L7178] tmp = ldv_try_module_get(module) [L7180] return (tmp); VAL [\old(ldv_module_refcounter)=1, \result=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, module={706:-705}, module={706:-705}, resp_type={697:0}, tmp=1, zsau_resp={698:0}] [L7659] RET, EXPR ldv_try_module_get_1((cs->driver)->owner) VAL [(cs->driver)->owner={706:-705}, \old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:0}, cs->driver={0:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={1152921504606846993:1152921504606846979}, filp={1152921504606846993:1152921504606846979}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_try_module_get_1((cs->driver)->owner)=1, resp_type={697:0}, tmp=1, tty={691:-531}, tty={691:-531}, zsau_resp={698:0}] [L7659] tmp___0 = ldv_try_module_get_1((cs->driver)->owner) [L7661] COND FALSE !(tmp___0 == 0) VAL [\old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={1152921504606846993:1152921504606846979}, filp={1152921504606846993:1152921504606846979}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, tmp=1, tmp___0=1, tty={691:-531}, tty={691:-531}, zsau_resp={698:0}] [L7667] CALL, EXPR mutex_lock_interruptible_nested(& cs->mutex, 0U) VAL [\old(arg1)=0, \old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, arg0={691:598}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, zsau_resp={698:0}] [L16884] return __VERIFIER_nondet_int(); [L7667] RET, EXPR mutex_lock_interruptible_nested(& cs->mutex, 0U) VAL [\old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={1152921504606846993:1152921504606846979}, filp={1152921504606846993:1152921504606846979}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, mutex_lock_interruptible_nested(& cs->mutex, 0U)=0, resp_type={697:0}, tmp=1, tmp___0=1, tty={691:-531}, tty={691:-531}, zsau_resp={698:0}] [L7667] tmp___1 = mutex_lock_interruptible_nested(& cs->mutex, 0U) [L7669] COND FALSE !(tmp___1 != 0) [L7676] tty->driver_data = (void *)cs [L7677] EXPR cs->open_count [L7677] cs->open_count = cs->open_count + 1U [L7678] EXPR cs->open_count VAL [\old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:0}, cs->open_count=710, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={1152921504606846993:1152921504606846979}, filp={1152921504606846993:1152921504606846979}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, tmp=1, tmp___0=1, tmp___1=0, tty={691:-531}, tty={691:-531}, zsau_resp={698:0}] [L7678] COND FALSE !(cs->open_count == 1U) [L7689] FCALL mutex_unlock(& cs->mutex) VAL [\old(ldv_module_refcounter)=1, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={1152921504606846993:1152921504606846979}, filp={1152921504606846993:1152921504606846979}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, tmp=1, tmp___0=1, tmp___1=0, tty={691:-531}, tty={691:-531}, zsau_resp={698:0}] [L7691] return (0); VAL [\old(ldv_module_refcounter)=1, \result=0, __this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={1152921504606846993:1152921504606846979}, filp={1152921504606846993:1152921504606846979}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, tmp=1, tmp___0=1, tmp___1=0, tty={691:-531}, tty={691:-531}, zsau_resp={698:0}] [L8875] RET, EXPR if_open(var_group1, var_group2) VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_open(var_group1, var_group2)=0, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=0, resp_type={697:0}, tmp=0, tmp___0=1, var_group1={691:-531}, var_group2={1152921504606846993:1152921504606846979}, zsau_resp={698:0}] [L8875] res_if_open_2 = if_open(var_group1, var_group2) [L8876] FCALL ldv_check_return_value(res_if_open_2) [L8878] COND FALSE !(res_if_open_2 != 0) [L8882] ldv_s_if_ops_tty_operations = ldv_s_if_ops_tty_operations + 1 VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=0, tmp___0=1, var_group1={691:-531}, var_group2={1152921504606846993:1152921504606846979}, zsau_resp={698:0}] [L8948] tmp___0 = __VERIFIER_nondet_int() [L8950] COND TRUE tmp___0 != 0 VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=0, tmp___0=1, var_group1={691:-531}, var_group2={1152921504606846993:1152921504606846979}, zsau_resp={698:0}] [L8835] tmp = __VERIFIER_nondet_int() [L8837] COND FALSE !(tmp == 0) VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=1, var_group1={691:-531}, var_group2={1152921504606846993:1152921504606846979}, zsau_resp={698:0}] [L8840] COND TRUE tmp == 1 VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=1, var_group1={691:-531}, var_group2={1152921504606846993:1152921504606846979}, zsau_resp={698:0}] [L8887] COND TRUE ldv_s_if_ops_tty_operations == 1 [L8889] CALL if_close(var_group1, var_group2) [L7695] struct cardstate *cs ; [L7696] unsigned long flags ; [L7697] long tmp ; [L7698] raw_spinlock_t *tmp___0 ; [L7699] long tmp___1 ; [L7701] EXPR tty->driver_data [L7701] cs = (struct cardstate *)tty->driver_data [L7702] COND TRUE (unsigned long )cs == (unsigned long )((struct cardstate *)0) [L8889] RET if_close(var_group1, var_group2) [L8890] ldv_s_if_ops_tty_operations = 0 VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=0, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=1, var_group1={691:-531}, var_group2={1152921504606846993:1152921504606846979}, zsau_resp={698:0}] [L8948] tmp___0 = __VERIFIER_nondet_int() [L8950] COND FALSE !(tmp___0 != 0) VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=0, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=0, var_group1={691:-531}, var_group2={1152921504606846993:1152921504606846979}, zsau_resp={698:0}] [L8953] COND FALSE !(ldv_s_if_ops_tty_operations != 0) VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=0, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=0, var_group1={691:-531}, var_group2={1152921504606846993:1152921504606846979}, zsau_resp={698:0}] [L8961] CALL ldv_check_final_state() [L7165] COND TRUE ldv_module_refcounter != 1 VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, zsau_resp={698:0}] [L7167] CALL ldv_blast_assert() VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, zsau_resp={698:0}] [L7097] reach_error() VAL [__this_module={1152921504606846992:1152921504606847002}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, zsau_resp={698:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 662 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 84.4s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 71.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 18791 SdHoareTripleChecker+Valid, 68.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18114 mSDsluCounter, 43592 SdHoareTripleChecker+Invalid, 64.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31783 mSDsCounter, 7453 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26430 IncrementalHoareTripleChecker+Invalid, 33886 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7453 mSolverCounterUnsat, 11809 mSDtfsCounter, 26430 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 408 GetRequests, 267 SyntacticMatches, 4 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3885occurred in iteration=11, InterpolantAutomatonStates: 130, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 5148 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 6.0s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 942 NumberOfCodeBlocks, 942 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 825 ConstructedInterpolants, 0 QuantifiedInterpolants, 2081 SizeOfPredicates, 0 NumberOfNonLiveVariables, 8297 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 58/60 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-18 01:30:46,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_Bitvector.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-tmp.no-commuhash-c3fed41 [2021-12-18 01:30:48,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 01:30:48,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 01:30:48,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 01:30:48,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 01:30:48,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 01:30:48,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 01:30:48,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 01:30:48,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 01:30:48,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 01:30:48,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 01:30:48,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 01:30:48,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 01:30:48,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 01:30:48,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 01:30:48,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 01:30:48,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 01:30:48,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 01:30:48,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 01:30:48,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 01:30:48,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 01:30:48,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 01:30:48,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 01:30:48,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 01:30:48,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 01:30:48,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 01:30:48,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 01:30:48,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 01:30:48,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 01:30:48,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 01:30:48,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 01:30:48,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 01:30:48,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 01:30:48,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 01:30:48,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 01:30:48,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 01:30:48,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 01:30:48,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 01:30:48,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 01:30:48,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 01:30:48,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 01:30:48,354 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-18 01:30:48,378 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 01:30:48,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 01:30:48,379 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 01:30:48,379 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 01:30:48,380 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 01:30:48,380 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 01:30:48,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 01:30:48,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 01:30:48,381 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 01:30:48,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 01:30:48,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 01:30:48,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 01:30:48,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 01:30:48,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 01:30:48,383 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-18 01:30:48,383 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-18 01:30:48,383 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-18 01:30:48,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 01:30:48,383 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 01:30:48,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 01:30:48,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 01:30:48,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 01:30:48,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 01:30:48,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 01:30:48,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 01:30:48,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 01:30:48,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 01:30:48,385 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-18 01:30:48,385 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-18 01:30:48,385 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 01:30:48,385 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 01:30:48,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 01:30:48,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 01:30:48,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-18 01:30:48,386 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 [2021-12-18 01:30:48,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 01:30:48,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 01:30:48,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 01:30:48,665 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 01:30:48,666 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 01:30:48,667 INFO L432 ainManager$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 [2021-12-18 01:30:48,713 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72c283d3c/b79c698b3c4f4f2183c46d712d2807d3/FLAG428d004e4 [2021-12-18 01:30:49,441 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 01:30:49,442 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 [2021-12-18 01:30:49,485 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72c283d3c/b79c698b3c4f4f2183c46d712d2807d3/FLAG428d004e4 [2021-12-18 01:30:49,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72c283d3c/b79c698b3c4f4f2183c46d712d2807d3 [2021-12-18 01:30:49,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 01:30:49,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 01:30:49,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 01:30:49,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 01:30:49,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 01:30:49,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 01:30:49" (1/1) ... [2021-12-18 01:30:49,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32618312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:30:49, skipping insertion in model container [2021-12-18 01:30:49,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 01:30:49" (1/1) ... [2021-12-18 01:30:49,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 01:30:50,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 01:30:51,450 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] [2021-12-18 01:30:51,913 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:30:51,915 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:30:51,916 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:30:51,919 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:30:52,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 01:30:52,864 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-18 01:30:52,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 01:30:53,072 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] [2021-12-18 01:30:53,123 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:30:53,125 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:30:53,125 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:30:53,128 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:30:53,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 01:30:53,380 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 01:30:53,636 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] [2021-12-18 01:30:53,725 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:30:53,727 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:30:53,727 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:30:53,730 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-18 01:30:53,962 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 01:30:54,136 INFO L208 MainTranslator]: Completed translation [2021-12-18 01:30:54,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:30:54 WrapperNode [2021-12-18 01:30:54,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 01:30:54,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 01:30:54,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 01:30:54,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 01:30:54,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:30:54" (1/1) ... [2021-12-18 01:30:54,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:30:54" (1/1) ... [2021-12-18 01:30:54,455 INFO L137 Inliner]: procedures = 367, calls = 6444, calls flagged for inlining = 156, calls inlined = 36, statements flattened = 4438 [2021-12-18 01:30:54,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 01:30:54,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 01:30:54,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 01:30:54,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 01:30:54,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:30:54" (1/1) ... [2021-12-18 01:30:54,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:30:54" (1/1) ... [2021-12-18 01:30:54,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:30:54" (1/1) ... [2021-12-18 01:30:54,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:30:54" (1/1) ... [2021-12-18 01:30:54,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:30:54" (1/1) ... [2021-12-18 01:30:54,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:30:54" (1/1) ... [2021-12-18 01:30:54,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:30:54" (1/1) ... [2021-12-18 01:30:54,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 01:30:54,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 01:30:54,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 01:30:54,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 01:30:54,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:30:54" (1/1) ... [2021-12-18 01:30:54,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 01:30:54,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:30:54,670 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) [2021-12-18 01:30:54,728 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 [2021-12-18 01:30:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2021-12-18 01:30:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2021-12-18 01:30:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-18 01:30:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-18 01:30:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-18 01:30:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 01:30:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 01:30:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2021-12-18 01:30:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2021-12-18 01:30:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-18 01:30:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-18 01:30:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 01:30:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 01:30:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-18 01:30:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-18 01:30:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_3 [2021-12-18 01:30:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_3 [2021-12-18 01:30:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-12-18 01:30:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-12-18 01:30:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 01:30:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 01:30:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2021-12-18 01:30:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2021-12-18 01:30:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2021-12-18 01:30:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2021-12-18 01:30:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 01:30:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 01:30:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 01:30:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 01:30:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 01:30:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 01:30:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-18 01:30:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-18 01:30:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-18 01:30:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 01:30:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-18 01:30:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 01:30:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-18 01:30:54,756 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-18 01:30:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmget [2021-12-18 01:30:54,756 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmget [2021-12-18 01:30:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-18 01:30:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-18 01:30:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~TO~C_INT [2021-12-18 01:30:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~TO~C_INT [2021-12-18 01:30:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-18 01:30:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-18 01:30:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 01:30:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 01:30:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-18 01:30:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-18 01:30:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-18 01:30:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-18 01:30:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure if_chars_in_buffer [2021-12-18 01:30:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure if_chars_in_buffer [2021-12-18 01:30:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure if_write_room [2021-12-18 01:30:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure if_write_room [2021-12-18 01:30:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 01:30:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 01:30:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure if_throttle [2021-12-18 01:30:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure if_throttle [2021-12-18 01:30:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-18 01:30:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-18 01:30:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-18 01:30:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-18 01:30:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2021-12-18 01:30:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2021-12-18 01:30:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 01:30:54,760 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 01:30:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-12-18 01:30:54,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-12-18 01:30:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-18 01:30:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-18 01:30:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-18 01:30:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-18 01:30:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-18 01:30:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-12-18 01:30:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-12-18 01:30:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 01:30:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-18 01:30:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-18 01:30:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 01:30:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 01:30:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 01:30:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-18 01:30:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-18 01:30:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-18 01:30:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-18 01:30:54,762 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-18 01:30:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmset [2021-12-18 01:30:54,762 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmset [2021-12-18 01:30:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-18 01:30:54,763 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-18 01:30:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure if_open [2021-12-18 01:30:54,763 INFO L138 BoogieDeclarations]: Found implementation of procedure if_open [2021-12-18 01:30:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 01:30:54,763 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 01:30:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure setflags [2021-12-18 01:30:54,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setflags [2021-12-18 01:30:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure if_unthrottle [2021-12-18 01:30:54,764 INFO L138 BoogieDeclarations]: Found implementation of procedure if_unthrottle [2021-12-18 01:30:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-18 01:30:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-18 01:30:54,764 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-18 01:30:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 01:30:54,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 01:30:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-18 01:30:54,765 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-18 01:30:55,101 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 01:30:55,103 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 01:30:59,397 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-18 01:30:59,397 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-18 01:31:00,000 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2021-12-18 01:31:00,000 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2021-12-18 01:31:00,000 INFO L768 $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; [2021-12-18 01:31:00,000 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012: SUMMARY for call #t~ret76#1.base, #t~ret76#1.offset := get_current(); srcloc: null [2021-12-18 01:31:00,002 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:31:00,002 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:31:00,003 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:31:00,381 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-12-18 01:31:00,382 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-12-18 01:31:00,382 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume false; [2021-12-18 01:31:00,382 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !false; [2021-12-18 01:31:00,382 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2021-12-18 01:31:00,382 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2021-12-18 01:31:00,874 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:31:00,875 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:31:00,877 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-18 01:33:22,981 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##170: 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; [2021-12-18 01:33:22,982 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !false; [2021-12-18 01:33:22,982 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume false; [2021-12-18 01:33:22,982 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume !false; [2021-12-18 01:33:22,982 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume false; [2021-12-18 01:33:22,982 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##147: assume !false; [2021-12-18 01:33:22,982 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2021-12-18 01:33:22,982 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2021-12-18 01:33:22,982 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##146: assume false; [2021-12-18 01:33:22,982 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##169: assume false; [2021-12-18 01:33:22,982 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume false; [2021-12-18 01:33:22,982 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##112: assume !false; [2021-12-18 01:33:22,982 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##117: assume !false; [2021-12-18 01:33:22,982 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume false; [2021-12-18 01:33:23,010 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 01:33:23,023 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 01:33:23,024 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-18 01:33:23,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 01:33:23 BoogieIcfgContainer [2021-12-18 01:33:23,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 01:33:23,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 01:33:23,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 01:33:23,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 01:33:23,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 01:30:49" (1/3) ... [2021-12-18 01:33:23,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd360a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 01:33:23, skipping insertion in model container [2021-12-18 01:33:23,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:30:54" (2/3) ... [2021-12-18 01:33:23,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd360a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 01:33:23, skipping insertion in model container [2021-12-18 01:33:23,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 01:33:23" (3/3) ... [2021-12-18 01:33:23,033 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-18 01:33:23,037 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 01:33:23,037 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 01:33:23,084 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 01:33:23,088 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 [2021-12-18 01:33:23,089 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 01:33:23,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 643 states, 491 states have (on average 1.4114052953156824) internal successors, (693), 504 states have internal predecessors, (693), 112 states have call successors, (112), 39 states have call predecessors, (112), 39 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2021-12-18 01:33:23,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-18 01:33:23,119 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:33:23,119 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:33:23,119 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:33:23,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:33:23,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1604531392, now seen corresponding path program 1 times [2021-12-18 01:33:23,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 01:33:23,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866462694] [2021-12-18 01:33:23,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:33:23,144 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 01:33:23,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 01:33:23,146 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 01:33:23,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-18 01:33:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:33:29,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 7618 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 01:33:29,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:33:30,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:33:30,219 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:33:30,220 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 01:33:30,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866462694] [2021-12-18 01:33:30,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866462694] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:33:30,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:33:30,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 01:33:30,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216973942] [2021-12-18 01:33:30,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:33:30,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 01:33:30,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 01:33:30,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 01:33:30,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 01:33:30,244 INFO L87 Difference]: Start difference. First operand has 643 states, 491 states have (on average 1.4114052953156824) internal successors, (693), 504 states have internal predecessors, (693), 112 states have call successors, (112), 39 states have call predecessors, (112), 39 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 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) [2021-12-18 01:33:30,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:33:30,387 INFO L93 Difference]: Finished difference Result 1905 states and 2769 transitions. [2021-12-18 01:33:30,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 01:33:30,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 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 [2021-12-18 01:33:30,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:33:30,415 INFO L225 Difference]: With dead ends: 1905 [2021-12-18 01:33:30,415 INFO L226 Difference]: Without dead ends: 1259 [2021-12-18 01:33:30,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 01:33:30,422 INFO L933 BasicCegarLoop]: 1034 mSDtfsCounter, 883 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 01:33:30,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [883 Valid, 1925 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 01:33:30,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2021-12-18 01:33:30,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1256. [2021-12-18 01:33:30,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 959 states have (on average 1.4014598540145986) internal successors, (1344), 982 states have internal predecessors, (1344), 220 states have call successors, (220), 77 states have call predecessors, (220), 76 states have return successors, (223), 216 states have call predecessors, (223), 218 states have call successors, (223) [2021-12-18 01:33:30,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1787 transitions. [2021-12-18 01:33:30,535 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1787 transitions. Word has length 22 [2021-12-18 01:33:30,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:33:30,537 INFO L470 AbstractCegarLoop]: Abstraction has 1256 states and 1787 transitions. [2021-12-18 01:33:30,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 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) [2021-12-18 01:33:30,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1787 transitions. [2021-12-18 01:33:30,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-18 01:33:30,545 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:33:30,545 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] [2021-12-18 01:33:30,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-18 01:33:30,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 01:33:30,746 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:33:30,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:33:30,747 INFO L85 PathProgramCache]: Analyzing trace with hash 263024063, now seen corresponding path program 1 times [2021-12-18 01:33:30,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 01:33:30,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671957908] [2021-12-18 01:33:30,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:33:30,756 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 01:33:30,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 01:33:30,757 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 01:33:30,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-18 01:33:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:33:37,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 7670 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 01:33:37,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:33:37,767 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:33:37,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:33:37,767 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 01:33:37,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671957908] [2021-12-18 01:33:37,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671957908] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:33:37,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:33:37,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 01:33:37,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779983274] [2021-12-18 01:33:37,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:33:37,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 01:33:37,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 01:33:37,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 01:33:37,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 01:33:37,770 INFO L87 Difference]: Start difference. First operand 1256 states and 1787 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-18 01:33:37,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:33:37,911 INFO L93 Difference]: Finished difference Result 2965 states and 4308 transitions. [2021-12-18 01:33:37,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 01:33:37,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2021-12-18 01:33:37,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:33:37,923 INFO L225 Difference]: With dead ends: 2965 [2021-12-18 01:33:37,924 INFO L226 Difference]: Without dead ends: 1715 [2021-12-18 01:33:37,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 01:33:37,929 INFO L933 BasicCegarLoop]: 971 mSDtfsCounter, 261 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 01:33:37,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 1857 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 01:33:37,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2021-12-18 01:33:37,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1715. [2021-12-18 01:33:37,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1312 states have (on average 1.4222560975609757) internal successors, (1866), 1349 states have internal predecessors, (1866), 326 states have call successors, (326), 77 states have call predecessors, (326), 76 states have return successors, (331), 320 states have call predecessors, (331), 324 states have call successors, (331) [2021-12-18 01:33:37,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2523 transitions. [2021-12-18 01:33:37,999 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2523 transitions. Word has length 42 [2021-12-18 01:33:37,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:33:37,999 INFO L470 AbstractCegarLoop]: Abstraction has 1715 states and 2523 transitions. [2021-12-18 01:33:38,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-18 01:33:38,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2523 transitions. [2021-12-18 01:33:38,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-18 01:33:38,005 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:33:38,005 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] [2021-12-18 01:33:38,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-18 01:33:38,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 01:33:38,224 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:33:38,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:33:38,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1647183611, now seen corresponding path program 1 times [2021-12-18 01:33:38,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 01:33:38,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [237469991] [2021-12-18 01:33:38,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:33:38,232 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 01:33:38,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 01:33:38,233 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 01:33:38,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-18 01:33:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:33:45,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 7707 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 01:33:45,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:33:45,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:33:45,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:33:45,378 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 01:33:45,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [237469991] [2021-12-18 01:33:45,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [237469991] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:33:45,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:33:45,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 01:33:45,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063439485] [2021-12-18 01:33:45,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:33:45,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 01:33:45,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 01:33:45,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 01:33:45,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 01:33:45,379 INFO L87 Difference]: Start difference. First operand 1715 states and 2523 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-18 01:33:47,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:33:48,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:33:48,112 INFO L93 Difference]: Finished difference Result 5069 states and 7478 transitions. [2021-12-18 01:33:48,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 01:33:48,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2021-12-18 01:33:48,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:33:48,130 INFO L225 Difference]: With dead ends: 5069 [2021-12-18 01:33:48,131 INFO L226 Difference]: Without dead ends: 3361 [2021-12-18 01:33:48,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 01:33:48,141 INFO L933 BasicCegarLoop]: 1079 mSDtfsCounter, 889 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-18 01:33:48,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [903 Valid, 3039 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 104 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2021-12-18 01:33:48,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3361 states. [2021-12-18 01:33:48,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3361 to 3271. [2021-12-18 01:33:48,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3271 states, 2510 states have (on average 1.4247011952191235) internal successors, (3576), 2575 states have internal predecessors, (3576), 608 states have call successors, (608), 153 states have call predecessors, (608), 152 states have return successors, (620), 598 states have call predecessors, (620), 606 states have call successors, (620) [2021-12-18 01:33:48,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 4804 transitions. [2021-12-18 01:33:48,238 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 4804 transitions. Word has length 47 [2021-12-18 01:33:48,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:33:48,239 INFO L470 AbstractCegarLoop]: Abstraction has 3271 states and 4804 transitions. [2021-12-18 01:33:48,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-18 01:33:48,241 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 4804 transitions. [2021-12-18 01:33:48,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-18 01:33:48,242 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:33:48,243 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] [2021-12-18 01:33:48,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-18 01:33:48,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 01:33:48,467 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:33:48,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:33:48,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1506635001, now seen corresponding path program 1 times [2021-12-18 01:33:48,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 01:33:48,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603459180] [2021-12-18 01:33:48,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:33:48,478 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 01:33:48,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 01:33:48,479 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 01:33:48,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-18 01:33:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:33:55,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 7707 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-18 01:33:55,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:33:55,952 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:33:55,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:33:55,952 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 01:33:55,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603459180] [2021-12-18 01:33:55,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603459180] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:33:55,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:33:55,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 01:33:55,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187401671] [2021-12-18 01:33:55,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:33:55,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 01:33:55,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 01:33:55,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 01:33:55,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 01:33:55,953 INFO L87 Difference]: Start difference. First operand 3271 states and 4804 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-18 01:33:56,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:33:56,215 INFO L93 Difference]: Finished difference Result 6551 states and 9659 transitions. [2021-12-18 01:33:56,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 01:33:56,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2021-12-18 01:33:56,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:33:56,230 INFO L225 Difference]: With dead ends: 6551 [2021-12-18 01:33:56,230 INFO L226 Difference]: Without dead ends: 3287 [2021-12-18 01:33:56,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 01:33:56,241 INFO L933 BasicCegarLoop]: 898 mSDtfsCounter, 5 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 01:33:56,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 2686 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 01:33:56,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2021-12-18 01:33:56,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 3283. [2021-12-18 01:33:56,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 2520 states have (on average 1.423015873015873) internal successors, (3586), 2587 states have internal predecessors, (3586), 608 states have call successors, (608), 153 states have call predecessors, (608), 154 states have return successors, (624), 598 states have call predecessors, (624), 606 states have call successors, (624) [2021-12-18 01:33:56,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 4818 transitions. [2021-12-18 01:33:56,330 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 4818 transitions. Word has length 47 [2021-12-18 01:33:56,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:33:56,331 INFO L470 AbstractCegarLoop]: Abstraction has 3283 states and 4818 transitions. [2021-12-18 01:33:56,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-18 01:33:56,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 4818 transitions. [2021-12-18 01:33:56,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-18 01:33:56,336 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:33:56,337 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2021-12-18 01:33:56,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-18 01:33:56,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 01:33:56,559 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:33:56,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:33:56,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1166731535, now seen corresponding path program 1 times [2021-12-18 01:33:56,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 01:33:56,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328222810] [2021-12-18 01:33:56,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:33:56,567 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 01:33:56,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 01:33:56,568 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 01:33:56,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-18 01:34:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:34:03,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 7722 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 01:34:03,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:34:03,433 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:34:03,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:34:03,434 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 01:34:03,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328222810] [2021-12-18 01:34:03,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328222810] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:34:03,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:34:03,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 01:34:03,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602950007] [2021-12-18 01:34:03,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:34:03,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 01:34:03,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 01:34:03,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 01:34:03,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 01:34:03,435 INFO L87 Difference]: Start difference. First operand 3283 states and 4818 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 01:34:03,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:34:03,560 INFO L93 Difference]: Finished difference Result 6582 states and 9660 transitions. [2021-12-18 01:34:03,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 01:34:03,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2021-12-18 01:34:03,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:34:03,575 INFO L225 Difference]: With dead ends: 6582 [2021-12-18 01:34:03,575 INFO L226 Difference]: Without dead ends: 3300 [2021-12-18 01:34:03,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 01:34:03,586 INFO L933 BasicCegarLoop]: 898 mSDtfsCounter, 3 mSDsluCounter, 2687 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3585 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 01:34:03,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 3585 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 01:34:03,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3300 states. [2021-12-18 01:34:03,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3300 to 3294. [2021-12-18 01:34:03,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3294 states, 2527 states have (on average 1.4218440838939455) internal successors, (3593), 2597 states have internal predecessors, (3593), 608 states have call successors, (608), 153 states have call predecessors, (608), 158 states have return successors, (634), 599 states have call predecessors, (634), 606 states have call successors, (634) [2021-12-18 01:34:03,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3294 states to 3294 states and 4835 transitions. [2021-12-18 01:34:03,684 INFO L78 Accepts]: Start accepts. Automaton has 3294 states and 4835 transitions. Word has length 59 [2021-12-18 01:34:03,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:34:03,684 INFO L470 AbstractCegarLoop]: Abstraction has 3294 states and 4835 transitions. [2021-12-18 01:34:03,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 01:34:03,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3294 states and 4835 transitions. [2021-12-18 01:34:03,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-18 01:34:03,687 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:34:03,688 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:34:03,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-18 01:34:03,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 01:34:03,899 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:34:03,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:34:03,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1526216861, now seen corresponding path program 1 times [2021-12-18 01:34:03,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 01:34:03,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662679109] [2021-12-18 01:34:03,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:34:03,910 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 01:34:03,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 01:34:03,911 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 01:34:03,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-18 01:34:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:34:11,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 7769 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-18 01:34:11,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:34:12,001 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:34:12,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:34:12,002 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 01:34:12,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662679109] [2021-12-18 01:34:12,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662679109] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:34:12,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:34:12,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 01:34:12,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795655134] [2021-12-18 01:34:12,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:34:12,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 01:34:12,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 01:34:12,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 01:34:12,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 01:34:12,004 INFO L87 Difference]: Start difference. First operand 3294 states and 4835 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-18 01:34:12,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:34:12,570 INFO L93 Difference]: Finished difference Result 6653 states and 9817 transitions. [2021-12-18 01:34:12,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 01:34:12,576 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 66 [2021-12-18 01:34:12,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:34:12,592 INFO L225 Difference]: With dead ends: 6653 [2021-12-18 01:34:12,592 INFO L226 Difference]: Without dead ends: 3366 [2021-12-18 01:34:12,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-18 01:34:12,603 INFO L933 BasicCegarLoop]: 903 mSDtfsCounter, 24 mSDsluCounter, 3590 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 01:34:12,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 4493 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 01:34:12,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2021-12-18 01:34:12,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 3346. [2021-12-18 01:34:12,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3346 states, 2567 states have (on average 1.4215037008180755) internal successors, (3649), 2637 states have internal predecessors, (3649), 620 states have call successors, (620), 153 states have call predecessors, (620), 158 states have return successors, (646), 611 states have call predecessors, (646), 618 states have call successors, (646) [2021-12-18 01:34:12,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3346 states to 3346 states and 4915 transitions. [2021-12-18 01:34:12,703 INFO L78 Accepts]: Start accepts. Automaton has 3346 states and 4915 transitions. Word has length 66 [2021-12-18 01:34:12,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:34:12,704 INFO L470 AbstractCegarLoop]: Abstraction has 3346 states and 4915 transitions. [2021-12-18 01:34:12,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-18 01:34:12,704 INFO L276 IsEmpty]: Start isEmpty. Operand 3346 states and 4915 transitions. [2021-12-18 01:34:12,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-18 01:34:12,706 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:34:12,706 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:34:12,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-18 01:34:12,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 01:34:12,923 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:34:12,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:34:12,923 INFO L85 PathProgramCache]: Analyzing trace with hash 2074200846, now seen corresponding path program 1 times [2021-12-18 01:34:12,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 01:34:12,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580224945] [2021-12-18 01:34:12,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:34:12,930 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 01:34:12,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 01:34:12,932 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 01:34:12,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-18 01:34:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:34:19,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 7808 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-18 01:34:19,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:34:20,077 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:34:20,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:34:20,078 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 01:34:20,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580224945] [2021-12-18 01:34:20,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580224945] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:34:20,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:34:20,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 01:34:20,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886749324] [2021-12-18 01:34:20,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:34:20,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 01:34:20,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 01:34:20,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 01:34:20,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 01:34:20,079 INFO L87 Difference]: Start difference. First operand 3346 states and 4915 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 01:34:20,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:34:20,247 INFO L93 Difference]: Finished difference Result 6188 states and 9042 transitions. [2021-12-18 01:34:20,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 01:34:20,248 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 82 [2021-12-18 01:34:20,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:34:20,260 INFO L225 Difference]: With dead ends: 6188 [2021-12-18 01:34:20,261 INFO L226 Difference]: Without dead ends: 2849 [2021-12-18 01:34:20,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 01:34:20,271 INFO L933 BasicCegarLoop]: 899 mSDtfsCounter, 4 mSDsluCounter, 3589 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4488 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 01:34:20,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4488 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 01:34:20,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2021-12-18 01:34:20,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 2841. [2021-12-18 01:34:20,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2188 states have (on average 1.410420475319927) internal successors, (3086), 2244 states have internal predecessors, (3086), 498 states have call successors, (498), 149 states have call predecessors, (498), 154 states have return successors, (518), 491 states have call predecessors, (518), 496 states have call successors, (518) [2021-12-18 01:34:20,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 4102 transitions. [2021-12-18 01:34:20,352 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 4102 transitions. Word has length 82 [2021-12-18 01:34:20,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:34:20,352 INFO L470 AbstractCegarLoop]: Abstraction has 2841 states and 4102 transitions. [2021-12-18 01:34:20,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 01:34:20,353 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 4102 transitions. [2021-12-18 01:34:20,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-18 01:34:20,355 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:34:20,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:34:20,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-12-18 01:34:20,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 01:34:20,563 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:34:20,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:34:20,564 INFO L85 PathProgramCache]: Analyzing trace with hash -575124009, now seen corresponding path program 1 times [2021-12-18 01:34:20,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 01:34:20,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137052228] [2021-12-18 01:34:20,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:34:20,571 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 01:34:20,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 01:34:20,572 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 01:34:20,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-18 01:34:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:34:27,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 7792 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-18 01:34:27,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:34:27,756 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:34:27,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:34:27,756 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 01:34:27,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137052228] [2021-12-18 01:34:27,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137052228] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:34:27,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:34:27,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 01:34:27,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504697430] [2021-12-18 01:34:27,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:34:27,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 01:34:27,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 01:34:27,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 01:34:27,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 01:34:27,757 INFO L87 Difference]: Start difference. First operand 2841 states and 4102 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-18 01:34:27,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:34:27,913 INFO L93 Difference]: Finished difference Result 4529 states and 6586 transitions. [2021-12-18 01:34:27,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 01:34:27,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 1 states have call successors, (9) Word has length 81 [2021-12-18 01:34:27,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:34:27,925 INFO L225 Difference]: With dead ends: 4529 [2021-12-18 01:34:27,925 INFO L226 Difference]: Without dead ends: 2841 [2021-12-18 01:34:27,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 01:34:27,931 INFO L933 BasicCegarLoop]: 903 mSDtfsCounter, 14 mSDsluCounter, 3582 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 4485 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 01:34:27,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 4485 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 01:34:27,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2021-12-18 01:34:27,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 2837. [2021-12-18 01:34:27,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2837 states, 2186 states have (on average 1.4098810612991766) internal successors, (3082), 2240 states have internal predecessors, (3082), 498 states have call successors, (498), 149 states have call predecessors, (498), 152 states have return successors, (510), 491 states have call predecessors, (510), 496 states have call successors, (510) [2021-12-18 01:34:28,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2837 states to 2837 states and 4090 transitions. [2021-12-18 01:34:28,004 INFO L78 Accepts]: Start accepts. Automaton has 2837 states and 4090 transitions. Word has length 81 [2021-12-18 01:34:28,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:34:28,004 INFO L470 AbstractCegarLoop]: Abstraction has 2837 states and 4090 transitions. [2021-12-18 01:34:28,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-18 01:34:28,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2837 states and 4090 transitions. [2021-12-18 01:34:28,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-18 01:34:28,010 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:34:28,010 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:34:28,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-12-18 01:34:28,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 01:34:28,235 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:34:28,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:34:28,236 INFO L85 PathProgramCache]: Analyzing trace with hash -631103340, now seen corresponding path program 1 times [2021-12-18 01:34:28,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 01:34:28,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641759783] [2021-12-18 01:34:28,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:34:28,246 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 01:34:28,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 01:34:28,248 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 01:34:28,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-18 01:34:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:34:35,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 7811 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-18 01:34:35,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:34:36,125 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:34:36,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:34:36,125 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 01:34:36,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641759783] [2021-12-18 01:34:36,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641759783] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:34:36,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:34:36,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 01:34:36,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016456238] [2021-12-18 01:34:36,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:34:36,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 01:34:36,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 01:34:36,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 01:34:36,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 01:34:36,127 INFO L87 Difference]: Start difference. First operand 2837 states and 4090 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 01:34:38,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:34:40,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:34:42,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:34:47,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:34:49,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:34:52,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:34:54,178 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:35:00,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:35:02,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:35:06,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:35:08,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:35:14,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:35:17,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:35:19,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:35:19,376 INFO L93 Difference]: Finished difference Result 7895 states and 11522 transitions. [2021-12-18 01:35:19,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 01:35:19,377 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2021-12-18 01:35:19,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:35:19,406 INFO L225 Difference]: With dead ends: 7895 [2021-12-18 01:35:19,407 INFO L226 Difference]: Without dead ends: 6205 [2021-12-18 01:35:19,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-18 01:35:19,416 INFO L933 BasicCegarLoop]: 1619 mSDtfsCounter, 2547 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 2658 mSolverCounterSat, 608 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2703 SdHoareTripleChecker+Valid, 3952 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 2658 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.7s IncrementalHoareTripleChecker+Time [2021-12-18 01:35:19,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2703 Valid, 3952 Invalid, 3279 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [608 Valid, 2658 Invalid, 13 Unknown, 0 Unchecked, 42.7s Time] [2021-12-18 01:35:19,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6205 states. [2021-12-18 01:35:19,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6205 to 6170. [2021-12-18 01:35:19,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 4749 states have (on average 1.414403032217309) internal successors, (6717), 4871 states have internal predecessors, (6717), 1102 states have call successors, (1102), 301 states have call predecessors, (1102), 318 states have return successors, (1166), 1097 states have call predecessors, (1166), 1100 states have call successors, (1166) [2021-12-18 01:35:19,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 8985 transitions. [2021-12-18 01:35:19,593 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 8985 transitions. Word has length 84 [2021-12-18 01:35:19,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:35:19,594 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 8985 transitions. [2021-12-18 01:35:19,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 01:35:19,594 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 8985 transitions. [2021-12-18 01:35:19,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-18 01:35:19,597 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:35:19,597 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:35:19,793 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-18 01:35:19,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 01:35:19,819 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:35:19,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:35:19,820 INFO L85 PathProgramCache]: Analyzing trace with hash -2100447070, now seen corresponding path program 1 times [2021-12-18 01:35:19,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 01:35:19,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709619595] [2021-12-18 01:35:19,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:35:19,827 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 01:35:19,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 01:35:19,828 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 01:35:19,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-18 01:35:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:35:27,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 7822 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-18 01:35:27,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:35:28,721 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-18 01:35:28,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 54 [2021-12-18 01:35:28,810 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-18 01:35:28,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 41 [2021-12-18 01:35:29,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:35:29,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:35:29,442 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 01:35:29,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709619595] [2021-12-18 01:35:29,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [709619595] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:35:29,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:35:29,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 01:35:29,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470701132] [2021-12-18 01:35:29,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:35:29,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 01:35:29,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 01:35:29,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 01:35:29,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-18 01:35:29,444 INFO L87 Difference]: Start difference. First operand 6170 states and 8985 transitions. Second operand has 10 states, 8 states have (on average 8.375) internal successors, (67), 10 states have internal predecessors, (67), 5 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-18 01:35:32,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:35:34,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:35:37,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:35:39,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 01:35:42,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:35:42,654 INFO L93 Difference]: Finished difference Result 11261 states and 16458 transitions. [2021-12-18 01:35:42,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 01:35:42,656 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.375) internal successors, (67), 10 states have internal predecessors, (67), 5 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 93 [2021-12-18 01:35:42,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:35:42,685 INFO L225 Difference]: With dead ends: 11261 [2021-12-18 01:35:42,685 INFO L226 Difference]: Without dead ends: 6244 [2021-12-18 01:35:42,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-12-18 01:35:42,699 INFO L933 BasicCegarLoop]: 902 mSDtfsCounter, 26 mSDsluCounter, 6118 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 7020 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 88 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2021-12-18 01:35:42,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 7020 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 4 Unknown, 88 Unchecked, 12.6s Time] [2021-12-18 01:35:42,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6244 states. [2021-12-18 01:35:42,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6244 to 6184. [2021-12-18 01:35:42,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6184 states, 4757 states have (on average 1.4137061173008199) internal successors, (6725), 4883 states have internal predecessors, (6725), 1102 states have call successors, (1102), 305 states have call predecessors, (1102), 324 states have return successors, (1166), 1095 states have call predecessors, (1166), 1100 states have call successors, (1166) [2021-12-18 01:35:42,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6184 states to 6184 states and 8993 transitions. [2021-12-18 01:35:42,836 INFO L78 Accepts]: Start accepts. Automaton has 6184 states and 8993 transitions. Word has length 93 [2021-12-18 01:35:42,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:35:42,836 INFO L470 AbstractCegarLoop]: Abstraction has 6184 states and 8993 transitions. [2021-12-18 01:35:42,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.375) internal successors, (67), 10 states have internal predecessors, (67), 5 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-18 01:35:42,836 INFO L276 IsEmpty]: Start isEmpty. Operand 6184 states and 8993 transitions. [2021-12-18 01:35:42,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-18 01:35:42,838 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:35:42,839 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:35:43,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-12-18 01:35:43,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 01:35:43,067 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:35:43,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:35:43,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1363964116, now seen corresponding path program 1 times [2021-12-18 01:35:43,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 01:35:43,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230402326] [2021-12-18 01:35:43,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:35:43,074 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 01:35:43,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 01:35:43,075 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 01:35:43,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-18 01:35:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:35:49,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 7844 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 01:35:49,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:35:50,160 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:35:50,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:35:50,160 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 01:35:50,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [230402326] [2021-12-18 01:35:50,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [230402326] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:35:50,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:35:50,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 01:35:50,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105035419] [2021-12-18 01:35:50,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:35:50,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 01:35:50,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 01:35:50,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 01:35:50,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 01:35:50,161 INFO L87 Difference]: Start difference. First operand 6184 states and 8993 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-18 01:35:50,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:35:50,418 INFO L93 Difference]: Finished difference Result 7484 states and 11094 transitions. [2021-12-18 01:35:50,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 01:35:50,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 93 [2021-12-18 01:35:50,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:35:50,449 INFO L225 Difference]: With dead ends: 7484 [2021-12-18 01:35:50,450 INFO L226 Difference]: Without dead ends: 7479 [2021-12-18 01:35:50,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 01:35:50,457 INFO L933 BasicCegarLoop]: 1270 mSDtfsCounter, 286 mSDsluCounter, 3457 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 4727 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 01:35:50,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 4727 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 01:35:50,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7479 states. [2021-12-18 01:35:50,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7479 to 6194. [2021-12-18 01:35:50,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6194 states, 4765 states have (on average 1.412591815320042) internal successors, (6731), 4891 states have internal predecessors, (6731), 1102 states have call successors, (1102), 305 states have call predecessors, (1102), 326 states have return successors, (1174), 1097 states have call predecessors, (1174), 1100 states have call successors, (1174) [2021-12-18 01:35:50,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6194 states to 6194 states and 9007 transitions. [2021-12-18 01:35:50,643 INFO L78 Accepts]: Start accepts. Automaton has 6194 states and 9007 transitions. Word has length 93 [2021-12-18 01:35:50,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:35:50,644 INFO L470 AbstractCegarLoop]: Abstraction has 6194 states and 9007 transitions. [2021-12-18 01:35:50,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-18 01:35:50,644 INFO L276 IsEmpty]: Start isEmpty. Operand 6194 states and 9007 transitions. [2021-12-18 01:35:50,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-18 01:35:50,647 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:35:50,647 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:35:50,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-12-18 01:35:50,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 01:35:50,875 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:35:50,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:35:50,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1791418784, now seen corresponding path program 1 times [2021-12-18 01:35:50,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 01:35:50,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303784618] [2021-12-18 01:35:50,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:35:50,883 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 01:35:50,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 01:35:50,884 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 01:35:50,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-18 01:35:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:35:57,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 7848 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 01:35:57,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:35:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 01:35:57,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 01:35:57,898 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 01:35:57,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303784618] [2021-12-18 01:35:57,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303784618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:35:57,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:35:57,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 01:35:57,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504378387] [2021-12-18 01:35:57,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:35:57,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 01:35:57,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 01:35:57,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 01:35:57,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 01:35:57,899 INFO L87 Difference]: Start difference. First operand 6194 states and 9007 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 01:35:59,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:35:59,076 INFO L93 Difference]: Finished difference Result 11235 states and 16376 transitions. [2021-12-18 01:35:59,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 01:35:59,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2021-12-18 01:35:59,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:35:59,117 INFO L225 Difference]: With dead ends: 11235 [2021-12-18 01:35:59,118 INFO L226 Difference]: Without dead ends: 6194 [2021-12-18 01:35:59,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 01:35:59,136 INFO L933 BasicCegarLoop]: 1258 mSDtfsCounter, 542 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-18 01:35:59,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [654 Valid, 3001 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-18 01:35:59,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6194 states. [2021-12-18 01:35:59,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6194 to 6194. [2021-12-18 01:35:59,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6194 states, 4765 states have (on average 1.4092339979013642) internal successors, (6715), 4891 states have internal predecessors, (6715), 1102 states have call successors, (1102), 305 states have call predecessors, (1102), 326 states have return successors, (1174), 1097 states have call predecessors, (1174), 1100 states have call successors, (1174) [2021-12-18 01:35:59,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6194 states to 6194 states and 8991 transitions. [2021-12-18 01:35:59,319 INFO L78 Accepts]: Start accepts. Automaton has 6194 states and 8991 transitions. Word has length 96 [2021-12-18 01:35:59,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:35:59,320 INFO L470 AbstractCegarLoop]: Abstraction has 6194 states and 8991 transitions. [2021-12-18 01:35:59,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 01:35:59,320 INFO L276 IsEmpty]: Start isEmpty. Operand 6194 states and 8991 transitions. [2021-12-18 01:35:59,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-18 01:35:59,323 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:35:59,323 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:35:59,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-12-18 01:35:59,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 01:35:59,550 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:35:59,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:35:59,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1096108951, now seen corresponding path program 1 times [2021-12-18 01:35:59,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 01:35:59,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093098306] [2021-12-18 01:35:59,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:35:59,559 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 01:35:59,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 01:35:59,560 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 01:35:59,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process Killed by 15