./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.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 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 13:04:45,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 13:04:45,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 13:04:45,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 13:04:45,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 13:04:45,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 13:04:45,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 13:04:45,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 13:04:45,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 13:04:45,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 13:04:45,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 13:04:45,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 13:04:45,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 13:04:45,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 13:04:45,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 13:04:45,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 13:04:45,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 13:04:45,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 13:04:45,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 13:04:45,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 13:04:45,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 13:04:45,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 13:04:45,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 13:04:45,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 13:04:45,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 13:04:45,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 13:04:45,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 13:04:45,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 13:04:45,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 13:04:45,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 13:04:45,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 13:04:45,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 13:04:45,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 13:04:45,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 13:04:45,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 13:04:45,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 13:04:45,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 13:04:45,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 13:04:45,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 13:04:45,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 13:04:45,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 13:04:45,147 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 13:04:45,168 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 13:04:45,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 13:04:45,169 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 13:04:45,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 13:04:45,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 13:04:45,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 13:04:45,170 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 13:04:45,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 13:04:45,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 13:04:45,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 13:04:45,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 13:04:45,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 13:04:45,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 13:04:45,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 13:04:45,172 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 13:04:45,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 13:04:45,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 13:04:45,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 13:04:45,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 13:04:45,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 13:04:45,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 13:04:45,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 13:04:45,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 13:04:45,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 13:04:45,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 13:04:45,174 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 13:04:45,174 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 13:04:45,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 13:04:45,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 13:04:45,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 527ba95af45b5d863cb3ca1867267fd54ac6958329e64d7162c5caa88bde96c3 [2021-11-04 13:04:45,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 13:04:45,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 13:04:45,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 13:04:45,403 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 13:04:45,404 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 13:04:45,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-04 13:04:45,465 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ec35507f/b8b6e43ba97d4c74b9a46ad87549127c/FLAG89a324ab8 [2021-11-04 13:04:46,223 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 13:04:46,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-04 13:04:46,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ec35507f/b8b6e43ba97d4c74b9a46ad87549127c/FLAG89a324ab8 [2021-11-04 13:04:46,493 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ec35507f/b8b6e43ba97d4c74b9a46ad87549127c [2021-11-04 13:04:46,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 13:04:46,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 13:04:46,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 13:04:46,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 13:04:46,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 13:04:46,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 01:04:46" (1/1) ... [2021-11-04 13:04:46,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33e19b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:04:46, skipping insertion in model container [2021-11-04 13:04:46,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 01:04:46" (1/1) ... [2021-11-04 13:04:46,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 13:04:46,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 13:04:49,073 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470813,470826] [2021-11-04 13:04:49,076 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470982,470995] [2021-11-04 13:04:49,076 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471149,471162] [2021-11-04 13:04:49,080 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471317,471330] [2021-11-04 13:04:49,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 13:04:49,136 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 13:04:49,476 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470813,470826] [2021-11-04 13:04:49,477 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[470982,470995] [2021-11-04 13:04:49,477 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471149,471162] [2021-11-04 13:04:49,477 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[471317,471330] [2021-11-04 13:04:49,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 13:04:49,622 INFO L208 MainTranslator]: Completed translation [2021-11-04 13:04:49,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:04:49 WrapperNode [2021-11-04 13:04:49,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 13:04:49,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 13:04:49,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 13:04:49,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 13:04:49,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:04:49" (1/1) ... [2021-11-04 13:04:49,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:04:49" (1/1) ... [2021-11-04 13:04:51,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 13:04:51,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 13:04:51,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 13:04:51,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 13:04:51,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:04:49" (1/1) ... [2021-11-04 13:04:51,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:04:49" (1/1) ... [2021-11-04 13:04:52,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:04:49" (1/1) ... [2021-11-04 13:04:52,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:04:49" (1/1) ... [2021-11-04 13:04:54,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:04:49" (1/1) ... [2021-11-04 13:04:54,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:04:49" (1/1) ... [2021-11-04 13:04:54,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:04:49" (1/1) ... [2021-11-04 13:04:55,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 13:04:55,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 13:04:55,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 13:04:55,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 13:04:55,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:04:49" (1/1) ... [2021-11-04 13:04:55,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 13:04:55,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 13:04:55,561 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) [2021-11-04 13:04:55,583 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 [2021-11-04 13:04:55,625 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2021-11-04 13:04:55,639 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2021-11-04 13:04:55,639 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2021-11-04 13:04:55,640 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2021-11-04 13:04:55,640 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2021-11-04 13:04:55,640 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2021-11-04 13:04:55,640 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2021-11-04 13:04:55,640 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2021-11-04 13:04:55,640 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-04 13:04:55,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 13:04:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 13:04:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 13:04:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 13:04:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2021-11-04 13:04:55,641 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2021-11-04 13:04:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 13:04:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 13:04:55,642 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-04 13:04:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-04 13:04:55,642 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2021-11-04 13:04:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2021-11-04 13:04:55,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 13:04:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 13:04:55,642 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2021-11-04 13:04:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2021-11-04 13:04:55,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 13:04:55,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 13:04:55,643 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2021-11-04 13:04:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2021-11-04 13:04:55,643 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2021-11-04 13:04:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2021-11-04 13:04:55,643 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2021-11-04 13:04:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2021-11-04 13:04:55,644 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2021-11-04 13:04:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2021-11-04 13:04:55,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 13:04:55,644 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2021-11-04 13:04:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2021-11-04 13:04:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2021-11-04 13:04:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2021-11-04 13:04:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 13:04:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2021-11-04 13:04:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2021-11-04 13:04:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-04 13:04:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-04 13:04:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 13:04:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2021-11-04 13:04:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2021-11-04 13:04:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2021-11-04 13:04:55,647 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2021-11-04 13:04:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2021-11-04 13:04:55,647 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2021-11-04 13:04:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 13:04:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2021-11-04 13:04:55,648 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2021-11-04 13:04:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2021-11-04 13:04:55,649 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2021-11-04 13:04:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2021-11-04 13:04:55,650 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2021-11-04 13:04:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 13:04:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-04 13:05:17,693 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L15087: #t~ret2822 := main_#res; [2021-11-04 13:05:17,695 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_5_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_5_~#ldv_5_resource_pm_message~0.base, ldv_pci_pci_instance_5_~#ldv_5_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_5_~#ldv_5_resource_pm_message~0.base, ldv_pci_pci_instance_5_~#ldv_5_resource_pm_message~0.offset; [2021-11-04 13:05:17,695 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 13:05:17,696 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_17_returnLabel: main_#res := 0; [2021-11-04 13:05:17,797 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 13:05:17,797 INFO L299 CfgBuilder]: Removed 22116 assume(true) statements. [2021-11-04 13:05:17,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 01:05:17 BoogieIcfgContainer [2021-11-04 13:05:17,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 13:05:17,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 13:05:17,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 13:05:17,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 13:05:17,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 01:04:46" (1/3) ... [2021-11-04 13:05:17,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24fffb53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 01:05:17, skipping insertion in model container [2021-11-04 13:05:17,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:04:49" (2/3) ... [2021-11-04 13:05:17,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24fffb53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 01:05:17, skipping insertion in model container [2021-11-04 13:05:17,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 01:05:17" (3/3) ... [2021-11-04 13:05:17,819 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-04 13:05:17,826 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 13:05:17,826 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 98 error locations. [2021-11-04 13:05:17,895 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 13:05:17,901 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 [2021-11-04 13:05:17,901 INFO L340 AbstractCegarLoop]: Starting to check reachability of 98 error locations. [2021-11-04 13:05:18,058 INFO L276 IsEmpty]: Start isEmpty. Operand has 17871 states, 17664 states have (on average 1.296875) internal successors, (22908), 17762 states have internal predecessors, (22908), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-04 13:05:18,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-04 13:05:18,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 13:05:18,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 13:05:18,064 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-04 13:05:18,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 13:05:18,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1867274467, now seen corresponding path program 1 times [2021-11-04 13:05:18,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 13:05:18,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715002068] [2021-11-04 13:05:18,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 13:05:18,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 13:05:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 13:05:18,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 13:05:18,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 13:05:18,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715002068] [2021-11-04 13:05:18,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715002068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 13:05:18,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 13:05:18,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 13:05:18,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756574518] [2021-11-04 13:05:18,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 13:05:18,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 13:05:18,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 13:05:18,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 13:05:18,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 13:05:18,651 INFO L87 Difference]: Start difference. First operand has 17871 states, 17664 states have (on average 1.296875) internal successors, (22908), 17762 states have internal predecessors, (22908), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:05:20,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:06:13,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 13:06:13,690 INFO L93 Difference]: Finished difference Result 35247 states and 45595 transitions. [2021-11-04 13:06:13,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 13:06:13,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-04 13:06:13,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 13:06:13,785 INFO L225 Difference]: With dead ends: 35247 [2021-11-04 13:06:13,786 INFO L226 Difference]: Without dead ends: 17268 [2021-11-04 13:06:13,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.99ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 13:06:13,947 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 22159 mSDsluCounter, 22095 mSDsCounter, 0 mSdLazyCounter, 43678 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47028.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22159 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 43705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 132.10ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43678 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53137.68ms IncrementalHoareTripleChecker+Time [2021-11-04 13:06:13,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22159 Valid, 638 Invalid, 43705 Unknown, 0 Unchecked, 132.10ms Time], IncrementalHoareTripleChecker [26 Valid, 43678 Invalid, 1 Unknown, 0 Unchecked, 53137.68ms Time] [2021-11-04 13:06:13,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17268 states. [2021-11-04 13:06:14,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17268 to 17268. [2021-11-04 13:06:14,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17268 states, 17063 states have (on average 1.2722264549024205) internal successors, (21708), 17159 states have internal predecessors, (21708), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-04 13:06:14,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17268 states to 17268 states and 21882 transitions. [2021-11-04 13:06:14,529 INFO L78 Accepts]: Start accepts. Automaton has 17268 states and 21882 transitions. Word has length 22 [2021-11-04 13:06:14,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 13:06:14,535 INFO L470 AbstractCegarLoop]: Abstraction has 17268 states and 21882 transitions. [2021-11-04 13:06:14,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:06:14,536 INFO L276 IsEmpty]: Start isEmpty. Operand 17268 states and 21882 transitions. [2021-11-04 13:06:14,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-04 13:06:14,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 13:06:14,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 13:06:14,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 13:06:14,538 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-04 13:06:14,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 13:06:14,539 INFO L85 PathProgramCache]: Analyzing trace with hash -843711802, now seen corresponding path program 1 times [2021-11-04 13:06:14,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 13:06:14,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197434019] [2021-11-04 13:06:14,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 13:06:14,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 13:06:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 13:06:14,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 13:06:14,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 13:06:14,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197434019] [2021-11-04 13:06:14,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197434019] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 13:06:14,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 13:06:14,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 13:06:14,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864626650] [2021-11-04 13:06:14,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 13:06:14,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 13:06:14,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 13:06:14,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 13:06:14,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 13:06:14,812 INFO L87 Difference]: Start difference. First operand 17268 states and 21882 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:06:16,894 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:07:17,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 13:07:17,458 INFO L93 Difference]: Finished difference Result 17268 states and 21882 transitions. [2021-11-04 13:07:17,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 13:07:17,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-04 13:07:17,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 13:07:17,505 INFO L225 Difference]: With dead ends: 17268 [2021-11-04 13:07:17,506 INFO L226 Difference]: Without dead ends: 17264 [2021-11-04 13:07:17,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.92ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 13:07:17,515 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 21857 mSDsluCounter, 21805 mSDsCounter, 0 mSdLazyCounter, 43380 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53071.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21857 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 43407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 142.11ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60922.27ms IncrementalHoareTripleChecker+Time [2021-11-04 13:07:17,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21857 Valid, 348 Invalid, 43407 Unknown, 0 Unchecked, 142.11ms Time], IncrementalHoareTripleChecker [26 Valid, 43380 Invalid, 1 Unknown, 0 Unchecked, 60922.27ms Time] [2021-11-04 13:07:17,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17264 states. [2021-11-04 13:07:17,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17264 to 17264. [2021-11-04 13:07:17,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17264 states, 17061 states have (on average 1.2721411406130942) internal successors, (21704), 17155 states have internal predecessors, (21704), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-04 13:07:17,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17264 states to 17264 states and 21878 transitions. [2021-11-04 13:07:17,908 INFO L78 Accepts]: Start accepts. Automaton has 17264 states and 21878 transitions. Word has length 24 [2021-11-04 13:07:17,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 13:07:17,909 INFO L470 AbstractCegarLoop]: Abstraction has 17264 states and 21878 transitions. [2021-11-04 13:07:17,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:07:17,909 INFO L276 IsEmpty]: Start isEmpty. Operand 17264 states and 21878 transitions. [2021-11-04 13:07:17,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-04 13:07:17,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 13:07:17,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 13:07:17,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 13:07:17,911 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-04 13:07:17,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 13:07:17,911 INFO L85 PathProgramCache]: Analyzing trace with hash 943632681, now seen corresponding path program 1 times [2021-11-04 13:07:17,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 13:07:17,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208157423] [2021-11-04 13:07:17,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 13:07:17,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 13:07:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 13:07:18,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 13:07:18,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 13:07:18,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208157423] [2021-11-04 13:07:18,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208157423] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 13:07:18,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 13:07:18,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 13:07:18,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103179035] [2021-11-04 13:07:18,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 13:07:18,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 13:07:18,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 13:07:18,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 13:07:18,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 13:07:18,102 INFO L87 Difference]: Start difference. First operand 17264 states and 21878 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:07:20,139 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:08:41,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 13:08:41,927 INFO L93 Difference]: Finished difference Result 17264 states and 21878 transitions. [2021-11-04 13:08:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 13:08:41,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-04 13:08:41,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 13:08:41,975 INFO L225 Difference]: With dead ends: 17264 [2021-11-04 13:08:41,975 INFO L226 Difference]: Without dead ends: 17260 [2021-11-04 13:08:41,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.06ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 13:08:41,988 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 21851 mSDsluCounter, 21803 mSDsCounter, 0 mSdLazyCounter, 43372 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69689.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21851 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 43399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 173.17ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43372 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81803.23ms IncrementalHoareTripleChecker+Time [2021-11-04 13:08:41,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21851 Valid, 348 Invalid, 43399 Unknown, 0 Unchecked, 173.17ms Time], IncrementalHoareTripleChecker [26 Valid, 43372 Invalid, 1 Unknown, 0 Unchecked, 81803.23ms Time] [2021-11-04 13:08:42,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17260 states. [2021-11-04 13:08:42,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17260 to 17260. [2021-11-04 13:08:42,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17260 states, 17059 states have (on average 1.2720558063192449) internal successors, (21700), 17151 states have internal predecessors, (21700), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-04 13:08:42,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17260 states to 17260 states and 21874 transitions. [2021-11-04 13:08:42,691 INFO L78 Accepts]: Start accepts. Automaton has 17260 states and 21874 transitions. Word has length 26 [2021-11-04 13:08:42,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 13:08:42,691 INFO L470 AbstractCegarLoop]: Abstraction has 17260 states and 21874 transitions. [2021-11-04 13:08:42,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:08:42,692 INFO L276 IsEmpty]: Start isEmpty. Operand 17260 states and 21874 transitions. [2021-11-04 13:08:42,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-04 13:08:42,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 13:08:42,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 13:08:42,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 13:08:42,694 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-04 13:08:42,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 13:08:42,694 INFO L85 PathProgramCache]: Analyzing trace with hash 594762764, now seen corresponding path program 1 times [2021-11-04 13:08:42,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 13:08:42,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494837518] [2021-11-04 13:08:42,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 13:08:42,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 13:08:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 13:08:42,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 13:08:42,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 13:08:42,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494837518] [2021-11-04 13:08:42,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494837518] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 13:08:42,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 13:08:42,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 13:08:42,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287130784] [2021-11-04 13:08:42,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 13:08:42,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 13:08:42,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 13:08:42,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 13:08:42,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 13:08:42,939 INFO L87 Difference]: Start difference. First operand 17260 states and 21874 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:08:44,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:10:06,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 13:10:06,726 INFO L93 Difference]: Finished difference Result 17260 states and 21874 transitions. [2021-11-04 13:10:06,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 13:10:06,729 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-04 13:10:06,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 13:10:06,787 INFO L225 Difference]: With dead ends: 17260 [2021-11-04 13:10:06,788 INFO L226 Difference]: Without dead ends: 17256 [2021-11-04 13:10:06,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 13:10:06,800 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 21845 mSDsluCounter, 21801 mSDsCounter, 0 mSdLazyCounter, 43364 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68680.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21845 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 43391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 155.73ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43364 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82053.89ms IncrementalHoareTripleChecker+Time [2021-11-04 13:10:06,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21845 Valid, 348 Invalid, 43391 Unknown, 0 Unchecked, 155.73ms Time], IncrementalHoareTripleChecker [26 Valid, 43364 Invalid, 1 Unknown, 0 Unchecked, 82053.89ms Time] [2021-11-04 13:10:06,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17256 states. [2021-11-04 13:10:07,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17256 to 17256. [2021-11-04 13:10:07,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17256 states, 17057 states have (on average 1.271970452013836) internal successors, (21696), 17147 states have internal predecessors, (21696), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-04 13:10:07,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17256 states to 17256 states and 21870 transitions. [2021-11-04 13:10:07,205 INFO L78 Accepts]: Start accepts. Automaton has 17256 states and 21870 transitions. Word has length 28 [2021-11-04 13:10:07,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 13:10:07,206 INFO L470 AbstractCegarLoop]: Abstraction has 17256 states and 21870 transitions. [2021-11-04 13:10:07,206 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:10:07,206 INFO L276 IsEmpty]: Start isEmpty. Operand 17256 states and 21870 transitions. [2021-11-04 13:10:07,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-04 13:10:07,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 13:10:07,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 13:10:07,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 13:10:07,210 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-04 13:10:07,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 13:10:07,210 INFO L85 PathProgramCache]: Analyzing trace with hash 338221935, now seen corresponding path program 1 times [2021-11-04 13:10:07,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 13:10:07,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425615182] [2021-11-04 13:10:07,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 13:10:07,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 13:10:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 13:10:07,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 13:10:07,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 13:10:07,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425615182] [2021-11-04 13:10:07,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425615182] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 13:10:07,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 13:10:07,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 13:10:07,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379910879] [2021-11-04 13:10:07,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 13:10:07,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 13:10:07,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 13:10:07,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 13:10:07,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 13:10:07,374 INFO L87 Difference]: Start difference. First operand 17256 states and 21870 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:10:09,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:11:48,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 13:11:48,687 INFO L93 Difference]: Finished difference Result 17256 states and 21870 transitions. [2021-11-04 13:11:48,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 13:11:48,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-04 13:11:48,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 13:11:48,720 INFO L225 Difference]: With dead ends: 17256 [2021-11-04 13:11:48,720 INFO L226 Difference]: Without dead ends: 17252 [2021-11-04 13:11:48,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.05ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 13:11:48,733 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 21839 mSDsluCounter, 21799 mSDsCounter, 0 mSdLazyCounter, 43356 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81946.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21839 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 43383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 179.01ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43356 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 99346.19ms IncrementalHoareTripleChecker+Time [2021-11-04 13:11:48,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21839 Valid, 348 Invalid, 43383 Unknown, 0 Unchecked, 179.01ms Time], IncrementalHoareTripleChecker [26 Valid, 43356 Invalid, 1 Unknown, 0 Unchecked, 99346.19ms Time] [2021-11-04 13:11:48,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17252 states. [2021-11-04 13:11:49,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17252 to 17252. [2021-11-04 13:11:49,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17252 states, 17055 states have (on average 1.271885077689827) internal successors, (21692), 17143 states have internal predecessors, (21692), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-04 13:11:49,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17252 states to 17252 states and 21866 transitions. [2021-11-04 13:11:49,272 INFO L78 Accepts]: Start accepts. Automaton has 17252 states and 21866 transitions. Word has length 30 [2021-11-04 13:11:49,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 13:11:49,273 INFO L470 AbstractCegarLoop]: Abstraction has 17252 states and 21866 transitions. [2021-11-04 13:11:49,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:11:49,273 INFO L276 IsEmpty]: Start isEmpty. Operand 17252 states and 21866 transitions. [2021-11-04 13:11:49,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-04 13:11:49,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 13:11:49,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 13:11:49,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 13:11:49,274 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-04 13:11:49,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 13:11:49,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1384378542, now seen corresponding path program 1 times [2021-11-04 13:11:49,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 13:11:49,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574932835] [2021-11-04 13:11:49,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 13:11:49,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 13:11:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 13:11:49,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 13:11:49,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 13:11:49,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574932835] [2021-11-04 13:11:49,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574932835] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 13:11:49,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 13:11:49,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 13:11:49,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18943488] [2021-11-04 13:11:49,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 13:11:49,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 13:11:49,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 13:11:49,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 13:11:49,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 13:11:49,433 INFO L87 Difference]: Start difference. First operand 17252 states and 21866 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:11:51,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:13:47,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 13:13:47,676 INFO L93 Difference]: Finished difference Result 17252 states and 21866 transitions. [2021-11-04 13:13:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 13:13:47,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-04 13:13:47,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 13:13:47,702 INFO L225 Difference]: With dead ends: 17252 [2021-11-04 13:13:47,702 INFO L226 Difference]: Without dead ends: 17248 [2021-11-04 13:13:47,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.73ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 13:13:47,709 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 21833 mSDsluCounter, 21797 mSDsCounter, 0 mSdLazyCounter, 43348 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 92268.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21833 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 43375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 218.03ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 115946.53ms IncrementalHoareTripleChecker+Time [2021-11-04 13:13:47,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21833 Valid, 348 Invalid, 43375 Unknown, 0 Unchecked, 218.03ms Time], IncrementalHoareTripleChecker [26 Valid, 43348 Invalid, 1 Unknown, 0 Unchecked, 115946.53ms Time] [2021-11-04 13:13:47,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17248 states. [2021-11-04 13:13:48,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17248 to 17248. [2021-11-04 13:13:48,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17248 states, 17053 states have (on average 1.2717996833401748) internal successors, (21688), 17139 states have internal predecessors, (21688), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-04 13:13:48,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17248 states to 17248 states and 21862 transitions. [2021-11-04 13:13:48,105 INFO L78 Accepts]: Start accepts. Automaton has 17248 states and 21862 transitions. Word has length 32 [2021-11-04 13:13:48,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 13:13:48,105 INFO L470 AbstractCegarLoop]: Abstraction has 17248 states and 21862 transitions. [2021-11-04 13:13:48,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:13:48,106 INFO L276 IsEmpty]: Start isEmpty. Operand 17248 states and 21862 transitions. [2021-11-04 13:13:48,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-04 13:13:48,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 13:13:48,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 13:13:48,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 13:13:48,107 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-04 13:13:48,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 13:13:48,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1053939637, now seen corresponding path program 1 times [2021-11-04 13:13:48,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 13:13:48,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400235058] [2021-11-04 13:13:48,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 13:13:48,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 13:13:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 13:13:48,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 13:13:48,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 13:13:48,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400235058] [2021-11-04 13:13:48,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400235058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 13:13:48,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 13:13:48,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 13:13:48,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22132234] [2021-11-04 13:13:48,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 13:13:48,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 13:13:48,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 13:13:48,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 13:13:48,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 13:13:48,291 INFO L87 Difference]: Start difference. First operand 17248 states and 21862 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:13:50,368 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:15:55,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 13:15:55,377 INFO L93 Difference]: Finished difference Result 17248 states and 21862 transitions. [2021-11-04 13:15:55,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 13:15:55,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-04 13:15:55,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 13:15:55,405 INFO L225 Difference]: With dead ends: 17248 [2021-11-04 13:15:55,408 INFO L226 Difference]: Without dead ends: 17244 [2021-11-04 13:15:55,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.10ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 13:15:55,419 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 21827 mSDsluCounter, 21795 mSDsCounter, 0 mSdLazyCounter, 43340 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97400.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21827 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 43367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 207.19ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 124782.88ms IncrementalHoareTripleChecker+Time [2021-11-04 13:15:55,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21827 Valid, 348 Invalid, 43367 Unknown, 0 Unchecked, 207.19ms Time], IncrementalHoareTripleChecker [26 Valid, 43340 Invalid, 1 Unknown, 0 Unchecked, 124782.88ms Time] [2021-11-04 13:15:55,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17244 states. [2021-11-04 13:15:55,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17244 to 17244. [2021-11-04 13:15:55,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17244 states, 17051 states have (on average 1.2717142689578325) internal successors, (21684), 17135 states have internal predecessors, (21684), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-04 13:15:55,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17244 states to 17244 states and 21858 transitions. [2021-11-04 13:15:55,960 INFO L78 Accepts]: Start accepts. Automaton has 17244 states and 21858 transitions. Word has length 34 [2021-11-04 13:15:55,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 13:15:55,962 INFO L470 AbstractCegarLoop]: Abstraction has 17244 states and 21858 transitions. [2021-11-04 13:15:55,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:15:55,963 INFO L276 IsEmpty]: Start isEmpty. Operand 17244 states and 21858 transitions. [2021-11-04 13:15:55,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-04 13:15:55,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 13:15:55,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 13:15:55,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 13:15:55,966 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-04 13:15:55,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 13:15:55,967 INFO L85 PathProgramCache]: Analyzing trace with hash -774433640, now seen corresponding path program 1 times [2021-11-04 13:15:55,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 13:15:55,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054938046] [2021-11-04 13:15:55,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 13:15:55,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 13:15:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 13:15:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 13:15:56,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 13:15:56,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054938046] [2021-11-04 13:15:56,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054938046] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 13:15:56,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 13:15:56,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 13:15:56,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601956386] [2021-11-04 13:15:56,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 13:15:56,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 13:15:56,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 13:15:56,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 13:15:56,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 13:15:56,186 INFO L87 Difference]: Start difference. First operand 17244 states and 21858 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:15:58,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:18:04,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:18:19,687 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 13:18:20,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 13:18:20,639 INFO L93 Difference]: Finished difference Result 17332 states and 21964 transitions. [2021-11-04 13:18:20,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 13:18:20,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-04 13:18:20,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 13:18:20,663 INFO L225 Difference]: With dead ends: 17332 [2021-11-04 13:18:20,663 INFO L226 Difference]: Without dead ends: 17328 [2021-11-04 13:18:20,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.12ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 13:18:20,669 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 19877 mSDsluCounter, 23721 mSDsCounter, 0 mSdLazyCounter, 45554 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 109812.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19877 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 45619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 189.46ms SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 45554 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 141999.73ms IncrementalHoareTripleChecker+Time [2021-11-04 13:18:20,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19877 Valid, 348 Invalid, 45619 Unknown, 0 Unchecked, 189.46ms Time], IncrementalHoareTripleChecker [63 Valid, 45554 Invalid, 2 Unknown, 0 Unchecked, 141999.73ms Time] [2021-11-04 13:18:20,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17328 states. [2021-11-04 13:18:21,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17328 to 17240. [2021-11-04 13:18:21,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17240 states, 17049 states have (on average 1.2716288345357498) internal successors, (21680), 17131 states have internal predecessors, (21680), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-04 13:18:21,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17240 states to 17240 states and 21854 transitions. [2021-11-04 13:18:21,160 INFO L78 Accepts]: Start accepts. Automaton has 17240 states and 21854 transitions. Word has length 36 [2021-11-04 13:18:21,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 13:18:21,160 INFO L470 AbstractCegarLoop]: Abstraction has 17240 states and 21854 transitions. [2021-11-04 13:18:21,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:18:21,161 INFO L276 IsEmpty]: Start isEmpty. Operand 17240 states and 21854 transitions. [2021-11-04 13:18:21,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-04 13:18:21,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 13:18:21,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 13:18:21,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 13:18:21,163 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [dc2114x_autoconfErr0ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr1ASSERT_VIOLATIONERROR_FUNCTION, dc2114x_autoconfErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-04 13:18:21,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 13:18:21,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1199528453, now seen corresponding path program 1 times [2021-11-04 13:18:21,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 13:18:21,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070206283] [2021-11-04 13:18:21,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 13:18:21,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 13:18:21,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 13:18:21,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 13:18:21,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 13:18:21,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070206283] [2021-11-04 13:18:21,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070206283] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 13:18:21,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 13:18:21,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 13:18:21,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647097843] [2021-11-04 13:18:21,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 13:18:21,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 13:18:21,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 13:18:21,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 13:18:21,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 13:18:21,339 INFO L87 Difference]: Start difference. First operand 17240 states and 21854 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 13:18:23,388 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15