./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1e656e08f859c02a2fcbde115f6fa3d541385535606558c0d455741014c679db --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 16:51:33,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 16:51:33,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 16:51:33,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 16:51:33,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 16:51:33,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 16:51:33,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 16:51:33,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 16:51:33,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 16:51:33,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 16:51:33,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 16:51:33,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 16:51:33,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 16:51:33,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 16:51:33,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 16:51:33,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 16:51:33,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 16:51:33,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 16:51:33,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 16:51:33,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 16:51:33,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 16:51:33,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 16:51:33,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 16:51:33,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 16:51:33,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 16:51:33,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 16:51:33,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 16:51:33,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 16:51:33,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 16:51:33,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 16:51:33,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 16:51:33,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 16:51:33,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 16:51:33,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 16:51:33,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 16:51:33,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 16:51:33,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 16:51:33,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 16:51:33,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 16:51:33,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 16:51:33,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 16:51:33,137 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 16:51:33,161 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 16:51:33,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 16:51:33,161 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 16:51:33,162 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 16:51:33,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 16:51:33,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 16:51:33,163 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 16:51:33,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 16:51:33,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 16:51:33,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 16:51:33,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 16:51:33,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 16:51:33,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 16:51:33,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 16:51:33,164 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 16:51:33,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 16:51:33,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 16:51:33,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 16:51:33,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 16:51:33,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:51:33,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 16:51:33,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 16:51:33,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 16:51:33,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 16:51:33,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 16:51:33,166 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 16:51:33,166 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 16:51:33,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 16:51:33,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 16:51:33,167 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e656e08f859c02a2fcbde115f6fa3d541385535606558c0d455741014c679db [2021-11-06 16:51:33,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 16:51:33,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 16:51:33,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 16:51:33,367 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 16:51:33,367 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 16:51:33,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i [2021-11-06 16:51:33,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fca6d5a0c/94d0508f12114fef80881f05d7719e8a/FLAG5a785153d [2021-11-06 16:51:34,156 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 16:51:34,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i [2021-11-06 16:51:34,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fca6d5a0c/94d0508f12114fef80881f05d7719e8a/FLAG5a785153d [2021-11-06 16:51:34,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fca6d5a0c/94d0508f12114fef80881f05d7719e8a [2021-11-06 16:51:34,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 16:51:34,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 16:51:34,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 16:51:34,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 16:51:34,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 16:51:34,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:51:34" (1/1) ... [2021-11-06 16:51:34,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197ee7ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:51:34, skipping insertion in model container [2021-11-06 16:51:34,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:51:34" (1/1) ... [2021-11-06 16:51:34,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 16:51:34,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 16:51:38,516 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i[602654,602667] [2021-11-06 16:51:38,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:51:38,869 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 16:51:39,257 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i[602654,602667] [2021-11-06 16:51:39,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:51:39,652 INFO L208 MainTranslator]: Completed translation [2021-11-06 16:51:39,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:51:39 WrapperNode [2021-11-06 16:51:39,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 16:51:39,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 16:51:39,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 16:51:39,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 16:51:39,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:51:39" (1/1) ... [2021-11-06 16:51:39,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:51:39" (1/1) ... [2021-11-06 16:51:42,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 16:51:42,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 16:51:42,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 16:51:42,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 16:51:42,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:51:39" (1/1) ... [2021-11-06 16:51:42,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:51:39" (1/1) ... [2021-11-06 16:51:42,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:51:39" (1/1) ... [2021-11-06 16:51:42,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:51:39" (1/1) ... [2021-11-06 16:51:44,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:51:39" (1/1) ... [2021-11-06 16:51:44,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:51:39" (1/1) ... [2021-11-06 16:51:44,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:51:39" (1/1) ... [2021-11-06 16:51:45,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 16:51:45,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 16:51:45,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 16:51:45,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 16:51:45,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:51:39" (1/1) ... [2021-11-06 16:51:45,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:51:45,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 16:51:45,103 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) [2021-11-06 16:51:45,121 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 [2021-11-06 16:51:45,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 16:51:45,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 16:51:45,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 16:51:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 16:51:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 16:51:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 16:51:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 16:51:45,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 16:51:45,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 16:51:45,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 16:51:45,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 16:51:45,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 16:51:45,137 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_scan_stm [2021-11-06 16:51:45,137 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_scan_stm [2021-11-06 16:51:45,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 16:51:45,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 16:51:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 16:51:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 16:51:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_plt_init [2021-11-06 16:51:45,138 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_plt_init [2021-11-06 16:51:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 16:56:55,206 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 16:56:55,206 INFO L299 CfgBuilder]: Removed 19649 assume(true) statements. [2021-11-06 16:56:55,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:56:55 BoogieIcfgContainer [2021-11-06 16:56:55,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 16:56:55,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 16:56:55,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 16:56:55,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 16:56:55,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 04:51:34" (1/3) ... [2021-11-06 16:56:55,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f248909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:56:55, skipping insertion in model container [2021-11-06 16:56:55,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:51:39" (2/3) ... [2021-11-06 16:56:55,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f248909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:56:55, skipping insertion in model container [2021-11-06 16:56:55,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:56:55" (3/3) ... [2021-11-06 16:56:55,230 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--ti--wl12xx--wl12xx.ko-entry_point.cil.out.i [2021-11-06 16:56:55,234 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 16:56:55,234 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-06 16:56:55,312 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 16:56:55,316 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 [2021-11-06 16:56:55,317 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-06 16:56:55,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 17765 states, 17738 states have (on average 1.400665238471079) internal successors, (24845), 17748 states have internal predecessors, (24845), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2021-11-06 16:56:55,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-06 16:56:55,511 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:56:55,512 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:56:55,513 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting wl12xx_plt_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-06 16:56:55,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:56:55,516 INFO L85 PathProgramCache]: Analyzing trace with hash -554712371, now seen corresponding path program 1 times [2021-11-06 16:56:55,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:56:55,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982240420] [2021-11-06 16:56:55,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:56:55,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:56:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:56:56,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-06 16:56:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:56:56,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-06 16:56:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:56:57,019 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-06 16:56:57,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:56:57,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982240420] [2021-11-06 16:56:57,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982240420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:56:57,020 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:56:57,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:56:57,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489629505] [2021-11-06 16:56:57,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:56:57,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:56:57,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:56:57,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:56:57,076 INFO L87 Difference]: Start difference. First operand has 17765 states, 17738 states have (on average 1.400665238471079) internal successors, (24845), 17748 states have internal predecessors, (24845), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-06 16:57:27,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:57:27,603 INFO L93 Difference]: Finished difference Result 35573 states and 49845 transitions. [2021-11-06 16:57:27,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:57:27,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 186 [2021-11-06 16:57:27,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:57:27,679 INFO L225 Difference]: With dead ends: 35573 [2021-11-06 16:57:27,680 INFO L226 Difference]: Without dead ends: 17726 [2021-11-06 16:57:27,726 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:57:27,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17726 states. [2021-11-06 16:57:28,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17726 to 17679. [2021-11-06 16:57:28,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17679 states, 17653 states have (on average 1.345097150625956) internal successors, (23745), 17662 states have internal predecessors, (23745), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2021-11-06 16:57:28,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17679 states to 17679 states and 23779 transitions. [2021-11-06 16:57:28,255 INFO L78 Accepts]: Start accepts. Automaton has 17679 states and 23779 transitions. Word has length 186 [2021-11-06 16:57:28,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:57:28,256 INFO L470 AbstractCegarLoop]: Abstraction has 17679 states and 23779 transitions. [2021-11-06 16:57:28,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-06 16:57:28,257 INFO L276 IsEmpty]: Start isEmpty. Operand 17679 states and 23779 transitions. [2021-11-06 16:57:28,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-06 16:57:28,290 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:57:28,291 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:57:28,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 16:57:28,291 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting wl12xx_plt_initErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-06 16:57:28,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:57:28,292 INFO L85 PathProgramCache]: Analyzing trace with hash 654632037, now seen corresponding path program 1 times [2021-11-06 16:57:28,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:57:28,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657158601] [2021-11-06 16:57:28,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:57:28,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:57:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:57:29,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-06 16:57:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:57:29,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-06 16:57:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:57:29,375 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-06 16:57:29,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:57:29,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657158601] [2021-11-06 16:57:29,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657158601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:57:29,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:57:29,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 16:57:29,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565950912] [2021-11-06 16:57:29,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 16:57:29,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:57:29,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 16:57:29,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 16:57:29,379 INFO L87 Difference]: Start difference. First operand 17679 states and 23779 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-06 16:58:09,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:58:09,316 INFO L93 Difference]: Finished difference Result 41654 states and 56055 transitions. [2021-11-06 16:58:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 16:58:09,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 188 [2021-11-06 16:58:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:58:09,388 INFO L225 Difference]: With dead ends: 41654 [2021-11-06 16:58:09,389 INFO L226 Difference]: Without dead ends: 24089 [2021-11-06 16:58:09,422 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 16:58:09,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24089 states. [2021-11-06 16:58:09,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24089 to 24024. [2021-11-06 16:58:09,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24024 states, 23981 states have (on average 1.344814644927234) internal successors, (32250), 23994 states have internal predecessors, (32250), 27 states have call successors, (27), 6 states have call predecessors, (27), 10 states have return successors, (49), 25 states have call predecessors, (49), 27 states have call successors, (49) [2021-11-06 16:58:09,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24024 states to 24024 states and 32326 transitions. [2021-11-06 16:58:09,867 INFO L78 Accepts]: Start accepts. Automaton has 24024 states and 32326 transitions. Word has length 188 [2021-11-06 16:58:09,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:58:09,869 INFO L470 AbstractCegarLoop]: Abstraction has 24024 states and 32326 transitions. [2021-11-06 16:58:09,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-06 16:58:09,869 INFO L276 IsEmpty]: Start isEmpty. Operand 24024 states and 32326 transitions. [2021-11-06 16:58:09,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-06 16:58:09,876 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:58:09,880 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:58:09,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 16:58:09,880 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-06 16:58:09,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:58:09,881 INFO L85 PathProgramCache]: Analyzing trace with hash 879763896, now seen corresponding path program 1 times [2021-11-06 16:58:09,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:58:09,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705702482] [2021-11-06 16:58:09,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:58:09,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:58:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:58:10,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:58:10,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:58:10,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705702482] [2021-11-06 16:58:10,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705702482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:58:10,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:58:10,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:58:10,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867450680] [2021-11-06 16:58:10,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:58:10,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:58:10,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:58:10,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:58:10,850 INFO L87 Difference]: Start difference. First operand 24024 states and 32326 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-11-06 16:58:14,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:58:14,072 INFO L93 Difference]: Finished difference Result 70408 states and 95277 transitions. [2021-11-06 16:58:14,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:58:14,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 187 [2021-11-06 16:58:14,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:58:14,205 INFO L225 Difference]: With dead ends: 70408 [2021-11-06 16:58:14,205 INFO L226 Difference]: Without dead ends: 46498 [2021-11-06 16:58:14,267 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:58:14,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46498 states. [2021-11-06 16:58:15,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46498 to 46494. [2021-11-06 16:58:15,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46494 states, 46414 states have (on average 1.3556685482828457) internal successors, (62922), 46435 states have internal predecessors, (62922), 54 states have call successors, (54), 12 states have call predecessors, (54), 20 states have return successors, (98), 50 states have call predecessors, (98), 54 states have call successors, (98) [2021-11-06 16:58:15,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46494 states to 46494 states and 63074 transitions. [2021-11-06 16:58:15,412 INFO L78 Accepts]: Start accepts. Automaton has 46494 states and 63074 transitions. Word has length 187 [2021-11-06 16:58:15,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:58:15,413 INFO L470 AbstractCegarLoop]: Abstraction has 46494 states and 63074 transitions. [2021-11-06 16:58:15,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-11-06 16:58:15,413 INFO L276 IsEmpty]: Start isEmpty. Operand 46494 states and 63074 transitions. [2021-11-06 16:58:15,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-06 16:58:15,418 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:58:15,418 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:58:15,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 16:58:15,418 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-06 16:58:15,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:58:15,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1698691325, now seen corresponding path program 1 times [2021-11-06 16:58:15,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:58:15,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529872413] [2021-11-06 16:58:15,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:58:15,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:58:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:58:16,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:58:16,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:58:16,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529872413] [2021-11-06 16:58:16,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529872413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:58:16,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:58:16,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:58:16,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867634581] [2021-11-06 16:58:16,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:58:16,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:58:16,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:58:16,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:58:16,511 INFO L87 Difference]: Start difference. First operand 46494 states and 63074 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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) [2021-11-06 16:58:17,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:58:17,016 INFO L93 Difference]: Finished difference Result 46494 states and 63074 transitions. [2021-11-06 16:58:17,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:58:17,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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 195 [2021-11-06 16:58:17,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:58:17,135 INFO L225 Difference]: With dead ends: 46494 [2021-11-06 16:58:17,135 INFO L226 Difference]: Without dead ends: 46492 [2021-11-06 16:58:17,162 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:58:17,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46492 states. [2021-11-06 16:58:18,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46492 to 46492. [2021-11-06 16:58:18,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46492 states, 46413 states have (on average 1.3556546657186563) internal successors, (62920), 46433 states have internal predecessors, (62920), 54 states have call successors, (54), 12 states have call predecessors, (54), 20 states have return successors, (98), 50 states have call predecessors, (98), 54 states have call successors, (98) [2021-11-06 16:58:18,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46492 states to 46492 states and 63072 transitions. [2021-11-06 16:58:18,303 INFO L78 Accepts]: Start accepts. Automaton has 46492 states and 63072 transitions. Word has length 195 [2021-11-06 16:58:18,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:58:18,303 INFO L470 AbstractCegarLoop]: Abstraction has 46492 states and 63072 transitions. [2021-11-06 16:58:18,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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) [2021-11-06 16:58:18,303 INFO L276 IsEmpty]: Start isEmpty. Operand 46492 states and 63072 transitions. [2021-11-06 16:58:18,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-06 16:58:18,309 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:58:18,309 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:58:18,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 16:58:18,309 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-06 16:58:18,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:58:18,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1119766122, now seen corresponding path program 1 times [2021-11-06 16:58:18,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:58:18,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301290007] [2021-11-06 16:58:18,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:58:18,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:58:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:58:19,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:58:19,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:58:19,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301290007] [2021-11-06 16:58:19,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301290007] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:58:19,374 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:58:19,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:58:19,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895677825] [2021-11-06 16:58:19,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:58:19,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:58:19,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:58:19,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:58:19,376 INFO L87 Difference]: Start difference. First operand 46492 states and 63072 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 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) [2021-11-06 16:58:19,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:58:19,983 INFO L93 Difference]: Finished difference Result 46492 states and 63072 transitions. [2021-11-06 16:58:19,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:58:19,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 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 196 [2021-11-06 16:58:19,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:58:20,082 INFO L225 Difference]: With dead ends: 46492 [2021-11-06 16:58:20,082 INFO L226 Difference]: Without dead ends: 46490 [2021-11-06 16:58:20,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:58:20,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46490 states. [2021-11-06 16:58:20,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46490 to 46490. [2021-11-06 16:58:21,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46490 states, 46412 states have (on average 1.3556407825562355) internal successors, (62918), 46431 states have internal predecessors, (62918), 54 states have call successors, (54), 12 states have call predecessors, (54), 20 states have return successors, (98), 50 states have call predecessors, (98), 54 states have call successors, (98) [2021-11-06 16:58:21,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46490 states to 46490 states and 63070 transitions. [2021-11-06 16:58:21,107 INFO L78 Accepts]: Start accepts. Automaton has 46490 states and 63070 transitions. Word has length 196 [2021-11-06 16:58:21,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:58:21,108 INFO L470 AbstractCegarLoop]: Abstraction has 46490 states and 63070 transitions. [2021-11-06 16:58:21,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 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) [2021-11-06 16:58:21,108 INFO L276 IsEmpty]: Start isEmpty. Operand 46490 states and 63070 transitions. [2021-11-06 16:58:21,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-06 16:58:21,114 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:58:21,115 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:58:21,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 16:58:21,115 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-06 16:58:21,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:58:21,117 INFO L85 PathProgramCache]: Analyzing trace with hash -352954003, now seen corresponding path program 1 times [2021-11-06 16:58:21,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:58:21,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659604578] [2021-11-06 16:58:21,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:58:21,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:58:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:58:22,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:58:22,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:58:22,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659604578] [2021-11-06 16:58:22,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659604578] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:58:22,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:58:22,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:58:22,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247053899] [2021-11-06 16:58:22,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:58:22,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:58:22,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:58:22,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:58:22,136 INFO L87 Difference]: Start difference. First operand 46490 states and 63070 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 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) [2021-11-06 16:58:22,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:58:22,756 INFO L93 Difference]: Finished difference Result 46490 states and 63070 transitions. [2021-11-06 16:58:22,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:58:22,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 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 197 [2021-11-06 16:58:22,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:58:22,849 INFO L225 Difference]: With dead ends: 46490 [2021-11-06 16:58:22,849 INFO L226 Difference]: Without dead ends: 46488 [2021-11-06 16:58:22,873 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:58:22,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46488 states. [2021-11-06 16:58:23,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46488 to 46488. [2021-11-06 16:58:23,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46488 states, 46411 states have (on average 1.3556268987955442) internal successors, (62916), 46429 states have internal predecessors, (62916), 54 states have call successors, (54), 12 states have call predecessors, (54), 20 states have return successors, (98), 50 states have call predecessors, (98), 54 states have call successors, (98) [2021-11-06 16:58:23,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46488 states to 46488 states and 63068 transitions. [2021-11-06 16:58:23,863 INFO L78 Accepts]: Start accepts. Automaton has 46488 states and 63068 transitions. Word has length 197 [2021-11-06 16:58:23,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:58:23,864 INFO L470 AbstractCegarLoop]: Abstraction has 46488 states and 63068 transitions. [2021-11-06 16:58:23,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 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) [2021-11-06 16:58:23,864 INFO L276 IsEmpty]: Start isEmpty. Operand 46488 states and 63068 transitions. [2021-11-06 16:58:23,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-06 16:58:23,868 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:58:23,869 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:58:23,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 16:58:23,869 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-06 16:58:23,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:58:23,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1943385216, now seen corresponding path program 1 times [2021-11-06 16:58:23,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:58:23,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351822767] [2021-11-06 16:58:23,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:58:23,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:58:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:58:24,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:58:24,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:58:24,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351822767] [2021-11-06 16:58:24,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351822767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:58:24,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:58:24,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:58:24,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966914722] [2021-11-06 16:58:24,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:58:24,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:58:24,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:58:24,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:58:24,834 INFO L87 Difference]: Start difference. First operand 46488 states and 63068 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 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)