./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--atheros--atlx--atl1.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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--atheros--atlx--atl1.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 a50782c14122c4e96fba85550d8baa150b55d4da62dbebbee116fe7764246c85 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 14:34:18,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 14:34:18,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 14:34:18,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 14:34:18,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 14:34:18,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 14:34:18,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 14:34:18,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 14:34:18,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 14:34:18,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 14:34:18,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 14:34:18,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 14:34:18,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 14:34:18,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 14:34:18,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 14:34:18,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 14:34:18,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 14:34:18,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 14:34:18,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 14:34:18,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 14:34:18,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 14:34:18,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 14:34:18,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 14:34:18,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 14:34:18,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 14:34:18,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 14:34:18,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 14:34:18,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 14:34:18,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 14:34:18,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 14:34:18,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 14:34:18,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 14:34:18,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 14:34:18,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 14:34:18,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 14:34:18,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 14:34:18,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 14:34:18,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 14:34:18,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 14:34:18,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 14:34:18,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 14:34:18,349 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 14:34:18,372 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 14:34:18,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 14:34:18,372 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 14:34:18,372 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 14:34:18,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 14:34:18,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 14:34:18,374 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 14:34:18,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 14:34:18,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 14:34:18,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 14:34:18,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 14:34:18,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 14:34:18,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 14:34:18,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 14:34:18,375 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 14:34:18,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 14:34:18,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 14:34:18,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 14:34:18,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 14:34:18,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 14:34:18,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 14:34:18,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 14:34:18,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 14:34:18,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 14:34:18,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 14:34:18,377 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 14:34:18,377 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 14:34:18,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 14:34:18,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 14:34:18,377 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a50782c14122c4e96fba85550d8baa150b55d4da62dbebbee116fe7764246c85 [2021-11-06 14:34:18,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 14:34:18,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 14:34:18,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 14:34:18,601 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 14:34:18,602 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 14:34:18,602 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--atheros--atlx--atl1.ko-entry_point.cil.out.i [2021-11-06 14:34:18,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6856f432c/03961496fc69475f8ac01aee602fc4d9/FLAGef49ea484 [2021-11-06 14:34:19,337 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 14:34:19,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--atheros--atlx--atl1.ko-entry_point.cil.out.i [2021-11-06 14:34:19,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6856f432c/03961496fc69475f8ac01aee602fc4d9/FLAGef49ea484 [2021-11-06 14:34:19,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6856f432c/03961496fc69475f8ac01aee602fc4d9 [2021-11-06 14:34:19,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 14:34:19,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 14:34:19,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 14:34:19,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 14:34:19,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 14:34:19,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:34:19" (1/1) ... [2021-11-06 14:34:19,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2352d825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:34:19, skipping insertion in model container [2021-11-06 14:34:19,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:34:19" (1/1) ... [2021-11-06 14:34:19,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 14:34:19,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 14:34:20,983 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--atheros--atlx--atl1.ko-entry_point.cil.out.i[198904,198917] [2021-11-06 14:34:22,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 14:34:22,140 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 14:34:22,249 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--atheros--atlx--atl1.ko-entry_point.cil.out.i[198904,198917] [2021-11-06 14:34:22,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 14:34:22,629 INFO L208 MainTranslator]: Completed translation [2021-11-06 14:34:22,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:34:22 WrapperNode [2021-11-06 14:34:22,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 14:34:22,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 14:34:22,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 14:34:22,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 14:34:22,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:34:22" (1/1) ... [2021-11-06 14:34:22,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:34:22" (1/1) ... [2021-11-06 14:34:24,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 14:34:24,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 14:34:24,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 14:34:24,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 14:34:24,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:34:22" (1/1) ... [2021-11-06 14:34:24,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:34:22" (1/1) ... [2021-11-06 14:34:24,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:34:22" (1/1) ... [2021-11-06 14:34:24,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:34:22" (1/1) ... [2021-11-06 14:34:24,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:34:22" (1/1) ... [2021-11-06 14:34:25,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:34:22" (1/1) ... [2021-11-06 14:34:25,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:34:22" (1/1) ... [2021-11-06 14:34:25,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 14:34:25,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 14:34:25,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 14:34:25,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 14:34:25,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:34:22" (1/1) ... [2021-11-06 14:34:25,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 14:34:25,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 14:34:25,548 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 14:34:25,586 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 14:34:25,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-06 14:34:25,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 14:34:25,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 14:34:25,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 14:34:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 14:34:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 14:34:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 14:34:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 14:34:25,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 14:34:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 14:34:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 14:34:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 14:34:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 14:34:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 14:34:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 14:34:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 14:46:50,046 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 14:46:50,046 INFO L299 CfgBuilder]: Removed 8602 assume(true) statements. [2021-11-06 14:46:50,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:46:50 BoogieIcfgContainer [2021-11-06 14:46:50,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 14:46:50,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 14:46:50,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 14:46:50,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 14:46:50,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 02:34:19" (1/3) ... [2021-11-06 14:46:50,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36070a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:46:50, skipping insertion in model container [2021-11-06 14:46:50,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:34:22" (2/3) ... [2021-11-06 14:46:50,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36070a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:46:50, skipping insertion in model container [2021-11-06 14:46:50,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:46:50" (3/3) ... [2021-11-06 14:46:50,058 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--atheros--atlx--atl1.ko-entry_point.cil.out.i [2021-11-06 14:46:50,062 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 14:46:50,062 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-06 14:46:50,114 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 14:46:50,118 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 14:46:50,118 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-06 14:46:50,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 8263 states, 8261 states have (on average 1.3846991889601743) internal successors, (11439), 8262 states have internal predecessors, (11439), 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 14:46:50,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-06 14:46:50,215 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:46:50,216 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] [2021-11-06 14:46:50,216 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:46:50,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:46:50,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1561447135, now seen corresponding path program 1 times [2021-11-06 14:46:50,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:46:50,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134867320] [2021-11-06 14:46:50,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:46:50,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:46:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:46:51,224 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 14:46:51,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:46:51,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134867320] [2021-11-06 14:46:51,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134867320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:46:51,228 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:46:51,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:46:51,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041993077] [2021-11-06 14:46:51,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:46:51,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:46:51,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:46:51,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:46:51,257 INFO L87 Difference]: Start difference. First operand has 8263 states, 8261 states have (on average 1.3846991889601743) internal successors, (11439), 8262 states have internal predecessors, (11439), 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) Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 14:46:53,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:46:53,898 INFO L93 Difference]: Finished difference Result 24675 states and 34163 transitions. [2021-11-06 14:46:53,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:46:53,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2021-11-06 14:46:53,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:46:53,968 INFO L225 Difference]: With dead ends: 24675 [2021-11-06 14:46:53,968 INFO L226 Difference]: Without dead ends: 16265 [2021-11-06 14:46:53,991 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 14:46:54,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16265 states. [2021-11-06 14:46:54,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16265 to 16265. [2021-11-06 14:46:54,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16265 states, 16264 states have (on average 1.3639940973930154) internal successors, (22184), 16264 states have internal predecessors, (22184), 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 14:46:54,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16265 states to 16265 states and 22184 transitions. [2021-11-06 14:46:54,387 INFO L78 Accepts]: Start accepts. Automaton has 16265 states and 22184 transitions. Word has length 41 [2021-11-06 14:46:54,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:46:54,387 INFO L470 AbstractCegarLoop]: Abstraction has 16265 states and 22184 transitions. [2021-11-06 14:46:54,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 14:46:54,388 INFO L276 IsEmpty]: Start isEmpty. Operand 16265 states and 22184 transitions. [2021-11-06 14:46:54,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-06 14:46:54,392 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:46:54,392 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] [2021-11-06 14:46:54,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 14:46:54,392 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:46:54,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:46:54,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1614238169, now seen corresponding path program 1 times [2021-11-06 14:46:54,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:46:54,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915064200] [2021-11-06 14:46:54,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:46:54,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:46:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:46:54,963 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 14:46:54,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:46:54,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915064200] [2021-11-06 14:46:54,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915064200] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:46:54,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:46:54,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 14:46:54,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736849744] [2021-11-06 14:46:54,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 14:46:54,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:46:54,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 14:46:54,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 14:46:54,966 INFO L87 Difference]: Start difference. First operand 16265 states and 22184 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 14:46:57,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:46:57,375 INFO L93 Difference]: Finished difference Result 32472 states and 44298 transitions. [2021-11-06 14:46:57,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 14:46:57,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 44 [2021-11-06 14:46:57,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:46:57,457 INFO L225 Difference]: With dead ends: 32472 [2021-11-06 14:46:57,458 INFO L226 Difference]: Without dead ends: 32466 [2021-11-06 14:46:57,470 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 14:46:57,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32466 states. [2021-11-06 14:46:57,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32466 to 32290. [2021-11-06 14:46:57,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32290 states, 32289 states have (on average 1.3648920685063024) internal successors, (44071), 32289 states have internal predecessors, (44071), 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 14:46:58,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32290 states to 32290 states and 44071 transitions. [2021-11-06 14:46:58,007 INFO L78 Accepts]: Start accepts. Automaton has 32290 states and 44071 transitions. Word has length 44 [2021-11-06 14:46:58,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:46:58,008 INFO L470 AbstractCegarLoop]: Abstraction has 32290 states and 44071 transitions. [2021-11-06 14:46:58,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 14:46:58,009 INFO L276 IsEmpty]: Start isEmpty. Operand 32290 states and 44071 transitions. [2021-11-06 14:46:58,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-06 14:46:58,034 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:46:58,035 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 14:46:58,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 14:46:58,036 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:46:58,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:46:58,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1037572139, now seen corresponding path program 1 times [2021-11-06 14:46:58,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:46:58,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546395054] [2021-11-06 14:46:58,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:46:58,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:46:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:46:58,685 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-06 14:46:58,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:46:58,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546395054] [2021-11-06 14:46:58,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546395054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:46:58,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:46:58,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:46:58,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089262375] [2021-11-06 14:46:58,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:46:58,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:46:58,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:46:58,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:46:58,688 INFO L87 Difference]: Start difference. First operand 32290 states and 44071 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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 14:46:59,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:46:59,629 INFO L93 Difference]: Finished difference Result 89496 states and 122129 transitions. [2021-11-06 14:46:59,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:46:59,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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 144 [2021-11-06 14:46:59,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:46:59,764 INFO L225 Difference]: With dead ends: 89496 [2021-11-06 14:46:59,765 INFO L226 Difference]: Without dead ends: 57264 [2021-11-06 14:46:59,824 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 14:46:59,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57264 states. [2021-11-06 14:47:00,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57264 to 57194. [2021-11-06 14:47:00,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57194 states, 57193 states have (on average 1.3645551028972076) internal successors, (78043), 57193 states have internal predecessors, (78043), 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 14:47:00,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57194 states to 57194 states and 78043 transitions. [2021-11-06 14:47:00,850 INFO L78 Accepts]: Start accepts. Automaton has 57194 states and 78043 transitions. Word has length 144 [2021-11-06 14:47:00,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:47:00,852 INFO L470 AbstractCegarLoop]: Abstraction has 57194 states and 78043 transitions. [2021-11-06 14:47:00,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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 14:47:00,852 INFO L276 IsEmpty]: Start isEmpty. Operand 57194 states and 78043 transitions. [2021-11-06 14:47:00,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-06 14:47:00,893 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:47:00,894 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 14:47:00,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 14:47:00,894 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:47:00,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:47:00,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1678695440, now seen corresponding path program 1 times [2021-11-06 14:47:00,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:47:00,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651866082] [2021-11-06 14:47:00,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:47:00,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:47:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:47:01,416 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-06 14:47:01,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:47:01,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651866082] [2021-11-06 14:47:01,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651866082] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:47:01,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:47:01,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:47:01,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695692463] [2021-11-06 14:47:01,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:47:01,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:47:01,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:47:01,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:47:01,419 INFO L87 Difference]: Start difference. First operand 57194 states and 78043 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 14:47:03,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:47:03,509 INFO L93 Difference]: Finished difference Result 152840 states and 208285 transitions. [2021-11-06 14:47:03,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:47:03,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 149 [2021-11-06 14:47:03,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:47:03,722 INFO L225 Difference]: With dead ends: 152840 [2021-11-06 14:47:03,723 INFO L226 Difference]: Without dead ends: 95704 [2021-11-06 14:47:03,824 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 14:47:03,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95704 states. [2021-11-06 14:47:05,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95704 to 95698. [2021-11-06 14:47:05,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95698 states, 95697 states have (on average 1.3615787328756388) internal successors, (130299), 95697 states have internal predecessors, (130299), 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 14:47:05,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95698 states to 95698 states and 130299 transitions. [2021-11-06 14:47:05,941 INFO L78 Accepts]: Start accepts. Automaton has 95698 states and 130299 transitions. Word has length 149 [2021-11-06 14:47:05,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:47:05,942 INFO L470 AbstractCegarLoop]: Abstraction has 95698 states and 130299 transitions. [2021-11-06 14:47:05,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 14:47:05,942 INFO L276 IsEmpty]: Start isEmpty. Operand 95698 states and 130299 transitions. [2021-11-06 14:47:05,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-06 14:47:05,997 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:47:05,998 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:47:05,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 14:47:05,998 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:47:05,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:47:05,998 INFO L85 PathProgramCache]: Analyzing trace with hash -811643192, now seen corresponding path program 1 times [2021-11-06 14:47:05,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:47:05,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731247878] [2021-11-06 14:47:05,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:47:05,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:47:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:47:06,640 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-06 14:47:06,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:47:06,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731247878] [2021-11-06 14:47:06,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731247878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:47:06,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:47:06,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:47:06,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291279341] [2021-11-06 14:47:06,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:47:06,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:47:06,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:47:06,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:47:06,642 INFO L87 Difference]: Start difference. First operand 95698 states and 130299 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 14:47:09,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:47:09,446 INFO L93 Difference]: Finished difference Result 276540 states and 376371 transitions. [2021-11-06 14:47:09,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:47:09,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 149 [2021-11-06 14:47:09,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:47:09,964 INFO L225 Difference]: With dead ends: 276540 [2021-11-06 14:47:09,964 INFO L226 Difference]: Without dead ends: 180900 [2021-11-06 14:47:10,247 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 14:47:10,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180900 states. [2021-11-06 14:47:13,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180900 to 180842. [2021-11-06 14:47:13,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180842 states, 180841 states have (on average 1.3606372448725677) internal successors, (246059), 180841 states have internal predecessors, (246059), 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 14:47:14,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180842 states to 180842 states and 246059 transitions. [2021-11-06 14:47:14,389 INFO L78 Accepts]: Start accepts. Automaton has 180842 states and 246059 transitions. Word has length 149 [2021-11-06 14:47:14,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:47:14,391 INFO L470 AbstractCegarLoop]: Abstraction has 180842 states and 246059 transitions. [2021-11-06 14:47:14,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 14:47:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 180842 states and 246059 transitions. [2021-11-06 14:47:14,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-06 14:47:14,517 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:47:14,518 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 14:47:14,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 14:47:14,518 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:47:14,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:47:14,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2107356629, now seen corresponding path program 1 times [2021-11-06 14:47:14,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:47:14,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16820122] [2021-11-06 14:47:14,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:47:14,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:47:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:47:14,973 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-06 14:47:14,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:47:14,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16820122] [2021-11-06 14:47:14,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16820122] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:47:14,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:47:14,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:47:14,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648505792] [2021-11-06 14:47:14,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:47:14,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:47:14,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:47:14,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:47:14,980 INFO L87 Difference]: Start difference. First operand 180842 states and 246059 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 14:47:20,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:47:20,239 INFO L93 Difference]: Finished difference Result 458490 states and 624709 transitions. [2021-11-06 14:47:20,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:47:20,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 161 [2021-11-06 14:47:20,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:47:20,874 INFO L225 Difference]: With dead ends: 458490 [2021-11-06 14:47:20,875 INFO L226 Difference]: Without dead ends: 277706 [2021-11-06 14:47:21,100 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 14:47:21,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277706 states.