./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--wireless--ath--wcn36xx--wcn36xx.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--wireless--ath--wcn36xx--wcn36xx.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 eaaec3cc0f5537133af92fa7cbd54bc8d5ff0f4d0c87a0d3c9d98d3d6549f9cf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 14:44:23,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 14:44:23,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 14:44:23,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 14:44:23,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 14:44:23,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 14:44:23,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 14:44:23,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 14:44:23,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 14:44:23,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 14:44:23,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 14:44:23,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 14:44:23,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 14:44:23,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 14:44:23,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 14:44:23,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 14:44:23,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 14:44:23,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 14:44:23,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 14:44:23,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 14:44:23,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 14:44:23,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 14:44:23,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 14:44:23,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 14:44:23,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 14:44:23,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 14:44:23,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 14:44:23,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 14:44:23,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 14:44:23,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 14:44:23,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 14:44:23,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 14:44:23,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 14:44:23,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 14:44:23,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 14:44:23,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 14:44:23,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 14:44:23,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 14:44:23,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 14:44:23,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 14:44:23,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 14:44:23,304 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 14:44:23,333 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 14:44:23,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 14:44:23,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 14:44:23,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 14:44:23,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 14:44:23,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 14:44:23,335 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 14:44:23,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 14:44:23,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 14:44:23,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 14:44:23,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 14:44:23,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 14:44:23,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 14:44:23,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 14:44:23,336 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 14:44:23,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 14:44:23,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 14:44:23,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 14:44:23,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 14:44:23,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 14:44:23,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 14:44:23,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 14:44:23,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 14:44:23,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 14:44:23,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 14:44:23,338 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 14:44:23,338 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 14:44:23,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 14:44:23,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 14:44:23,338 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eaaec3cc0f5537133af92fa7cbd54bc8d5ff0f4d0c87a0d3c9d98d3d6549f9cf [2021-11-06 14:44:23,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 14:44:23,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 14:44:23,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 14:44:23,543 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 14:44:23,543 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 14:44:23,544 INFO L432 ainManager$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--wireless--ath--wcn36xx--wcn36xx.ko-entry_point.cil.out.i [2021-11-06 14:44:23,606 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c58b7e648/d1bfef80a067408fb9b0bbc3c3c5a4b7/FLAG46b479780 [2021-11-06 14:44:24,189 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 14:44:24,190 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--wireless--ath--wcn36xx--wcn36xx.ko-entry_point.cil.out.i [2021-11-06 14:44:24,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c58b7e648/d1bfef80a067408fb9b0bbc3c3c5a4b7/FLAG46b479780 [2021-11-06 14:44:24,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c58b7e648/d1bfef80a067408fb9b0bbc3c3c5a4b7 [2021-11-06 14:44:24,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 14:44:24,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 14:44:24,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 14:44:24,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 14:44:24,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 14:44:24,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:44:24" (1/1) ... [2021-11-06 14:44:24,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71ef861b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:44:24, skipping insertion in model container [2021-11-06 14:44:24,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:44:24" (1/1) ... [2021-11-06 14:44:24,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 14:44:24,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 14:44:25,239 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--wireless--ath--wcn36xx--wcn36xx.ko-entry_point.cil.out.i[210460,210473] [2021-11-06 14:44:26,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 14:44:26,730 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 14:44:26,847 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--wireless--ath--wcn36xx--wcn36xx.ko-entry_point.cil.out.i[210460,210473] [2021-11-06 14:44:27,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 14:44:27,100 INFO L208 MainTranslator]: Completed translation [2021-11-06 14:44:27,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:44:27 WrapperNode [2021-11-06 14:44:27,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 14:44:27,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 14:44:27,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 14:44:27,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 14:44:27,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:44:27" (1/1) ... [2021-11-06 14:44:27,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:44:27" (1/1) ... [2021-11-06 14:44:29,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 14:44:29,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 14:44:29,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 14:44:29,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 14:44:29,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:44:27" (1/1) ... [2021-11-06 14:44:29,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:44:27" (1/1) ... [2021-11-06 14:44:29,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:44:27" (1/1) ... [2021-11-06 14:44:29,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:44:27" (1/1) ... [2021-11-06 14:44:30,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:44:27" (1/1) ... [2021-11-06 14:44:31,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:44:27" (1/1) ... [2021-11-06 14:44:31,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:44:27" (1/1) ... [2021-11-06 14:44:31,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 14:44:31,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 14:44:31,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 14:44:31,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 14:44:31,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:44:27" (1/1) ... [2021-11-06 14:44:31,815 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 14:44:31,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 14:44:31,844 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 14:44:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure wcn36xx_probe [2021-11-06 14:44:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure wcn36xx_probe [2021-11-06 14:44:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 14:44:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-06 14:44:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 14:44:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 14:44:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 14:44:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 14:44:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-11-06 14:44:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 14:44:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 14:44:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 14:44:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 14:44:31,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 14:44:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 14:44:31,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 14:44:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 14:44:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 14:44:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 14:44:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 14:44:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 14:44:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 14:44:31,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 14:44:31,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2021-11-06 14:44:31,859 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 14:47:48,081 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 14:47:48,082 INFO L299 CfgBuilder]: Removed 10107 assume(true) statements. [2021-11-06 14:47:48,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:47:48 BoogieIcfgContainer [2021-11-06 14:47:48,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 14:47:48,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 14:47:48,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 14:47:48,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 14:47:48,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 02:44:24" (1/3) ... [2021-11-06 14:47:48,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7827818e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:47:48, skipping insertion in model container [2021-11-06 14:47:48,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:44:27" (2/3) ... [2021-11-06 14:47:48,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7827818e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:47:48, skipping insertion in model container [2021-11-06 14:47:48,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:47:48" (3/3) ... [2021-11-06 14:47:48,104 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--wcn36xx--wcn36xx.ko-entry_point.cil.out.i [2021-11-06 14:47:48,108 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 14:47:48,109 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-06 14:47:48,172 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 14:47:48,176 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 14:47:48,176 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-06 14:47:48,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 13072 states, 13065 states have (on average 1.4880979716800613) internal successors, (19442), 13066 states have internal predecessors, (19442), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-06 14:47:48,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-06 14:47:48,330 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:47:48,330 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] [2021-11-06 14:47:48,331 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:47:48,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:47:48,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1923473427, now seen corresponding path program 1 times [2021-11-06 14:47:48,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:47:48,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922013158] [2021-11-06 14:47:48,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:47:48,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:47:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:47:49,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:47:49,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:47:49,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922013158] [2021-11-06 14:47:49,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922013158] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:47:49,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:47:49,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-06 14:47:49,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021946937] [2021-11-06 14:47:49,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 14:47:49,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:47:49,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 14:47:49,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-06 14:47:49,380 INFO L87 Difference]: Start difference. First operand has 13072 states, 13065 states have (on average 1.4880979716800613) internal successors, (19442), 13066 states have internal predecessors, (19442), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 14:47:57,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:47:57,335 INFO L93 Difference]: Finished difference Result 51978 states and 77395 transitions. [2021-11-06 14:47:57,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-06 14:47:57,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 37 [2021-11-06 14:47:57,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:47:57,480 INFO L225 Difference]: With dead ends: 51978 [2021-11-06 14:47:57,480 INFO L226 Difference]: Without dead ends: 38832 [2021-11-06 14:47:57,522 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2021-11-06 14:47:57,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38832 states. [2021-11-06 14:47:58,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38832 to 38812. [2021-11-06 14:47:58,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38812 states, 38796 states have (on average 1.476775956284153) internal successors, (57293), 38796 states have internal predecessors, (57293), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-06 14:47:58,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38812 states to 38812 states and 57311 transitions. [2021-11-06 14:47:58,922 INFO L78 Accepts]: Start accepts. Automaton has 38812 states and 57311 transitions. Word has length 37 [2021-11-06 14:47:58,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:47:58,924 INFO L470 AbstractCegarLoop]: Abstraction has 38812 states and 57311 transitions. [2021-11-06 14:47:58,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 14:47:58,924 INFO L276 IsEmpty]: Start isEmpty. Operand 38812 states and 57311 transitions. [2021-11-06 14:47:58,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-06 14:47:58,928 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:47:58,928 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 14:47:58,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 14:47:58,929 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:47:58,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:47:58,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1485643131, now seen corresponding path program 1 times [2021-11-06 14:47:58,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:47:58,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983279179] [2021-11-06 14:47:58,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:47:58,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:47:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:47:59,262 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 14:47:59,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:47:59,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983279179] [2021-11-06 14:47:59,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983279179] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:47:59,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:47:59,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 14:47:59,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591237455] [2021-11-06 14:47:59,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 14:47:59,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:47:59,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 14:47:59,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 14:47:59,267 INFO L87 Difference]: Start difference. First operand 38812 states and 57311 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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 14:48:00,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:48:00,324 INFO L93 Difference]: Finished difference Result 77551 states and 114538 transitions. [2021-11-06 14:48:00,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 14:48:00,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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 14:48:00,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:48:00,415 INFO L225 Difference]: With dead ends: 77551 [2021-11-06 14:48:00,416 INFO L226 Difference]: Without dead ends: 38811 [2021-11-06 14:48:00,480 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 14:48:00,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38811 states. [2021-11-06 14:48:01,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38811 to 38811. [2021-11-06 14:48:01,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38811 states, 38795 states have (on average 1.4767109163552004) internal successors, (57289), 38795 states have internal predecessors, (57289), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-06 14:48:01,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38811 states to 38811 states and 57307 transitions. [2021-11-06 14:48:01,542 INFO L78 Accepts]: Start accepts. Automaton has 38811 states and 57307 transitions. Word has length 44 [2021-11-06 14:48:01,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:48:01,544 INFO L470 AbstractCegarLoop]: Abstraction has 38811 states and 57307 transitions. [2021-11-06 14:48:01,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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 14:48:01,546 INFO L276 IsEmpty]: Start isEmpty. Operand 38811 states and 57307 transitions. [2021-11-06 14:48:01,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-06 14:48:01,559 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:48:01,559 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:48:01,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 14:48:01,560 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:48:01,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:48:01,560 INFO L85 PathProgramCache]: Analyzing trace with hash -183017348, now seen corresponding path program 1 times [2021-11-06 14:48:01,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:48:01,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203508582] [2021-11-06 14:48:01,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:48:01,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:48:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:48:01,968 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-06 14:48:01,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:48:01,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203508582] [2021-11-06 14:48:01,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203508582] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:48:01,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:48:01,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 14:48:01,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168734065] [2021-11-06 14:48:01,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 14:48:01,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:48:01,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 14:48:01,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 14:48:01,973 INFO L87 Difference]: Start difference. First operand 38811 states and 57307 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 14:48:03,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:48:03,864 INFO L93 Difference]: Finished difference Result 116287 states and 171774 transitions. [2021-11-06 14:48:03,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 14:48:03,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 70 [2021-11-06 14:48:03,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:48:04,063 INFO L225 Difference]: With dead ends: 116287 [2021-11-06 14:48:04,063 INFO L226 Difference]: Without dead ends: 77543 [2021-11-06 14:48:04,144 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 14:48:04,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77543 states. [2021-11-06 14:48:05,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77543 to 77423. [2021-11-06 14:48:05,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77423 states, 77392 states have (on average 1.47724571015092) internal successors, (114327), 77392 states have internal predecessors, (114327), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (27), 18 states have call predecessors, (27), 18 states have call successors, (27) [2021-11-06 14:48:06,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77423 states to 77423 states and 114372 transitions. [2021-11-06 14:48:06,204 INFO L78 Accepts]: Start accepts. Automaton has 77423 states and 114372 transitions. Word has length 70 [2021-11-06 14:48:06,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:48:06,206 INFO L470 AbstractCegarLoop]: Abstraction has 77423 states and 114372 transitions. [2021-11-06 14:48:06,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 14:48:06,206 INFO L276 IsEmpty]: Start isEmpty. Operand 77423 states and 114372 transitions. [2021-11-06 14:48:06,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-06 14:48:06,265 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:48:06,265 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:48:06,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 14:48:06,266 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:48:06,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:48:06,266 INFO L85 PathProgramCache]: Analyzing trace with hash -975067269, now seen corresponding path program 1 times [2021-11-06 14:48:06,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:48:06,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330493243] [2021-11-06 14:48:06,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:48:06,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:48:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:48:06,556 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-06 14:48:06,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:48:06,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330493243] [2021-11-06 14:48:06,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330493243] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:48:06,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:48:06,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:48:06,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423345453] [2021-11-06 14:48:06,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:48:06,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:48:06,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:48:06,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:48:06,558 INFO L87 Difference]: Start difference. First operand 77423 states and 114372 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 14:48:08,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:48:08,382 INFO L93 Difference]: Finished difference Result 139633 states and 205119 transitions. [2021-11-06 14:48:08,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:48:08,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 110 [2021-11-06 14:48:08,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:48:08,511 INFO L225 Difference]: With dead ends: 139633 [2021-11-06 14:48:08,513 INFO L226 Difference]: Without dead ends: 62282 [2021-11-06 14:48:08,595 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 14:48:08,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62282 states. [2021-11-06 14:48:09,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62282 to 62171. [2021-11-06 14:48:09,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62171 states, 62120 states have (on average 1.4589182227945912) internal successors, (90628), 62120 states have internal predecessors, (90628), 30 states have call successors, (30), 20 states have call predecessors, (30), 20 states have return successors, (45), 30 states have call predecessors, (45), 30 states have call successors, (45) [2021-11-06 14:48:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62171 states to 62171 states and 90703 transitions. [2021-11-06 14:48:10,270 INFO L78 Accepts]: Start accepts. Automaton has 62171 states and 90703 transitions. Word has length 110 [2021-11-06 14:48:10,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:48:10,270 INFO L470 AbstractCegarLoop]: Abstraction has 62171 states and 90703 transitions. [2021-11-06 14:48:10,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 14:48:10,271 INFO L276 IsEmpty]: Start isEmpty. Operand 62171 states and 90703 transitions. [2021-11-06 14:48:10,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-06 14:48:10,306 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:48:10,307 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:48:10,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 14:48:10,307 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:48:10,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:48:10,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1213888867, now seen corresponding path program 2 times [2021-11-06 14:48:10,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:48:10,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206760463] [2021-11-06 14:48:10,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:48:10,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:48:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:48:10,622 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:48:10,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:48:10,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206760463] [2021-11-06 14:48:10,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206760463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:48:10,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:48:10,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:48:10,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038754007] [2021-11-06 14:48:10,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:48:10,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:48:10,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:48:10,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:48:10,624 INFO L87 Difference]: Start difference. First operand 62171 states and 90703 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 14:48:14,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:48:14,360 INFO L93 Difference]: Finished difference Result 128125 states and 186738 transitions. [2021-11-06 14:48:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:48:14,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 110 [2021-11-06 14:48:14,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:48:14,646 INFO L225 Difference]: With dead ends: 128125 [2021-11-06 14:48:14,647 INFO L226 Difference]: Without dead ends: 69518 [2021-11-06 14:48:14,713 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 14:48:14,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69518 states. [2021-11-06 14:48:16,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69518 to 69407. [2021-11-06 14:48:16,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69407 states, 69336 states have (on average 1.4494202146071304) internal successors, (100497), 69336 states have internal predecessors, (100497), 42 states have call successors, (42), 28 states have call predecessors, (42), 28 states have return successors, (63), 42 states have call predecessors, (63), 42 states have call successors, (63) [2021-11-06 14:48:16,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69407 states to 69407 states and 100602 transitions. [2021-11-06 14:48:16,444 INFO L78 Accepts]: Start accepts. Automaton has 69407 states and 100602 transitions. Word has length 110 [2021-11-06 14:48:16,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:48:16,444 INFO L470 AbstractCegarLoop]: Abstraction has 69407 states and 100602 transitions. [2021-11-06 14:48:16,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 14:48:16,445 INFO L276 IsEmpty]: Start isEmpty. Operand 69407 states and 100602 transitions. [2021-11-06 14:48:16,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-06 14:48:16,471 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:48:16,475 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:48:16,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 14:48:16,475 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:48:16,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:48:16,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1397297359, now seen corresponding path program 1 times [2021-11-06 14:48:16,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:48:16,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205408014] [2021-11-06 14:48:16,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:48:16,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:48:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:48:16,787 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-06 14:48:16,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:48:16,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205408014] [2021-11-06 14:48:16,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205408014] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:48:16,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:48:16,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:48:16,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194370051] [2021-11-06 14:48:16,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:48:16,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:48:16,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:48:16,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:48:16,790 INFO L87 Difference]: Start difference. First operand 69407 states and 100602 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 14:48:19,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:48:19,923 INFO L93 Difference]: Finished difference Result 153459 states and 224194 transitions. [2021-11-06 14:48:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:48:19,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 110 [2021-11-06 14:48:19,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:48:20,249 INFO L225 Difference]: With dead ends: 153459 [2021-11-06 14:48:20,250 INFO L226 Difference]: Without dead ends: 120494 [2021-11-06 14:48:20,320 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 14:48:20,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120494 states.