./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.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 e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 13:47:35,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 13:47:35,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 13:47:35,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 13:47:35,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 13:47:35,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 13:47:35,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 13:47:35,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 13:47:35,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 13:47:35,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 13:47:35,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 13:47:35,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 13:47:35,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 13:47:35,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 13:47:35,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 13:47:35,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 13:47:35,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 13:47:35,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 13:47:35,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 13:47:35,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 13:47:35,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 13:47:35,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 13:47:35,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 13:47:35,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 13:47:35,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 13:47:35,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 13:47:35,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 13:47:35,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 13:47:35,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 13:47:35,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 13:47:35,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 13:47:35,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 13:47:35,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 13:47:35,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 13:47:35,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 13:47:35,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 13:47:35,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 13:47:35,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 13:47:35,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 13:47:35,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 13:47:35,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 13:47:35,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 13:47:35,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 13:47:35,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 13:47:35,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 13:47:35,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 13:47:35,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 13:47:35,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 13:47:35,147 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 13:47:35,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 13:47:35,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 13:47:35,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 13:47:35,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 13:47:35,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 13:47:35,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 13:47:35,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 13:47:35,148 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 13:47:35,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 13:47:35,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 13:47:35,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 13:47:35,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 13:47:35,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:47:35,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 13:47:35,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 13:47:35,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 13:47:35,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 13:47:35,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 13:47:35,150 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 13:47:35,150 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 13:47:35,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 13:47:35,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 13:47:35,151 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 [2021-11-07 13:47:35,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 13:47:35,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 13:47:35,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 13:47:35,370 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 13:47:35,371 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 13:47:35,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2021-11-07 13:47:35,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17664d6c3/c1b17c749cb24704b241813fab9f17fb/FLAG5d31241bd [2021-11-07 13:47:35,939 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 13:47:35,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2021-11-07 13:47:35,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17664d6c3/c1b17c749cb24704b241813fab9f17fb/FLAG5d31241bd [2021-11-07 13:47:36,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17664d6c3/c1b17c749cb24704b241813fab9f17fb [2021-11-07 13:47:36,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 13:47:36,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 13:47:36,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 13:47:36,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 13:47:36,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 13:47:36,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:47:36" (1/1) ... [2021-11-07 13:47:36,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e3cac7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:47:36, skipping insertion in model container [2021-11-07 13:47:36,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:47:36" (1/1) ... [2021-11-07 13:47:36,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 13:47:36,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 13:47:36,790 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-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2021-11-07 13:47:37,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:47:37,233 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 13:47:37,302 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-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2021-11-07 13:47:37,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:47:37,460 INFO L208 MainTranslator]: Completed translation [2021-11-07 13:47:37,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:47:37 WrapperNode [2021-11-07 13:47:37,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 13:47:37,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 13:47:37,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 13:47:37,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 13:47:37,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:47:37" (1/1) ... [2021-11-07 13:47:37,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:47:37" (1/1) ... [2021-11-07 13:47:38,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 13:47:38,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 13:47:38,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 13:47:38,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 13:47:38,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:47:37" (1/1) ... [2021-11-07 13:47:38,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:47:37" (1/1) ... [2021-11-07 13:47:38,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:47:37" (1/1) ... [2021-11-07 13:47:38,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:47:37" (1/1) ... [2021-11-07 13:47:39,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:47:37" (1/1) ... [2021-11-07 13:47:40,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:47:37" (1/1) ... [2021-11-07 13:47:40,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:47:37" (1/1) ... [2021-11-07 13:47:40,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 13:47:40,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 13:47:40,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 13:47:40,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 13:47:40,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:47:37" (1/1) ... [2021-11-07 13:47:40,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:47:40,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:47:40,488 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) [2021-11-07 13:47:40,509 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 [2021-11-07 13:47:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 13:47:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 13:47:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2021-11-07 13:47:40,523 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2021-11-07 13:47:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 13:47:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 13:47:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 13:47:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 13:47:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 13:47:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 13:47:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 13:47:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2021-11-07 13:47:40,524 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2021-11-07 13:47:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 13:47:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2021-11-07 13:47:40,524 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2021-11-07 13:47:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 13:47:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-07 13:47:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2021-11-07 13:47:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 13:47:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 13:47:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2021-11-07 13:47:40,525 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2021-11-07 13:47:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2021-11-07 13:47:40,525 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2021-11-07 13:47:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 13:47:40,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 13:47:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 13:47:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 13:47:40,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 13:48:25,645 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 13:48:25,646 INFO L299 CfgBuilder]: Removed 14253 assume(true) statements. [2021-11-07 13:48:25,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:48:25 BoogieIcfgContainer [2021-11-07 13:48:25,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 13:48:25,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 13:48:25,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 13:48:25,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 13:48:25,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:47:36" (1/3) ... [2021-11-07 13:48:25,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41eb85f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:48:25, skipping insertion in model container [2021-11-07 13:48:25,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:47:37" (2/3) ... [2021-11-07 13:48:25,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41eb85f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:48:25, skipping insertion in model container [2021-11-07 13:48:25,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:48:25" (3/3) ... [2021-11-07 13:48:25,662 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2021-11-07 13:48:25,665 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 13:48:25,665 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-07 13:48:25,728 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 13:48:25,733 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 [2021-11-07 13:48:25,733 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-07 13:48:25,845 INFO L276 IsEmpty]: Start isEmpty. Operand has 11954 states, 11918 states have (on average 1.4186105051183084) internal successors, (16907), 11937 states have internal predecessors, (16907), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-07 13:48:25,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 13:48:25,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:48:25,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:48:25,853 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-07 13:48:25,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:48:25,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1301554369, now seen corresponding path program 1 times [2021-11-07 13:48:25,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:48:25,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841294793] [2021-11-07 13:48:25,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:48:25,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:48:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:48:26,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:48:26,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:48:26,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841294793] [2021-11-07 13:48:26,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841294793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:48:26,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:48:26,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:48:26,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637087406] [2021-11-07 13:48:26,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:48:26,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:48:26,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:48:26,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:48:26,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:48:26,437 INFO L87 Difference]: Start difference. First operand has 11954 states, 11918 states have (on average 1.4186105051183084) internal successors, (16907), 11937 states have internal predecessors, (16907), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:48:28,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 13:48:29,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:48:29,223 INFO L93 Difference]: Finished difference Result 31641 states and 44017 transitions. [2021-11-07 13:48:29,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:48:29,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-07 13:48:29,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:48:29,304 INFO L225 Difference]: With dead ends: 31641 [2021-11-07 13:48:29,304 INFO L226 Difference]: Without dead ends: 19678 [2021-11-07 13:48:29,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:48:29,368 INFO L933 BasicCegarLoop]: 13461 mSDtfsCounter, 13331 mSDsluCounter, 13350 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2094.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13331 SdHoareTripleChecker+Valid, 26811 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 62.46ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2228.34ms IncrementalHoareTripleChecker+Time [2021-11-07 13:48:29,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13331 Valid, 26811 Invalid, 15 Unknown, 0 Unchecked, 62.46ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2228.34ms Time] [2021-11-07 13:48:29,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19678 states. [2021-11-07 13:48:29,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19678 to 19678. [2021-11-07 13:48:29,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19678 states, 19627 states have (on average 1.3569572527640494) internal successors, (26633), 19645 states have internal predecessors, (26633), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 13:48:29,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19678 states to 19678 states and 26673 transitions. [2021-11-07 13:48:29,848 INFO L78 Accepts]: Start accepts. Automaton has 19678 states and 26673 transitions. Word has length 24 [2021-11-07 13:48:29,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:48:29,849 INFO L470 AbstractCegarLoop]: Abstraction has 19678 states and 26673 transitions. [2021-11-07 13:48:29,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:48:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 19678 states and 26673 transitions. [2021-11-07 13:48:29,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-07 13:48:29,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:48:29,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:48:29,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 13:48:29,857 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-07 13:48:29,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:48:29,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1536576598, now seen corresponding path program 1 times [2021-11-07 13:48:29,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:48:29,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759832200] [2021-11-07 13:48:29,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:48:29,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:48:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:48:30,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:48:30,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:48:30,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759832200] [2021-11-07 13:48:30,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759832200] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:48:30,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:48:30,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:48:30,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535340321] [2021-11-07 13:48:30,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:48:30,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:48:30,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:48:30,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:48:30,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:48:30,012 INFO L87 Difference]: Start difference. First operand 19678 states and 26673 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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) [2021-11-07 13:48:30,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:48:30,482 INFO L93 Difference]: Finished difference Result 39256 states and 53239 transitions. [2021-11-07 13:48:30,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:48:30,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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 27 [2021-11-07 13:48:30,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:48:30,626 INFO L225 Difference]: With dead ends: 39256 [2021-11-07 13:48:30,627 INFO L226 Difference]: Without dead ends: 39224 [2021-11-07 13:48:30,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.91ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:48:30,650 INFO L933 BasicCegarLoop]: 13427 mSDtfsCounter, 13386 mSDsluCounter, 13311 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13386 SdHoareTripleChecker+Valid, 26738 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.09ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.43ms IncrementalHoareTripleChecker+Time [2021-11-07 13:48:30,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13386 Valid, 26738 Invalid, 32 Unknown, 0 Unchecked, 35.09ms Time], IncrementalHoareTripleChecker [15 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 49.43ms Time] [2021-11-07 13:48:30,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39224 states. [2021-11-07 13:48:31,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39224 to 39220. [2021-11-07 13:48:31,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39220 states, 39139 states have (on average 1.357290681928511) internal successors, (53123), 39155 states have internal predecessors, (53123), 40 states have call successors, (40), 24 states have call predecessors, (40), 24 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-07 13:48:31,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39220 states to 39220 states and 53203 transitions. [2021-11-07 13:48:31,393 INFO L78 Accepts]: Start accepts. Automaton has 39220 states and 53203 transitions. Word has length 27 [2021-11-07 13:48:31,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:48:31,394 INFO L470 AbstractCegarLoop]: Abstraction has 39220 states and 53203 transitions. [2021-11-07 13:48:31,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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) [2021-11-07 13:48:31,394 INFO L276 IsEmpty]: Start isEmpty. Operand 39220 states and 53203 transitions. [2021-11-07 13:48:31,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 13:48:31,395 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:48:31,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:48:31,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 13:48:31,396 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-07 13:48:31,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:48:31,396 INFO L85 PathProgramCache]: Analyzing trace with hash 389265743, now seen corresponding path program 1 times [2021-11-07 13:48:31,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:48:31,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947926344] [2021-11-07 13:48:31,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:48:31,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:48:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:48:31,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:48:31,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:48:31,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947926344] [2021-11-07 13:48:31,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947926344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:48:31,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:48:31,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:48:31,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126209507] [2021-11-07 13:48:31,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:48:31,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:48:31,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:48:31,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:48:31,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:48:31,568 INFO L87 Difference]: Start difference. First operand 39220 states and 53203 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:48:32,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:48:32,535 INFO L93 Difference]: Finished difference Result 117512 states and 159453 transitions. [2021-11-07 13:48:32,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:48:32,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-07 13:48:32,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:48:32,780 INFO L225 Difference]: With dead ends: 117512 [2021-11-07 13:48:32,780 INFO L226 Difference]: Without dead ends: 78349 [2021-11-07 13:48:32,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.84ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:48:32,887 INFO L933 BasicCegarLoop]: 13431 mSDtfsCounter, 13389 mSDsluCounter, 13326 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13389 SdHoareTripleChecker+Valid, 26757 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.37ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.38ms IncrementalHoareTripleChecker+Time [2021-11-07 13:48:32,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13389 Valid, 26757 Invalid, 23 Unknown, 0 Unchecked, 32.37ms Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 25.38ms Time] [2021-11-07 13:48:32,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78349 states. [2021-11-07 13:48:34,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78349 to 78329. [2021-11-07 13:48:34,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78329 states, 78184 states have (on average 1.357528394556431) internal successors, (106137), 78200 states have internal predecessors, (106137), 80 states have call successors, (80), 48 states have call predecessors, (80), 48 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-07 13:48:34,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78329 states to 78329 states and 106297 transitions. [2021-11-07 13:48:34,606 INFO L78 Accepts]: Start accepts. Automaton has 78329 states and 106297 transitions. Word has length 28 [2021-11-07 13:48:34,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:48:34,606 INFO L470 AbstractCegarLoop]: Abstraction has 78329 states and 106297 transitions. [2021-11-07 13:48:34,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:48:34,607 INFO L276 IsEmpty]: Start isEmpty. Operand 78329 states and 106297 transitions. [2021-11-07 13:48:34,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 13:48:34,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:48:34,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:48:34,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 13:48:34,609 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-07 13:48:34,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:48:34,609 INFO L85 PathProgramCache]: Analyzing trace with hash -513397760, now seen corresponding path program 1 times [2021-11-07 13:48:34,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:48:34,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467477928] [2021-11-07 13:48:34,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:48:34,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:48:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:48:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:48:34,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:48:34,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467477928] [2021-11-07 13:48:34,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467477928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:48:34,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:48:34,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:48:34,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58079306] [2021-11-07 13:48:34,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:48:34,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:48:34,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:48:34,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:48:34,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:48:34,777 INFO L87 Difference]: Start difference. First operand 78329 states and 106297 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 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) [2021-11-07 13:48:37,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:48:37,242 INFO L93 Difference]: Finished difference Result 234856 states and 318752 transitions. [2021-11-07 13:48:37,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:48:37,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 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 [2021-11-07 13:48:37,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:48:37,861 INFO L225 Difference]: With dead ends: 234856 [2021-11-07 13:48:37,862 INFO L226 Difference]: Without dead ends: 156582 [2021-11-07 13:48:37,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.07ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:48:37,971 INFO L933 BasicCegarLoop]: 13432 mSDtfsCounter, 13382 mSDsluCounter, 13345 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13382 SdHoareTripleChecker+Valid, 26777 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.75ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.10ms IncrementalHoareTripleChecker+Time [2021-11-07 13:48:37,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13382 Valid, 26777 Invalid, 18 Unknown, 0 Unchecked, 26.75ms Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 23.10ms Time] [2021-11-07 13:48:38,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156582 states. [2021-11-07 13:48:40,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156582 to 156545. [2021-11-07 13:48:40,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156545 states, 156272 states have (on average 1.3576456434933961) internal successors, (212162), 156288 states have internal predecessors, (212162), 160 states have call successors, (160), 96 states have call predecessors, (160), 96 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2021-11-07 13:48:41,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156545 states to 156545 states and 212482 transitions. [2021-11-07 13:48:41,427 INFO L78 Accepts]: Start accepts. Automaton has 156545 states and 212482 transitions. Word has length 37 [2021-11-07 13:48:41,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:48:41,428 INFO L470 AbstractCegarLoop]: Abstraction has 156545 states and 212482 transitions. [2021-11-07 13:48:41,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 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) [2021-11-07 13:48:41,428 INFO L276 IsEmpty]: Start isEmpty. Operand 156545 states and 212482 transitions. [2021-11-07 13:48:41,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 13:48:41,430 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:48:41,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:48:41,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 13:48:41,430 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-07 13:48:41,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:48:41,431 INFO L85 PathProgramCache]: Analyzing trace with hash 666285678, now seen corresponding path program 1 times [2021-11-07 13:48:41,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:48:41,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752021693] [2021-11-07 13:48:41,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:48:41,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:48:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:48:42,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:48:42,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:48:42,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752021693] [2021-11-07 13:48:42,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752021693] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:48:42,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:48:42,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 13:48:42,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570956921] [2021-11-07 13:48:42,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:48:42,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 13:48:42,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:48:42,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 13:48:42,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-07 13:48:42,141 INFO L87 Difference]: Start difference. First operand 156545 states and 212482 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 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) [2021-11-07 13:48:50,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:48:50,250 INFO L93 Difference]: Finished difference Result 544113 states and 737675 transitions. [2021-11-07 13:48:50,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 13:48:50,257 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 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 39 [2021-11-07 13:48:50,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:48:51,362 INFO L225 Difference]: With dead ends: 544113 [2021-11-07 13:48:51,363 INFO L226 Difference]: Without dead ends: 387625 [2021-11-07 13:48:51,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 236.30ms TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2021-11-07 13:48:51,637 INFO L933 BasicCegarLoop]: 18771 mSDtfsCounter, 39479 mSDsluCounter, 113146 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 725.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 39481 SdHoareTripleChecker+Valid, 131917 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 121.51ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 916.25ms IncrementalHoareTripleChecker+Time [2021-11-07 13:48:51,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39481 Valid, 131917 Invalid, 629 Unknown, 0 Unchecked, 121.51ms Time], IncrementalHoareTripleChecker [31 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 916.25ms Time] [2021-11-07 13:48:52,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387625 states.