./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.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 6150b3a515973ce4119efed812e463608b94129eea9915abf4784f091ce6f187 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 05:23:48,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 05:23:48,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 05:23:48,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 05:23:48,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 05:23:48,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 05:23:48,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 05:23:48,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 05:23:48,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 05:23:48,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 05:23:48,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 05:23:48,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 05:23:48,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 05:23:48,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 05:23:48,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 05:23:48,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 05:23:49,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 05:23:49,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 05:23:49,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 05:23:49,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 05:23:49,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 05:23:49,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 05:23:49,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 05:23:49,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 05:23:49,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 05:23:49,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 05:23:49,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 05:23:49,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 05:23:49,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 05:23:49,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 05:23:49,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 05:23:49,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 05:23:49,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 05:23:49,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 05:23:49,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 05:23:49,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 05:23:49,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 05:23:49,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 05:23:49,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 05:23:49,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 05:23:49,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 05:23:49,023 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 05:23:49,047 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 05:23:49,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 05:23:49,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 05:23:49,048 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 05:23:49,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 05:23:49,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 05:23:49,050 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 05:23:49,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 05:23:49,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 05:23:49,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 05:23:49,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 05:23:49,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 05:23:49,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 05:23:49,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 05:23:49,051 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 05:23:49,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 05:23:49,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 05:23:49,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 05:23:49,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 05:23:49,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 05:23:49,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 05:23:49,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 05:23:49,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 05:23:49,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 05:23:49,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 05:23:49,053 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 05:23:49,053 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 05:23:49,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 05:23:49,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 05:23:49,055 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6150b3a515973ce4119efed812e463608b94129eea9915abf4784f091ce6f187 [2021-11-04 05:23:49,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 05:23:49,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 05:23:49,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 05:23:49,279 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 05:23:49,280 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 05:23:49,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2021-11-04 05:23:49,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41cbef7aa/1ba39e304f7a49aaabe091d0b1e51300/FLAGaba09e34e [2021-11-04 05:23:49,889 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 05:23:49,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2021-11-04 05:23:49,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41cbef7aa/1ba39e304f7a49aaabe091d0b1e51300/FLAGaba09e34e [2021-11-04 05:23:50,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41cbef7aa/1ba39e304f7a49aaabe091d0b1e51300 [2021-11-04 05:23:50,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 05:23:50,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 05:23:50,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 05:23:50,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 05:23:50,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 05:23:50,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 05:23:50" (1/1) ... [2021-11-04 05:23:50,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@580d9522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:50, skipping insertion in model container [2021-11-04 05:23:50,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 05:23:50" (1/1) ... [2021-11-04 05:23:50,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 05:23:50,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 05:23:51,522 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-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2021-11-04 05:23:51,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 05:23:51,571 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 05:23:51,835 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-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2021-11-04 05:23:51,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 05:23:51,909 INFO L208 MainTranslator]: Completed translation [2021-11-04 05:23:51,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:51 WrapperNode [2021-11-04 05:23:51,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 05:23:51,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 05:23:51,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 05:23:51,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 05:23:51,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:51" (1/1) ... [2021-11-04 05:23:51,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:51" (1/1) ... [2021-11-04 05:23:53,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 05:23:53,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 05:23:53,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 05:23:53,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 05:23:53,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:51" (1/1) ... [2021-11-04 05:23:53,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:51" (1/1) ... [2021-11-04 05:23:53,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:51" (1/1) ... [2021-11-04 05:23:53,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:51" (1/1) ... [2021-11-04 05:23:54,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:51" (1/1) ... [2021-11-04 05:23:54,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:51" (1/1) ... [2021-11-04 05:23:54,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:51" (1/1) ... [2021-11-04 05:23:55,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 05:23:55,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 05:23:55,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 05:23:55,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 05:23:55,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:51" (1/1) ... [2021-11-04 05:23:55,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 05:23:55,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 05:23:55,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-04 05:23:55,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-04 05:23:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 05:23:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 05:23:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2021-11-04 05:23:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2021-11-04 05:23:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-11-04 05:23:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-11-04 05:23:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2021-11-04 05:23:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2021-11-04 05:23:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-04 05:23:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-04 05:23:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2021-11-04 05:23:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2021-11-04 05:23:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2021-11-04 05:23:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2021-11-04 05:23:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 05:23:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2021-11-04 05:23:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2021-11-04 05:23:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 05:23:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2021-11-04 05:23:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2021-11-04 05:23:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2021-11-04 05:23:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2021-11-04 05:23:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2021-11-04 05:23:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2021-11-04 05:23:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 05:23:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 05:23:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2021-11-04 05:23:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2021-11-04 05:23:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2021-11-04 05:23:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2021-11-04 05:23:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 05:23:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2021-11-04 05:23:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2021-11-04 05:23:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 05:23:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2021-11-04 05:23:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2021-11-04 05:23:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 05:23:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2021-11-04 05:23:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2021-11-04 05:23:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 05:23:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_32 [2021-11-04 05:23:55,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_32 [2021-11-04 05:23:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 05:23:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 05:23:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 05:23:55,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 05:23:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2021-11-04 05:23:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2021-11-04 05:23:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2021-11-04 05:23:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2021-11-04 05:23:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2021-11-04 05:23:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2021-11-04 05:23:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-04 05:23:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 05:23:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-04 05:23:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 05:23:55,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 05:24:00,354 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 05:24:00,355 INFO L299 CfgBuilder]: Removed 12774 assume(true) statements. [2021-11-04 05:24:00,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 05:24:00 BoogieIcfgContainer [2021-11-04 05:24:00,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 05:24:00,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 05:24:00,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 05:24:00,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 05:24:00,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 05:23:50" (1/3) ... [2021-11-04 05:24:00,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fef8a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 05:24:00, skipping insertion in model container [2021-11-04 05:24:00,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:23:51" (2/3) ... [2021-11-04 05:24:00,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fef8a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 05:24:00, skipping insertion in model container [2021-11-04 05:24:00,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 05:24:00" (3/3) ... [2021-11-04 05:24:00,371 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2021-11-04 05:24:00,375 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 05:24:00,375 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-04 05:24:00,434 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 05:24:00,439 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-04 05:24:00,439 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-04 05:24:00,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 9787 states, 9721 states have (on average 1.4642526489044336) internal successors, (14234), 9731 states have internal predecessors, (14234), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-04 05:24:00,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-04 05:24:00,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:24:00,554 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:24:00,555 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:24:00,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:24:00,559 INFO L85 PathProgramCache]: Analyzing trace with hash -693416129, now seen corresponding path program 1 times [2021-11-04 05:24:00,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:24:00,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076332073] [2021-11-04 05:24:00,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:24:00,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:24:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:24:01,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:24:01,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:24:01,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076332073] [2021-11-04 05:24:01,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076332073] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:24:01,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:24:01,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:24:01,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562955722] [2021-11-04 05:24:01,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:24:01,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-04 05:24:01,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:24:01,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-04 05:24:01,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 05:24:01,172 INFO L87 Difference]: Start difference. First operand has 9787 states, 9721 states have (on average 1.4642526489044336) internal successors, (14234), 9731 states have internal predecessors, (14234), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:24:16,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:24:16,330 INFO L93 Difference]: Finished difference Result 19570 states and 28655 transitions. [2021-11-04 05:24:16,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-04 05:24:16,332 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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 47 [2021-11-04 05:24:16,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:24:16,376 INFO L225 Difference]: With dead ends: 19570 [2021-11-04 05:24:16,376 INFO L226 Difference]: Without dead ends: 9774 [2021-11-04 05:24:16,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 05:24:16,403 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11956.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 14202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14648.97ms IncrementalHoareTripleChecker+Time [2021-11-04 05:24:16,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 14202 Unknown, 0 Unchecked, 17.16ms Time], IncrementalHoareTripleChecker [0 Valid, 14202 Invalid, 0 Unknown, 0 Unchecked, 14648.97ms Time] [2021-11-04 05:24:16,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9774 states. [2021-11-04 05:24:16,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9774 to 9774. [2021-11-04 05:24:16,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9774 states, 9709 states have (on average 1.4614275414563807) internal successors, (14189), 9718 states have internal predecessors, (14189), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-04 05:24:16,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9774 states to 9774 states and 14269 transitions. [2021-11-04 05:24:16,741 INFO L78 Accepts]: Start accepts. Automaton has 9774 states and 14269 transitions. Word has length 47 [2021-11-04 05:24:16,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:24:16,742 INFO L470 AbstractCegarLoop]: Abstraction has 9774 states and 14269 transitions. [2021-11-04 05:24:16,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:24:16,742 INFO L276 IsEmpty]: Start isEmpty. Operand 9774 states and 14269 transitions. [2021-11-04 05:24:16,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-04 05:24:16,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:24:16,750 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:24:16,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 05:24:16,752 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:24:16,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:24:16,754 INFO L85 PathProgramCache]: Analyzing trace with hash 60748855, now seen corresponding path program 1 times [2021-11-04 05:24:16,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:24:16,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794559577] [2021-11-04 05:24:16,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:24:16,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:24:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:24:16,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:24:16,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:24:16,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794559577] [2021-11-04 05:24:16,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794559577] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:24:16,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:24:16,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:24:16,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439745936] [2021-11-04 05:24:16,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:24:16,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:24:16,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:24:16,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:24:16,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:24:16,958 INFO L87 Difference]: Start difference. First operand 9774 states and 14269 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:24:48,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:24:48,430 INFO L93 Difference]: Finished difference Result 19530 states and 28521 transitions. [2021-11-04 05:24:48,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:24:48,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2021-11-04 05:24:48,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:24:48,491 INFO L225 Difference]: With dead ends: 19530 [2021-11-04 05:24:48,492 INFO L226 Difference]: Without dead ends: 9776 [2021-11-04 05:24:48,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:24:48,517 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 14263 mSDsCounter, 0 mSdLazyCounter, 28376 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25187.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 28378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 68.33ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30795.04ms IncrementalHoareTripleChecker+Time [2021-11-04 05:24:48,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 160 Invalid, 28378 Unknown, 0 Unchecked, 68.33ms Time], IncrementalHoareTripleChecker [2 Valid, 28376 Invalid, 0 Unknown, 0 Unchecked, 30795.04ms Time] [2021-11-04 05:24:48,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9776 states. [2021-11-04 05:24:48,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9776 to 9776. [2021-11-04 05:24:48,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9776 states, 9711 states have (on average 1.4613325095252807) internal successors, (14191), 9720 states have internal predecessors, (14191), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-04 05:24:48,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9776 states to 9776 states and 14271 transitions. [2021-11-04 05:24:48,764 INFO L78 Accepts]: Start accepts. Automaton has 9776 states and 14271 transitions. Word has length 47 [2021-11-04 05:24:48,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:24:48,764 INFO L470 AbstractCegarLoop]: Abstraction has 9776 states and 14271 transitions. [2021-11-04 05:24:48,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:24:48,764 INFO L276 IsEmpty]: Start isEmpty. Operand 9776 states and 14271 transitions. [2021-11-04 05:24:48,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-04 05:24:48,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:24:48,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:24:48,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 05:24:48,767 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:24:48,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:24:48,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1684840011, now seen corresponding path program 1 times [2021-11-04 05:24:48,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:24:48,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244956162] [2021-11-04 05:24:48,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:24:48,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:24:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:24:48,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:24:48,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:24:48,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244956162] [2021-11-04 05:24:48,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244956162] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 05:24:48,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086737019] [2021-11-04 05:24:48,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:24:48,975 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 05:24:48,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 05:24:48,977 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-04 05:24:48,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-04 05:24:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:24:49,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 1565 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-04 05:24:49,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 05:24:49,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:24:49,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-04 05:24:50,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:24:50,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086737019] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-04 05:24:50,004 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-04 05:24:50,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-11-04 05:24:50,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495054521] [2021-11-04 05:24:50,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-04 05:24:50,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-04 05:24:50,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:24:50,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-04 05:24:50,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-11-04 05:24:50,006 INFO L87 Difference]: Start difference. First operand 9776 states and 14271 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:25:30,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:25:30,438 INFO L93 Difference]: Finished difference Result 19537 states and 28532 transitions. [2021-11-04 05:25:30,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-04 05:25:30,439 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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 49 [2021-11-04 05:25:30,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:25:30,479 INFO L225 Difference]: With dead ends: 19537 [2021-11-04 05:25:30,479 INFO L226 Difference]: Without dead ends: 9782 [2021-11-04 05:25:30,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.42ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-11-04 05:25:30,503 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 14263 mSDsCounter, 0 mSdLazyCounter, 28386 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32037.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 28400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 62.93ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39690.88ms IncrementalHoareTripleChecker+Time [2021-11-04 05:25:30,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 160 Invalid, 28400 Unknown, 0 Unchecked, 62.93ms Time], IncrementalHoareTripleChecker [14 Valid, 28386 Invalid, 0 Unknown, 0 Unchecked, 39690.88ms Time] [2021-11-04 05:25:30,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9782 states. [2021-11-04 05:25:30,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9782 to 9782. [2021-11-04 05:25:30,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9782 states, 9717 states have (on average 1.461047648451168) internal successors, (14197), 9726 states have internal predecessors, (14197), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-04 05:25:30,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9782 states to 9782 states and 14277 transitions. [2021-11-04 05:25:30,720 INFO L78 Accepts]: Start accepts. Automaton has 9782 states and 14277 transitions. Word has length 49 [2021-11-04 05:25:30,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:25:30,721 INFO L470 AbstractCegarLoop]: Abstraction has 9782 states and 14277 transitions. [2021-11-04 05:25:30,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:25:30,721 INFO L276 IsEmpty]: Start isEmpty. Operand 9782 states and 14277 transitions. [2021-11-04 05:25:30,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-04 05:25:30,725 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:25:30,725 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:25:30,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-04 05:25:30,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 05:25:30,929 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:25:30,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:25:30,929 INFO L85 PathProgramCache]: Analyzing trace with hash -851676489, now seen corresponding path program 2 times [2021-11-04 05:25:30,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:25:30,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612819269] [2021-11-04 05:25:30,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:25:30,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:25:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:25:31,137 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-04 05:25:31,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:25:31,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612819269] [2021-11-04 05:25:31,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612819269] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:25:31,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:25:31,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:25:31,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264392103] [2021-11-04 05:25:31,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:25:31,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:25:31,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:25:31,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:25:31,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:25:31,141 INFO L87 Difference]: Start difference. First operand 9782 states and 14277 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:26:48,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:26:48,508 INFO L93 Difference]: Finished difference Result 29272 states and 42906 transitions. [2021-11-04 05:26:48,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:26:48,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 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 55 [2021-11-04 05:26:48,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:26:48,562 INFO L225 Difference]: With dead ends: 29272 [2021-11-04 05:26:48,563 INFO L226 Difference]: Without dead ends: 19526 [2021-11-04 05:26:48,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.90ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:26:48,584 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 13604 mSDsluCounter, 12945 mSDsCounter, 0 mSdLazyCounter, 27708 mSolverCounterSat, 1306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58389.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13604 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 29014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 76.42ms SdHoareTripleChecker+Time, 1306 IncrementalHoareTripleChecker+Valid, 27708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76237.87ms IncrementalHoareTripleChecker+Time [2021-11-04 05:26:48,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13604 Valid, 266 Invalid, 29014 Unknown, 0 Unchecked, 76.42ms Time], IncrementalHoareTripleChecker [1306 Valid, 27708 Invalid, 0 Unknown, 0 Unchecked, 76237.87ms Time] [2021-11-04 05:26:48,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19526 states. [2021-11-04 05:26:48,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19526 to 19514. [2021-11-04 05:26:48,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19514 states, 19389 states have (on average 1.4281293516942597) internal successors, (27690), 19403 states have internal predecessors, (27690), 80 states have call successors, (80), 40 states have call predecessors, (80), 40 states have return successors, (152), 74 states have call predecessors, (152), 80 states have call successors, (152) [2021-11-04 05:26:48,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19514 states to 19514 states and 27922 transitions. [2021-11-04 05:26:48,956 INFO L78 Accepts]: Start accepts. Automaton has 19514 states and 27922 transitions. Word has length 55 [2021-11-04 05:26:48,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:26:48,957 INFO L470 AbstractCegarLoop]: Abstraction has 19514 states and 27922 transitions. [2021-11-04 05:26:48,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:26:48,957 INFO L276 IsEmpty]: Start isEmpty. Operand 19514 states and 27922 transitions. [2021-11-04 05:26:48,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-04 05:26:48,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:26:48,960 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:26:48,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 05:26:48,961 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:26:48,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:26:48,967 INFO L85 PathProgramCache]: Analyzing trace with hash -632124013, now seen corresponding path program 1 times [2021-11-04 05:26:48,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:26:48,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406715842] [2021-11-04 05:26:48,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:26:48,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:26:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:26:49,127 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-04 05:26:49,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:26:49,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406715842] [2021-11-04 05:26:49,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406715842] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:26:49,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:26:49,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:26:49,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525063592] [2021-11-04 05:26:49,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:26:49,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:26:49,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:26:49,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:26:49,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:26:49,129 INFO L87 Difference]: Start difference. First operand 19514 states and 27922 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:28:50,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:28:50,385 INFO L93 Difference]: Finished difference Result 57816 states and 82841 transitions. [2021-11-04 05:28:50,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:28:50,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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 56 [2021-11-04 05:28:50,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:28:50,481 INFO L225 Difference]: With dead ends: 57816 [2021-11-04 05:28:50,481 INFO L226 Difference]: Without dead ends: 38338 [2021-11-04 05:28:50,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:28:50,530 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 13280 mSDsluCounter, 13256 mSDsCounter, 0 mSdLazyCounter, 28031 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83182.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13280 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 28682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 86.75ms SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 28031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119328.81ms IncrementalHoareTripleChecker+Time [2021-11-04 05:28:50,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13280 Valid, 240 Invalid, 28682 Unknown, 0 Unchecked, 86.75ms Time], IncrementalHoareTripleChecker [651 Valid, 28031 Invalid, 0 Unknown, 0 Unchecked, 119328.81ms Time] [2021-11-04 05:28:50,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38338 states. [2021-11-04 05:28:51,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38338 to 38327. [2021-11-04 05:28:51,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38327 states, 38082 states have (on average 1.4015807993277665) internal successors, (53375), 38106 states have internal predecessors, (53375), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-04 05:28:51,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38327 states to 38327 states and 53991 transitions. [2021-11-04 05:28:51,292 INFO L78 Accepts]: Start accepts. Automaton has 38327 states and 53991 transitions. Word has length 56 [2021-11-04 05:28:51,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:28:51,294 INFO L470 AbstractCegarLoop]: Abstraction has 38327 states and 53991 transitions. [2021-11-04 05:28:51,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:28:51,294 INFO L276 IsEmpty]: Start isEmpty. Operand 38327 states and 53991 transitions. [2021-11-04 05:28:51,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-04 05:28:51,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:28:51,297 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:28:51,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 05:28:51,297 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:28:51,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:28:51,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1879035457, now seen corresponding path program 1 times [2021-11-04 05:28:51,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:28:51,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22778567] [2021-11-04 05:28:51,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:28:51,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:28:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:28:51,396 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-04 05:28:51,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:28:51,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22778567] [2021-11-04 05:28:51,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22778567] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:28:51,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:28:51,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:28:51,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486809059] [2021-11-04 05:28:51,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:28:51,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:28:51,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:28:51,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:28:51,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:28:51,398 INFO L87 Difference]: Start difference. First operand 38327 states and 53991 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:31:17,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:31:17,095 INFO L93 Difference]: Finished difference Result 38332 states and 53995 transitions. [2021-11-04 05:31:17,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:31:17,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 57 [2021-11-04 05:31:17,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:31:17,215 INFO L225 Difference]: With dead ends: 38332 [2021-11-04 05:31:17,215 INFO L226 Difference]: Without dead ends: 38330 [2021-11-04 05:31:17,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:31:17,232 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 13277 mSDsluCounter, 13255 mSDsCounter, 0 mSdLazyCounter, 28025 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97161.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13277 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 28351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 80.61ms SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 28025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 144079.25ms IncrementalHoareTripleChecker+Time [2021-11-04 05:31:17,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13277 Valid, 240 Invalid, 28351 Unknown, 0 Unchecked, 80.61ms Time], IncrementalHoareTripleChecker [326 Valid, 28025 Invalid, 0 Unknown, 0 Unchecked, 144079.25ms Time] [2021-11-04 05:31:17,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38330 states. [2021-11-04 05:31:17,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38330 to 38328. [2021-11-04 05:31:17,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38328 states, 38083 states have (on average 1.40157025444424) internal successors, (53376), 38107 states have internal predecessors, (53376), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-04 05:31:17,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38328 states to 38328 states and 53992 transitions. [2021-11-04 05:31:17,931 INFO L78 Accepts]: Start accepts. Automaton has 38328 states and 53992 transitions. Word has length 57 [2021-11-04 05:31:17,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:31:17,932 INFO L470 AbstractCegarLoop]: Abstraction has 38328 states and 53992 transitions. [2021-11-04 05:31:17,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:31:17,932 INFO L276 IsEmpty]: Start isEmpty. Operand 38328 states and 53992 transitions. [2021-11-04 05:31:17,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-04 05:31:17,934 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:31:17,935 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:31:17,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 05:31:17,935 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:31:17,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:31:17,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1879399587, now seen corresponding path program 1 times [2021-11-04 05:31:17,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:31:17,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129053073] [2021-11-04 05:31:17,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:31:17,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:31:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:31:18,023 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-04 05:31:18,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:31:18,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129053073] [2021-11-04 05:31:18,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129053073] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:31:18,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:31:18,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:31:18,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259231458] [2021-11-04 05:31:18,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:31:18,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:31:18,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:31:18,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:31:18,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:31:18,025 INFO L87 Difference]: Start difference. First operand 38328 states and 53992 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:32:58,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:32:58,540 INFO L93 Difference]: Finished difference Result 38328 states and 53992 transitions. [2021-11-04 05:32:58,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:32:58,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 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 58 [2021-11-04 05:32:58,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:32:58,627 INFO L225 Difference]: With dead ends: 38328 [2021-11-04 05:32:58,627 INFO L226 Difference]: Without dead ends: 38326 [2021-11-04 05:32:58,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.45ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:32:58,651 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 14217 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64654.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14217 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 14187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 99304.58ms IncrementalHoareTripleChecker+Time [2021-11-04 05:32:58,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14217 Valid, 80 Invalid, 14187 Unknown, 0 Unchecked, 46.56ms Time], IncrementalHoareTripleChecker [0 Valid, 14187 Invalid, 0 Unknown, 0 Unchecked, 99304.58ms Time] [2021-11-04 05:32:58,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38326 states. [2021-11-04 05:32:59,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38326 to 38326. [2021-11-04 05:32:59,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38326 states, 38082 states have (on average 1.4015545402027205) internal successors, (53374), 38105 states have internal predecessors, (53374), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-04 05:32:59,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38326 states to 38326 states and 53990 transitions. [2021-11-04 05:32:59,399 INFO L78 Accepts]: Start accepts. Automaton has 38326 states and 53990 transitions. Word has length 58 [2021-11-04 05:32:59,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:32:59,400 INFO L470 AbstractCegarLoop]: Abstraction has 38326 states and 53990 transitions. [2021-11-04 05:32:59,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:32:59,400 INFO L276 IsEmpty]: Start isEmpty. Operand 38326 states and 53990 transitions. [2021-11-04 05:32:59,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-04 05:32:59,403 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:32:59,403 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:32:59,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 05:32:59,404 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:32:59,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:32:59,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1868198347, now seen corresponding path program 1 times [2021-11-04 05:32:59,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:32:59,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758224953] [2021-11-04 05:32:59,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:32:59,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:32:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:32:59,512 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-04 05:32:59,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:32:59,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758224953] [2021-11-04 05:32:59,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758224953] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:32:59,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:32:59,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 05:32:59,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554237962] [2021-11-04 05:32:59,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:32:59,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:32:59,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:32:59,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:32:59,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:32:59,517 INFO L87 Difference]: Start difference. First operand 38326 states and 53990 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:34:50,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:34:50,419 INFO L93 Difference]: Finished difference Result 38326 states and 53990 transitions. [2021-11-04 05:34:50,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:34:50,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 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 59 [2021-11-04 05:34:50,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:34:50,494 INFO L225 Difference]: With dead ends: 38326 [2021-11-04 05:34:50,495 INFO L226 Difference]: Without dead ends: 33289 [2021-11-04 05:34:50,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:34:50,518 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 14214 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70845.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14214 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 14185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.88ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 109617.23ms IncrementalHoareTripleChecker+Time [2021-11-04 05:34:50,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14214 Valid, 80 Invalid, 14185 Unknown, 0 Unchecked, 47.88ms Time], IncrementalHoareTripleChecker [0 Valid, 14185 Invalid, 0 Unknown, 0 Unchecked, 109617.23ms Time] [2021-11-04 05:34:50,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33289 states. [2021-11-04 05:34:51,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33289 to 33289. [2021-11-04 05:34:51,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33289 states, 33046 states have (on average 1.3950856382012953) internal successors, (46102), 33068 states have internal predecessors, (46102), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-04 05:34:51,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33289 states to 33289 states and 46718 transitions. [2021-11-04 05:34:51,124 INFO L78 Accepts]: Start accepts. Automaton has 33289 states and 46718 transitions. Word has length 59 [2021-11-04 05:34:51,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:34:51,124 INFO L470 AbstractCegarLoop]: Abstraction has 33289 states and 46718 transitions. [2021-11-04 05:34:51,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:34:51,125 INFO L276 IsEmpty]: Start isEmpty. Operand 33289 states and 46718 transitions. [2021-11-04 05:34:51,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-04 05:34:51,138 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:34:51,138 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-11-04 05:34:51,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 05:34:51,139 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:34:51,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:34:51,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1356597391, now seen corresponding path program 1 times [2021-11-04 05:34:51,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:34:51,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700385567] [2021-11-04 05:34:51,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:34:51,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:34:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:34:51,232 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-04 05:34:51,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:34:51,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700385567] [2021-11-04 05:34:51,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700385567] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:34:51,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:34:51,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:34:51,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431630395] [2021-11-04 05:34:51,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:34:51,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:34:51,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:34:51,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:34:51,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:34:51,235 INFO L87 Difference]: Start difference. First operand 33289 states and 46718 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:37:38,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:37:38,398 INFO L93 Difference]: Finished difference Result 79942 states and 112573 transitions. [2021-11-04 05:37:38,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:37:38,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 87 [2021-11-04 05:37:38,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:37:38,531 INFO L225 Difference]: With dead ends: 79942 [2021-11-04 05:37:38,532 INFO L226 Difference]: Without dead ends: 46689 [2021-11-04 05:37:38,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:37:38,611 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 12639 mSDsluCounter, 6566 mSDsCounter, 0 mSdLazyCounter, 21179 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106779.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12639 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 21182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 69.64ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 165251.35ms IncrementalHoareTripleChecker+Time [2021-11-04 05:37:38,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12639 Valid, 200 Invalid, 21182 Unknown, 0 Unchecked, 69.64ms Time], IncrementalHoareTripleChecker [3 Valid, 21179 Invalid, 0 Unknown, 0 Unchecked, 165251.35ms Time] [2021-11-04 05:37:38,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46689 states. [2021-11-04 05:37:39,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46689 to 46671. [2021-11-04 05:37:39,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46671 states, 46188 states have (on average 1.39949770503161) internal successors, (64640), 46230 states have internal predecessors, (64640), 320 states have call successors, (320), 160 states have call predecessors, (320), 160 states have return successors, (912), 296 states have call predecessors, (912), 320 states have call successors, (912) [2021-11-04 05:37:39,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46671 states to 46671 states and 65872 transitions. [2021-11-04 05:37:39,748 INFO L78 Accepts]: Start accepts. Automaton has 46671 states and 65872 transitions. Word has length 87 [2021-11-04 05:37:39,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:37:39,749 INFO L470 AbstractCegarLoop]: Abstraction has 46671 states and 65872 transitions. [2021-11-04 05:37:39,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:37:39,749 INFO L276 IsEmpty]: Start isEmpty. Operand 46671 states and 65872 transitions. [2021-11-04 05:37:39,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-04 05:37:39,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:37:39,773 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:37:39,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-04 05:37:39,773 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-04 05:37:39,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:37:39,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1817547145, now seen corresponding path program 1 times [2021-11-04 05:37:39,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:37:39,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646527816] [2021-11-04 05:37:39,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:37:39,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:37:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:37:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-04 05:37:39,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:37:39,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646527816] [2021-11-04 05:37:39,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646527816] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:37:39,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:37:39,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 05:37:39,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927469326] [2021-11-04 05:37:39,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:37:39,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 05:37:39,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:37:39,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 05:37:39,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 05:37:39,873 INFO L87 Difference]: Start difference. First operand 46671 states and 65872 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) Killed by 15