./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.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 6b81be647295ba0700d02fa1d093d31284b02ba80deefc4d677fbd988693200b --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 10:09:49,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 10:09:49,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 10:09:49,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 10:09:49,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 10:09:49,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 10:09:49,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 10:09:49,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 10:09:49,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 10:09:49,745 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 10:09:49,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 10:09:49,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 10:09:49,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 10:09:49,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 10:09:49,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 10:09:49,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 10:09:49,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 10:09:49,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 10:09:49,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 10:09:49,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 10:09:49,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 10:09:49,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 10:09:49,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 10:09:49,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 10:09:49,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 10:09:49,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 10:09:49,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 10:09:49,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 10:09:49,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 10:09:49,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 10:09:49,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 10:09:49,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 10:09:49,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 10:09:49,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 10:09:49,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 10:09:49,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 10:09:49,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 10:09:49,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 10:09:49,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 10:09:49,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 10:09:49,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 10:09:49,773 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 10:09:49,796 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 10:09:49,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 10:09:49,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 10:09:49,797 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 10:09:49,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 10:09:49,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 10:09:49,799 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 10:09:49,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 10:09:49,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 10:09:49,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 10:09:49,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 10:09:49,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 10:09:49,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 10:09:49,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 10:09:49,800 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 10:09:49,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 10:09:49,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 10:09:49,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 10:09:49,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 10:09:49,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:09:49,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 10:09:49,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 10:09:49,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 10:09:49,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 10:09:49,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 10:09:49,802 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 10:09:49,802 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 10:09:49,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 10:09:49,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 10:09:49,803 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b81be647295ba0700d02fa1d093d31284b02ba80deefc4d677fbd988693200b [2021-11-04 10:09:50,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 10:09:50,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 10:09:50,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 10:09:50,035 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 10:09:50,036 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 10:09:50,037 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2021-11-04 10:09:50,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74b8b1360/a385f1f1a1754b1bb7e33e306b501d00/FLAG57d5e1ba2 [2021-11-04 10:09:50,734 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 10:09:50,735 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2021-11-04 10:09:50,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74b8b1360/a385f1f1a1754b1bb7e33e306b501d00/FLAG57d5e1ba2 [2021-11-04 10:09:51,118 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74b8b1360/a385f1f1a1754b1bb7e33e306b501d00 [2021-11-04 10:09:51,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 10:09:51,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 10:09:51,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 10:09:51,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 10:09:51,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 10:09:51,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:09:51" (1/1) ... [2021-11-04 10:09:51,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ffa2f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:09:51, skipping insertion in model container [2021-11-04 10:09:51,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:09:51" (1/1) ... [2021-11-04 10:09:51,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 10:09:51,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 10:09:52,766 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315060,315073] [2021-11-04 10:09:52,768 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315229,315242] [2021-11-04 10:09:52,769 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315396,315409] [2021-11-04 10:09:52,769 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315564,315577] [2021-11-04 10:09:52,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:09:52,830 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 10:09:53,082 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315060,315073] [2021-11-04 10:09:53,083 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315229,315242] [2021-11-04 10:09:53,083 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315396,315409] [2021-11-04 10:09:53,084 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315564,315577] [2021-11-04 10:09:53,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:09:53,192 INFO L208 MainTranslator]: Completed translation [2021-11-04 10:09:53,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:09:53 WrapperNode [2021-11-04 10:09:53,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 10:09:53,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 10:09:53,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 10:09:53,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 10:09:53,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:09:53" (1/1) ... [2021-11-04 10:09:53,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:09:53" (1/1) ... [2021-11-04 10:09:53,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 10:09:53,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 10:09:53,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 10:09:53,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 10:09:53,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:09:53" (1/1) ... [2021-11-04 10:09:53,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:09:53" (1/1) ... [2021-11-04 10:09:53,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:09:53" (1/1) ... [2021-11-04 10:09:53,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:09:53" (1/1) ... [2021-11-04 10:09:54,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:09:53" (1/1) ... [2021-11-04 10:09:54,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:09:53" (1/1) ... [2021-11-04 10:09:54,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:09:53" (1/1) ... [2021-11-04 10:09:54,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 10:09:54,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 10:09:54,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 10:09:54,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 10:09:54,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:09:53" (1/1) ... [2021-11-04 10:09:54,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:09:54,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 10:09:54,544 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 10:09:54,574 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 10:09:54,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 10:09:54,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 10:09:54,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 10:09:54,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 10:09:54,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 10:09:54,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 10:09:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 10:09:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 10:09:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 10:09:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 10:09:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_tx_timeout [2021-11-04 10:09:54,605 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_tx_timeout [2021-11-04 10:09:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 10:09:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 10:09:54,606 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 10:09:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 10:09:54,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 10:09:54,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 10:09:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 10:09:59,117 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-04 10:09:59,118 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 10:09:59,118 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 10:09:59,118 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 10:09:59,118 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 10:09:59,119 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 10:09:59,144 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 10:09:59,144 INFO L299 CfgBuilder]: Removed 8324 assume(true) statements. [2021-11-04 10:09:59,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:09:59 BoogieIcfgContainer [2021-11-04 10:09:59,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 10:09:59,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 10:09:59,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 10:09:59,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 10:09:59,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 10:09:51" (1/3) ... [2021-11-04 10:09:59,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551ea342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:09:59, skipping insertion in model container [2021-11-04 10:09:59,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:09:53" (2/3) ... [2021-11-04 10:09:59,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551ea342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:09:59, skipping insertion in model container [2021-11-04 10:09:59,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:09:59" (3/3) ... [2021-11-04 10:09:59,156 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2021-11-04 10:09:59,160 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 10:09:59,160 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2021-11-04 10:09:59,202 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 10:09:59,209 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 10:09:59,209 INFO L340 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2021-11-04 10:09:59,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 3785 states, 3722 states have (on average 1.2525523911875336) internal successors, (4662), 3780 states have internal predecessors, (4662), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-04 10:09:59,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-04 10:09:59,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:09:59,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:09:59,269 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:09:59,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:09:59,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1406977347, now seen corresponding path program 1 times [2021-11-04 10:09:59,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:09:59,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951693607] [2021-11-04 10:09:59,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:09:59,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:09:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:09:59,876 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 10:09:59,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:09:59,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951693607] [2021-11-04 10:09:59,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951693607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:09:59,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:09:59,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:09:59,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832445271] [2021-11-04 10:09:59,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:09:59,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:09:59,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:09:59,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:09:59,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:09:59,909 INFO L87 Difference]: Start difference. First operand has 3785 states, 3722 states have (on average 1.2525523911875336) internal successors, (4662), 3780 states have internal predecessors, (4662), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:10:01,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:10:02,802 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:10:07,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:10:16,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:10:16,241 INFO L93 Difference]: Finished difference Result 10345 states and 12768 transitions. [2021-11-04 10:10:16,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:10:16,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-04 10:10:16,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:10:16,270 INFO L225 Difference]: With dead ends: 10345 [2021-11-04 10:10:16,270 INFO L226 Difference]: Without dead ends: 5929 [2021-11-04 10:10:16,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:10:16,284 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 3525 mSDsluCounter, 4549 mSDsCounter, 0 mSdLazyCounter, 8356 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14080.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3525 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 8364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.67ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8356 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15663.51ms IncrementalHoareTripleChecker+Time [2021-11-04 10:10:16,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3525 Valid, 820 Invalid, 8364 Unknown, 0 Unchecked, 33.67ms Time], IncrementalHoareTripleChecker [7 Valid, 8356 Invalid, 1 Unknown, 0 Unchecked, 15663.51ms Time] [2021-11-04 10:10:16,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5929 states. [2021-11-04 10:10:16,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5929 to 5889. [2021-11-04 10:10:16,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5889 states, 5821 states have (on average 1.1441333104277616) internal successors, (6660), 5880 states have internal predecessors, (6660), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-04 10:10:16,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5889 states to 5889 states and 6672 transitions. [2021-11-04 10:10:16,454 INFO L78 Accepts]: Start accepts. Automaton has 5889 states and 6672 transitions. Word has length 39 [2021-11-04 10:10:16,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:10:16,454 INFO L470 AbstractCegarLoop]: Abstraction has 5889 states and 6672 transitions. [2021-11-04 10:10:16,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:10:16,456 INFO L276 IsEmpty]: Start isEmpty. Operand 5889 states and 6672 transitions. [2021-11-04 10:10:16,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-04 10:10:16,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:10:16,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:10:16,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 10:10:16,462 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:10:16,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:10:16,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1731787906, now seen corresponding path program 1 times [2021-11-04 10:10:16,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:10:16,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025963938] [2021-11-04 10:10:16,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:10:16,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:10:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:10:16,645 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 10:10:16,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:10:16,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025963938] [2021-11-04 10:10:16,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025963938] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:10:16,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:10:16,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:10:16,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403268345] [2021-11-04 10:10:16,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:10:16,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:10:16,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:10:16,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:10:16,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:10:16,649 INFO L87 Difference]: Start difference. First operand 5889 states and 6672 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:10:17,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:10:19,195 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:10:22,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:10:31,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:10:31,032 INFO L93 Difference]: Finished difference Result 13005 states and 14682 transitions. [2021-11-04 10:10:31,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:10:31,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-04 10:10:31,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:10:31,083 INFO L225 Difference]: With dead ends: 13005 [2021-11-04 10:10:31,084 INFO L226 Difference]: Without dead ends: 7176 [2021-11-04 10:10:31,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.00ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:10:31,100 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 2262 mSDsluCounter, 3722 mSDsCounter, 0 mSdLazyCounter, 7521 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12643.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2262 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 7532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.79ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 7521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14039.74ms IncrementalHoareTripleChecker+Time [2021-11-04 10:10:31,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2262 Valid, 17 Invalid, 7532 Unknown, 0 Unchecked, 17.79ms Time], IncrementalHoareTripleChecker [10 Valid, 7521 Invalid, 1 Unknown, 0 Unchecked, 14039.74ms Time] [2021-11-04 10:10:31,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7176 states. [2021-11-04 10:10:31,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7176 to 6503. [2021-11-04 10:10:31,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6503 states, 6430 states have (on average 1.1438569206842923) internal successors, (7355), 6490 states have internal predecessors, (7355), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2021-11-04 10:10:31,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6503 states to 6503 states and 7376 transitions. [2021-11-04 10:10:31,336 INFO L78 Accepts]: Start accepts. Automaton has 6503 states and 7376 transitions. Word has length 39 [2021-11-04 10:10:31,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:10:31,337 INFO L470 AbstractCegarLoop]: Abstraction has 6503 states and 7376 transitions. [2021-11-04 10:10:31,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:10:31,337 INFO L276 IsEmpty]: Start isEmpty. Operand 6503 states and 7376 transitions. [2021-11-04 10:10:31,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-04 10:10:31,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:10:31,340 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] [2021-11-04 10:10:31,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 10:10:31,341 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:10:31,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:10:31,342 INFO L85 PathProgramCache]: Analyzing trace with hash -597381755, now seen corresponding path program 1 times [2021-11-04 10:10:31,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:10:31,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113432292] [2021-11-04 10:10:31,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:10:31,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:10:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:10:31,547 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 10:10:31,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:10:31,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113432292] [2021-11-04 10:10:31,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113432292] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:10:31,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:10:31,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:10:31,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948185927] [2021-11-04 10:10:31,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:10:31,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:10:31,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:10:31,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:10:31,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:10:31,550 INFO L87 Difference]: Start difference. First operand 6503 states and 7376 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 10:10:36,014 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:10:46,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:10:46,210 INFO L93 Difference]: Finished difference Result 14115 states and 16022 transitions. [2021-11-04 10:10:46,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:10:46,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-04 10:10:46,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:10:46,265 INFO L225 Difference]: With dead ends: 14115 [2021-11-04 10:10:46,265 INFO L226 Difference]: Without dead ends: 7672 [2021-11-04 10:10:46,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.73ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:10:46,283 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 2046 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 8631 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12836.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2046 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 8640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.73ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8631 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14312.84ms IncrementalHoareTripleChecker+Time [2021-11-04 10:10:46,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2046 Valid, 15 Invalid, 8640 Unknown, 0 Unchecked, 21.73ms Time], IncrementalHoareTripleChecker [8 Valid, 8631 Invalid, 1 Unknown, 0 Unchecked, 14312.84ms Time] [2021-11-04 10:10:46,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7672 states. [2021-11-04 10:10:46,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7672 to 7241. [2021-11-04 10:10:46,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7241 states, 7171 states have (on average 1.1485148514851484) internal successors, (8236), 7231 states have internal predecessors, (8236), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2021-11-04 10:10:46,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7241 states to 7241 states and 8254 transitions. [2021-11-04 10:10:46,412 INFO L78 Accepts]: Start accepts. Automaton has 7241 states and 8254 transitions. Word has length 45 [2021-11-04 10:10:46,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:10:46,412 INFO L470 AbstractCegarLoop]: Abstraction has 7241 states and 8254 transitions. [2021-11-04 10:10:46,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 10:10:46,413 INFO L276 IsEmpty]: Start isEmpty. Operand 7241 states and 8254 transitions. [2021-11-04 10:10:46,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-04 10:10:46,413 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:10:46,414 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, 1, 1] [2021-11-04 10:10:46,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 10:10:46,414 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:10:46,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:10:46,415 INFO L85 PathProgramCache]: Analyzing trace with hash -218861770, now seen corresponding path program 1 times [2021-11-04 10:10:46,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:10:46,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621533915] [2021-11-04 10:10:46,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:10:46,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:10:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:10:46,634 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 10:10:46,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:10:46,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621533915] [2021-11-04 10:10:46,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621533915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:10:46,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:10:46,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:10:46,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930493615] [2021-11-04 10:10:46,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:10:46,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:10:46,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:10:46,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:10:46,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:10:46,636 INFO L87 Difference]: Start difference. First operand 7241 states and 8254 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 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 10:10:48,678 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:10:52,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:10:59,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:10:59,924 INFO L93 Difference]: Finished difference Result 14981 states and 17263 transitions. [2021-11-04 10:10:59,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:10:59,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 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 51 [2021-11-04 10:10:59,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:10:59,949 INFO L225 Difference]: With dead ends: 14981 [2021-11-04 10:10:59,950 INFO L226 Difference]: Without dead ends: 7800 [2021-11-04 10:10:59,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:10:59,964 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 3204 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 5381 mSolverCounterSat, 322 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11944.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3204 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 5705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.51ms SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 5381 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12941.75ms IncrementalHoareTripleChecker+Time [2021-11-04 10:10:59,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3204 Valid, 15 Invalid, 5705 Unknown, 0 Unchecked, 16.51ms Time], IncrementalHoareTripleChecker [322 Valid, 5381 Invalid, 2 Unknown, 0 Unchecked, 12941.75ms Time] [2021-11-04 10:10:59,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7800 states. [2021-11-04 10:11:00,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7800 to 7124. [2021-11-04 10:11:00,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7124 states, 7054 states have (on average 1.162602778565353) internal successors, (8201), 7114 states have internal predecessors, (8201), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2021-11-04 10:11:00,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7124 states to 7124 states and 8219 transitions. [2021-11-04 10:11:00,109 INFO L78 Accepts]: Start accepts. Automaton has 7124 states and 8219 transitions. Word has length 51 [2021-11-04 10:11:00,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:11:00,110 INFO L470 AbstractCegarLoop]: Abstraction has 7124 states and 8219 transitions. [2021-11-04 10:11:00,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 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 10:11:00,110 INFO L276 IsEmpty]: Start isEmpty. Operand 7124 states and 8219 transitions. [2021-11-04 10:11:00,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-04 10:11:00,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:11:00,111 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:11:00,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 10:11:00,112 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:11:00,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:11:00,112 INFO L85 PathProgramCache]: Analyzing trace with hash 2041952333, now seen corresponding path program 1 times [2021-11-04 10:11:00,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:11:00,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540232185] [2021-11-04 10:11:00,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:11:00,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:11:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:11:00,317 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:11:00,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:11:00,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540232185] [2021-11-04 10:11:00,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540232185] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:11:00,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:11:00,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:11:00,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616718702] [2021-11-04 10:11:00,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:11:00,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:11:00,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:11:00,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:11:00,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:11:00,324 INFO L87 Difference]: Start difference. First operand 7124 states and 8219 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 10:11:05,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:11:15,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:11:15,961 INFO L93 Difference]: Finished difference Result 20123 states and 23276 transitions. [2021-11-04 10:11:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:11:15,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2021-11-04 10:11:15,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:11:16,010 INFO L225 Difference]: With dead ends: 20123 [2021-11-04 10:11:16,010 INFO L226 Difference]: Without dead ends: 13117 [2021-11-04 10:11:16,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:11:16,032 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 2894 mSDsluCounter, 3768 mSDsCounter, 0 mSdLazyCounter, 9743 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13752.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2894 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 9749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.63ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9743 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15203.66ms IncrementalHoareTripleChecker+Time [2021-11-04 10:11:16,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2894 Valid, 18 Invalid, 9749 Unknown, 0 Unchecked, 14.63ms Time], IncrementalHoareTripleChecker [5 Valid, 9743 Invalid, 1 Unknown, 0 Unchecked, 15203.66ms Time] [2021-11-04 10:11:16,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13117 states. [2021-11-04 10:11:16,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13117 to 13077. [2021-11-04 10:11:16,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13077 states, 12995 states have (on average 1.1617545209696036) internal successors, (15097), 13058 states have internal predecessors, (15097), 12 states have call successors, (12), 8 states have call predecessors, (12), 12 states have return successors, (24), 16 states have call predecessors, (24), 12 states have call successors, (24) [2021-11-04 10:11:16,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13077 states to 13077 states and 15133 transitions. [2021-11-04 10:11:16,319 INFO L78 Accepts]: Start accepts. Automaton has 13077 states and 15133 transitions. Word has length 68 [2021-11-04 10:11:16,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:11:16,320 INFO L470 AbstractCegarLoop]: Abstraction has 13077 states and 15133 transitions. [2021-11-04 10:11:16,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 10:11:16,321 INFO L276 IsEmpty]: Start isEmpty. Operand 13077 states and 15133 transitions. [2021-11-04 10:11:16,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-04 10:11:16,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:11:16,322 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:11:16,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 10:11:16,322 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:11:16,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:11:16,323 INFO L85 PathProgramCache]: Analyzing trace with hash 762088655, now seen corresponding path program 1 times [2021-11-04 10:11:16,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:11:16,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004866318] [2021-11-04 10:11:16,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:11:16,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:11:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:11:16,587 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:11:16,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:11:16,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004866318] [2021-11-04 10:11:16,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004866318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:11:16,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:11:16,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:11:16,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054050031] [2021-11-04 10:11:16,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:11:16,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:11:16,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:11:16,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:11:16,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:11:16,590 INFO L87 Difference]: Start difference. First operand 13077 states and 15133 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 10:11:19,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:11:24,203 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:11:39,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:11:39,347 INFO L93 Difference]: Finished difference Result 32037 states and 37120 transitions. [2021-11-04 10:11:39,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:11:39,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2021-11-04 10:11:39,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:11:39,388 INFO L225 Difference]: With dead ends: 32037 [2021-11-04 10:11:39,388 INFO L226 Difference]: Without dead ends: 19078 [2021-11-04 10:11:39,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.29ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:11:39,420 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 2940 mSDsluCounter, 3723 mSDsCounter, 0 mSdLazyCounter, 10412 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20051.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2940 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 10420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.69ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 10412 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22004.20ms IncrementalHoareTripleChecker+Time [2021-11-04 10:11:39,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2940 Valid, 18 Invalid, 10420 Unknown, 0 Unchecked, 29.69ms Time], IncrementalHoareTripleChecker [6 Valid, 10412 Invalid, 2 Unknown, 0 Unchecked, 22004.20ms Time] [2021-11-04 10:11:39,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19078 states. [2021-11-04 10:11:40,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19078 to 18989. [2021-11-04 10:11:40,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18989 states, 18895 states have (on average 1.1617888330246098) internal successors, (21952), 18961 states have internal predecessors, (21952), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:11:40,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18989 states to 18989 states and 22006 transitions. [2021-11-04 10:11:40,056 INFO L78 Accepts]: Start accepts. Automaton has 18989 states and 22006 transitions. Word has length 68 [2021-11-04 10:11:40,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:11:40,056 INFO L470 AbstractCegarLoop]: Abstraction has 18989 states and 22006 transitions. [2021-11-04 10:11:40,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 10:11:40,057 INFO L276 IsEmpty]: Start isEmpty. Operand 18989 states and 22006 transitions. [2021-11-04 10:11:40,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-04 10:11:40,058 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:11:40,058 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:11:40,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 10:11:40,058 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:11:40,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:11:40,059 INFO L85 PathProgramCache]: Analyzing trace with hash -443277702, now seen corresponding path program 1 times [2021-11-04 10:11:40,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:11:40,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850303658] [2021-11-04 10:11:40,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:11:40,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:11:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:11:40,248 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:11:40,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:11:40,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850303658] [2021-11-04 10:11:40,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850303658] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:11:40,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:11:40,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:11:40,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122162791] [2021-11-04 10:11:40,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:11:40,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:11:40,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:11:40,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:11:40,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:11:40,250 INFO L87 Difference]: Start difference. First operand 18989 states and 22006 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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 10:11:42,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:11:46,502 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:11:59,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:11:59,862 INFO L93 Difference]: Finished difference Result 21458 states and 24790 transitions. [2021-11-04 10:11:59,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:11:59,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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 69 [2021-11-04 10:11:59,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:11:59,920 INFO L225 Difference]: With dead ends: 21458 [2021-11-04 10:11:59,920 INFO L226 Difference]: Without dead ends: 21452 [2021-11-04 10:11:59,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.57ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:11:59,934 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 991 mSDsluCounter, 7412 mSDsCounter, 0 mSdLazyCounter, 11262 mSolverCounterSat, 67 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17539.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 71.16ms SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 11262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19087.71ms IncrementalHoareTripleChecker+Time [2021-11-04 10:11:59,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 18 Invalid, 11331 Unknown, 0 Unchecked, 71.16ms Time], IncrementalHoareTripleChecker [67 Valid, 11262 Invalid, 2 Unknown, 0 Unchecked, 19087.71ms Time] [2021-11-04 10:11:59,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21452 states. [2021-11-04 10:12:00,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21452 to 21316. [2021-11-04 10:12:00,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21316 states, 21222 states have (on average 1.1591273207049289) internal successors, (24599), 21288 states have internal predecessors, (24599), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:12:00,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21316 states to 21316 states and 24653 transitions. [2021-11-04 10:12:00,492 INFO L78 Accepts]: Start accepts. Automaton has 21316 states and 24653 transitions. Word has length 69 [2021-11-04 10:12:00,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:12:00,493 INFO L470 AbstractCegarLoop]: Abstraction has 21316 states and 24653 transitions. [2021-11-04 10:12:00,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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 10:12:00,493 INFO L276 IsEmpty]: Start isEmpty. Operand 21316 states and 24653 transitions. [2021-11-04 10:12:00,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-04 10:12:00,498 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:12:00,498 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:12:00,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 10:12:00,499 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:12:00,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:12:00,502 INFO L85 PathProgramCache]: Analyzing trace with hash -787889475, now seen corresponding path program 1 times [2021-11-04 10:12:00,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:12:00,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913527930] [2021-11-04 10:12:00,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:12:00,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:12:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:12:00,680 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:12:00,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:12:00,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913527930] [2021-11-04 10:12:00,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913527930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:12:00,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:12:00,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:12:00,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497870235] [2021-11-04 10:12:00,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:12:00,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:12:00,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:12:00,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:12:00,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:12:00,682 INFO L87 Difference]: Start difference. First operand 21316 states and 24653 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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 10:12:02,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:12:06,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:12:22,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:12:22,665 INFO L93 Difference]: Finished difference Result 21452 states and 24784 transitions. [2021-11-04 10:12:22,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:12:22,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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 71 [2021-11-04 10:12:22,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:12:22,701 INFO L225 Difference]: With dead ends: 21452 [2021-11-04 10:12:22,701 INFO L226 Difference]: Without dead ends: 21446 [2021-11-04 10:12:22,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.71ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:12:22,712 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 980 mSDsluCounter, 7412 mSDsCounter, 0 mSdLazyCounter, 11262 mSolverCounterSat, 70 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19730.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.38ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 11262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21328.77ms IncrementalHoareTripleChecker+Time [2021-11-04 10:12:22,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 18 Invalid, 11334 Unknown, 0 Unchecked, 46.38ms Time], IncrementalHoareTripleChecker [70 Valid, 11262 Invalid, 2 Unknown, 0 Unchecked, 21328.77ms Time] [2021-11-04 10:12:22,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21446 states. [2021-11-04 10:12:23,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21446 to 21322. [2021-11-04 10:12:23,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21322 states, 21228 states have (on average 1.1590823440738647) internal successors, (24605), 21294 states have internal predecessors, (24605), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:12:23,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21322 states to 21322 states and 24659 transitions. [2021-11-04 10:12:23,223 INFO L78 Accepts]: Start accepts. Automaton has 21322 states and 24659 transitions. Word has length 71 [2021-11-04 10:12:23,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:12:23,223 INFO L470 AbstractCegarLoop]: Abstraction has 21322 states and 24659 transitions. [2021-11-04 10:12:23,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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 10:12:23,223 INFO L276 IsEmpty]: Start isEmpty. Operand 21322 states and 24659 transitions. [2021-11-04 10:12:23,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-04 10:12:23,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:12:23,224 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:12:23,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 10:12:23,225 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:12:23,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:12:23,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1247321216, now seen corresponding path program 1 times [2021-11-04 10:12:23,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:12:23,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558155369] [2021-11-04 10:12:23,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:12:23,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:12:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:12:23,409 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:12:23,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:12:23,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558155369] [2021-11-04 10:12:23,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558155369] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:12:23,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:12:23,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:12:23,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873985190] [2021-11-04 10:12:23,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:12:23,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:12:23,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:12:23,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:12:23,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:12:23,412 INFO L87 Difference]: Start difference. First operand 21322 states and 24659 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:12:25,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:12:29,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:12:44,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:12:44,107 INFO L93 Difference]: Finished difference Result 21446 states and 24778 transitions. [2021-11-04 10:12:44,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:12:44,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-04 10:12:44,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:12:44,134 INFO L225 Difference]: With dead ends: 21446 [2021-11-04 10:12:44,135 INFO L226 Difference]: Without dead ends: 21440 [2021-11-04 10:12:44,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.74ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:12:44,141 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 972 mSDsluCounter, 7412 mSDsCounter, 0 mSdLazyCounter, 11262 mSolverCounterSat, 70 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18545.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.81ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 11262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20093.79ms IncrementalHoareTripleChecker+Time [2021-11-04 10:12:44,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [972 Valid, 18 Invalid, 11334 Unknown, 0 Unchecked, 38.81ms Time], IncrementalHoareTripleChecker [70 Valid, 11262 Invalid, 2 Unknown, 0 Unchecked, 20093.79ms Time] [2021-11-04 10:12:44,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21440 states. [2021-11-04 10:12:44,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21440 to 21328. [2021-11-04 10:12:44,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21328 states, 21234 states have (on average 1.1590373928605067) internal successors, (24611), 21300 states have internal predecessors, (24611), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:12:44,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21328 states to 21328 states and 24665 transitions. [2021-11-04 10:12:44,502 INFO L78 Accepts]: Start accepts. Automaton has 21328 states and 24665 transitions. Word has length 73 [2021-11-04 10:12:44,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:12:44,502 INFO L470 AbstractCegarLoop]: Abstraction has 21328 states and 24665 transitions. [2021-11-04 10:12:44,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:12:44,503 INFO L276 IsEmpty]: Start isEmpty. Operand 21328 states and 24665 transitions. [2021-11-04 10:12:44,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-04 10:12:44,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:12:44,504 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:12:44,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-04 10:12:44,504 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:12:44,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:12:44,505 INFO L85 PathProgramCache]: Analyzing trace with hash -379592509, now seen corresponding path program 1 times [2021-11-04 10:12:44,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:12:44,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184396039] [2021-11-04 10:12:44,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:12:44,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:12:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:12:44,672 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:12:44,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:12:44,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184396039] [2021-11-04 10:12:44,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184396039] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:12:44,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:12:44,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:12:44,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123423150] [2021-11-04 10:12:44,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:12:44,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:12:44,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:12:44,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:12:44,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:12:44,674 INFO L87 Difference]: Start difference. First operand 21328 states and 24665 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 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 10:12:46,720 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:12:50,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:13:01,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:13:01,527 INFO L93 Difference]: Finished difference Result 21440 states and 24772 transitions. [2021-11-04 10:13:01,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:13:01,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 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 75 [2021-11-04 10:13:01,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:13:01,559 INFO L225 Difference]: With dead ends: 21440 [2021-11-04 10:13:01,559 INFO L226 Difference]: Without dead ends: 21434 [2021-11-04 10:13:01,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.31ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:13:01,571 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 964 mSDsluCounter, 7412 mSDsCounter, 0 mSdLazyCounter, 11262 mSolverCounterSat, 70 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14961.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.74ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 11262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16308.23ms IncrementalHoareTripleChecker+Time [2021-11-04 10:13:01,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [964 Valid, 18 Invalid, 11334 Unknown, 0 Unchecked, 23.74ms Time], IncrementalHoareTripleChecker [70 Valid, 11262 Invalid, 2 Unknown, 0 Unchecked, 16308.23ms Time] [2021-11-04 10:13:01,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21434 states. [2021-11-04 10:13:01,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21434 to 21334. [2021-11-04 10:13:01,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21334 states, 21240 states have (on average 1.1589924670433145) internal successors, (24617), 21306 states have internal predecessors, (24617), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:13:01,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21334 states to 21334 states and 24671 transitions. [2021-11-04 10:13:01,949 INFO L78 Accepts]: Start accepts. Automaton has 21334 states and 24671 transitions. Word has length 75 [2021-11-04 10:13:01,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:13:01,950 INFO L470 AbstractCegarLoop]: Abstraction has 21334 states and 24671 transitions. [2021-11-04 10:13:01,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 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 10:13:01,950 INFO L276 IsEmpty]: Start isEmpty. Operand 21334 states and 24671 transitions. [2021-11-04 10:13:01,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-04 10:13:01,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:13:01,951 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:13:01,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-04 10:13:01,952 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:13:01,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:13:01,952 INFO L85 PathProgramCache]: Analyzing trace with hash 284039814, now seen corresponding path program 1 times [2021-11-04 10:13:01,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:13:01,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783239081] [2021-11-04 10:13:01,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:13:01,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:13:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:13:02,094 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:13:02,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:13:02,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783239081] [2021-11-04 10:13:02,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783239081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:13:02,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:13:02,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:13:02,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060300965] [2021-11-04 10:13:02,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:13:02,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:13:02,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:13:02,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:13:02,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:13:02,096 INFO L87 Difference]: Start difference. First operand 21334 states and 24671 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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 10:13:04,146 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:13:07,626 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:13:21,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:13:21,258 INFO L93 Difference]: Finished difference Result 21434 states and 24766 transitions. [2021-11-04 10:13:21,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:13:21,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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 77 [2021-11-04 10:13:21,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:13:21,283 INFO L225 Difference]: With dead ends: 21434 [2021-11-04 10:13:21,283 INFO L226 Difference]: Without dead ends: 21428 [2021-11-04 10:13:21,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.40ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:13:21,290 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 956 mSDsluCounter, 7412 mSDsCounter, 0 mSdLazyCounter, 11262 mSolverCounterSat, 70 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17116.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.19ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 11262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18638.94ms IncrementalHoareTripleChecker+Time [2021-11-04 10:13:21,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [956 Valid, 18 Invalid, 11334 Unknown, 0 Unchecked, 28.19ms Time], IncrementalHoareTripleChecker [70 Valid, 11262 Invalid, 2 Unknown, 0 Unchecked, 18638.94ms Time] [2021-11-04 10:13:21,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21428 states. [2021-11-04 10:13:21,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21428 to 21340. [2021-11-04 10:13:21,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21340 states, 21246 states have (on average 1.1589475666007718) internal successors, (24623), 21312 states have internal predecessors, (24623), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:13:21,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21340 states to 21340 states and 24677 transitions. [2021-11-04 10:13:21,670 INFO L78 Accepts]: Start accepts. Automaton has 21340 states and 24677 transitions. Word has length 77 [2021-11-04 10:13:21,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:13:21,671 INFO L470 AbstractCegarLoop]: Abstraction has 21340 states and 24677 transitions. [2021-11-04 10:13:21,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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 10:13:21,671 INFO L276 IsEmpty]: Start isEmpty. Operand 21340 states and 24677 transitions. [2021-11-04 10:13:21,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-04 10:13:21,672 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:13:21,672 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:13:21,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-04 10:13:21,673 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:13:21,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:13:21,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1915424567, now seen corresponding path program 1 times [2021-11-04 10:13:21,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:13:21,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519974617] [2021-11-04 10:13:21,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:13:21,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:13:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:13:21,858 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:13:21,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:13:21,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519974617] [2021-11-04 10:13:21,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519974617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:13:21,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:13:21,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:13:21,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109125927] [2021-11-04 10:13:21,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:13:21,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:13:21,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:13:21,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:13:21,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:13:21,860 INFO L87 Difference]: Start difference. First operand 21340 states and 24677 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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 10:13:23,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:13:28,194 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:13:44,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:13:44,292 INFO L93 Difference]: Finished difference Result 21428 states and 24760 transitions. [2021-11-04 10:13:44,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:13:44,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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 79 [2021-11-04 10:13:44,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:13:44,324 INFO L225 Difference]: With dead ends: 21428 [2021-11-04 10:13:44,325 INFO L226 Difference]: Without dead ends: 21422 [2021-11-04 10:13:44,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.34ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:13:44,336 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 948 mSDsluCounter, 7413 mSDsCounter, 0 mSdLazyCounter, 11264 mSolverCounterSat, 70 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19889.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.28ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 11264 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21810.27ms IncrementalHoareTripleChecker+Time [2021-11-04 10:13:44,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 18 Invalid, 11335 Unknown, 0 Unchecked, 41.28ms Time], IncrementalHoareTripleChecker [70 Valid, 11264 Invalid, 1 Unknown, 0 Unchecked, 21810.27ms Time] [2021-11-04 10:13:44,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21422 states. [2021-11-04 10:13:44,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21422 to 21346. [2021-11-04 10:13:44,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21346 states, 21252 states have (on average 1.1589026915113871) internal successors, (24629), 21318 states have internal predecessors, (24629), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:13:44,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21346 states to 21346 states and 24683 transitions. [2021-11-04 10:13:44,738 INFO L78 Accepts]: Start accepts. Automaton has 21346 states and 24683 transitions. Word has length 79 [2021-11-04 10:13:44,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:13:44,738 INFO L470 AbstractCegarLoop]: Abstraction has 21346 states and 24683 transitions. [2021-11-04 10:13:44,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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 10:13:44,739 INFO L276 IsEmpty]: Start isEmpty. Operand 21346 states and 24683 transitions. [2021-11-04 10:13:44,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-04 10:13:44,740 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:13:44,740 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:13:44,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-04 10:13:44,741 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:13:44,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:13:44,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1818182540, now seen corresponding path program 1 times [2021-11-04 10:13:44,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:13:44,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957054313] [2021-11-04 10:13:44,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:13:44,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:13:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:13:44,912 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:13:44,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:13:44,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957054313] [2021-11-04 10:13:44,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957054313] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:13:44,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:13:44,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:13:44,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148174797] [2021-11-04 10:13:44,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:13:44,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:13:44,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:13:44,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:13:44,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:13:44,913 INFO L87 Difference]: Start difference. First operand 21346 states and 24683 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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 10:13:46,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:13:51,030 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:14:07,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:14:07,375 INFO L93 Difference]: Finished difference Result 21422 states and 24754 transitions. [2021-11-04 10:14:07,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:14:07,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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 81 [2021-11-04 10:14:07,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:14:07,444 INFO L225 Difference]: With dead ends: 21422 [2021-11-04 10:14:07,444 INFO L226 Difference]: Without dead ends: 21416 [2021-11-04 10:14:07,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.57ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:14:07,454 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 940 mSDsluCounter, 7412 mSDsCounter, 0 mSdLazyCounter, 11262 mSolverCounterSat, 70 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20071.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.59ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 11262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21807.42ms IncrementalHoareTripleChecker+Time [2021-11-04 10:14:07,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [940 Valid, 18 Invalid, 11334 Unknown, 0 Unchecked, 41.59ms Time], IncrementalHoareTripleChecker [70 Valid, 11262 Invalid, 2 Unknown, 0 Unchecked, 21807.42ms Time] [2021-11-04 10:14:07,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21416 states. [2021-11-04 10:14:07,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21416 to 21352. [2021-11-04 10:14:07,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21352 states, 21258 states have (on average 1.1588578417536928) internal successors, (24635), 21324 states have internal predecessors, (24635), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:14:07,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21352 states to 21352 states and 24689 transitions. [2021-11-04 10:14:07,867 INFO L78 Accepts]: Start accepts. Automaton has 21352 states and 24689 transitions. Word has length 81 [2021-11-04 10:14:07,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:14:07,868 INFO L470 AbstractCegarLoop]: Abstraction has 21352 states and 24689 transitions. [2021-11-04 10:14:07,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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 10:14:07,868 INFO L276 IsEmpty]: Start isEmpty. Operand 21352 states and 24689 transitions. [2021-11-04 10:14:07,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-04 10:14:07,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:14:07,870 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:14:07,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-04 10:14:07,870 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:14:07,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:14:07,870 INFO L85 PathProgramCache]: Analyzing trace with hash -341996771, now seen corresponding path program 1 times [2021-11-04 10:14:07,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:14:07,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397812049] [2021-11-04 10:14:07,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:14:07,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:14:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:14:08,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:14:08,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:14:08,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397812049] [2021-11-04 10:14:08,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397812049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:14:08,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:14:08,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:14:08,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792631476] [2021-11-04 10:14:08,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:14:08,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:14:08,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:14:08,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:14:08,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:14:08,087 INFO L87 Difference]: Start difference. First operand 21352 states and 24689 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 10:14:14,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:14:26,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:14:26,295 INFO L93 Difference]: Finished difference Result 45359 states and 52895 transitions. [2021-11-04 10:14:26,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:14:26,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 83 [2021-11-04 10:14:26,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:14:26,343 INFO L225 Difference]: With dead ends: 45359 [2021-11-04 10:14:26,343 INFO L226 Difference]: Without dead ends: 24125 [2021-11-04 10:14:26,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:14:26,388 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 523 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 8129 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15808.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 8143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.85ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 8129 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17472.79ms IncrementalHoareTripleChecker+Time [2021-11-04 10:14:26,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 21 Invalid, 8143 Unknown, 0 Unchecked, 24.85ms Time], IncrementalHoareTripleChecker [13 Valid, 8129 Invalid, 1 Unknown, 0 Unchecked, 17472.79ms Time] [2021-11-04 10:14:26,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24125 states. [2021-11-04 10:14:26,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24125 to 22798. [2021-11-04 10:14:26,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22798 states, 22704 states have (on average 1.1682522903453136) internal successors, (26524), 22770 states have internal predecessors, (26524), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:14:26,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22798 states to 22798 states and 26578 transitions. [2021-11-04 10:14:26,984 INFO L78 Accepts]: Start accepts. Automaton has 22798 states and 26578 transitions. Word has length 83 [2021-11-04 10:14:26,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:14:26,984 INFO L470 AbstractCegarLoop]: Abstraction has 22798 states and 26578 transitions. [2021-11-04 10:14:26,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 10:14:26,984 INFO L276 IsEmpty]: Start isEmpty. Operand 22798 states and 26578 transitions. [2021-11-04 10:14:26,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-04 10:14:26,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:14:26,986 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:14:26,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-04 10:14:26,986 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:14:26,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:14:26,986 INFO L85 PathProgramCache]: Analyzing trace with hash -778046769, now seen corresponding path program 1 times [2021-11-04 10:14:26,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:14:26,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54487926] [2021-11-04 10:14:26,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:14:26,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:14:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:14:27,177 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:14:27,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:14:27,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54487926] [2021-11-04 10:14:27,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54487926] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:14:27,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:14:27,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:14:27,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797831099] [2021-11-04 10:14:27,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:14:27,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:14:27,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:14:27,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:14:27,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:14:27,179 INFO L87 Difference]: Start difference. First operand 22798 states and 26578 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 10:14:30,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:14:34,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:14:50,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:14:50,214 INFO L93 Difference]: Finished difference Result 22862 states and 26637 transitions. [2021-11-04 10:14:50,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:14:50,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 83 [2021-11-04 10:14:50,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:14:50,243 INFO L225 Difference]: With dead ends: 22862 [2021-11-04 10:14:50,243 INFO L226 Difference]: Without dead ends: 22856 [2021-11-04 10:14:50,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.34ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:14:50,249 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 932 mSDsluCounter, 7413 mSDsCounter, 0 mSdLazyCounter, 11263 mSolverCounterSat, 70 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20388.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.65ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 11263 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22270.98ms IncrementalHoareTripleChecker+Time [2021-11-04 10:14:50,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 18 Invalid, 11335 Unknown, 0 Unchecked, 41.65ms Time], IncrementalHoareTripleChecker [70 Valid, 11263 Invalid, 2 Unknown, 0 Unchecked, 22270.98ms Time] [2021-11-04 10:14:50,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22856 states. [2021-11-04 10:14:50,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22856 to 22804. [2021-11-04 10:14:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22804 states, 22710 states have (on average 1.1682078379568472) internal successors, (26530), 22776 states have internal predecessors, (26530), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:14:50,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22804 states to 22804 states and 26584 transitions. [2021-11-04 10:14:50,650 INFO L78 Accepts]: Start accepts. Automaton has 22804 states and 26584 transitions. Word has length 83 [2021-11-04 10:14:50,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:14:50,650 INFO L470 AbstractCegarLoop]: Abstraction has 22804 states and 26584 transitions. [2021-11-04 10:14:50,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 10:14:50,650 INFO L276 IsEmpty]: Start isEmpty. Operand 22804 states and 26584 transitions. [2021-11-04 10:14:50,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-04 10:14:50,652 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:14:50,652 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:14:50,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-04 10:14:50,652 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:14:50,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:14:50,653 INFO L85 PathProgramCache]: Analyzing trace with hash -378413422, now seen corresponding path program 1 times [2021-11-04 10:14:50,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:14:50,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036921619] [2021-11-04 10:14:50,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:14:50,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:14:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:14:50,797 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:14:50,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:14:50,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036921619] [2021-11-04 10:14:50,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036921619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:14:50,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:14:50,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:14:50,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603583234] [2021-11-04 10:14:50,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:14:50,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:14:50,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:14:50,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:14:50,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:14:50,799 INFO L87 Difference]: Start difference. First operand 22804 states and 26584 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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 10:14:52,905 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:14:56,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:15:13,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:15:13,837 INFO L93 Difference]: Finished difference Result 33327 states and 39139 transitions. [2021-11-04 10:15:13,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:15:13,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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 85 [2021-11-04 10:15:13,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:15:13,901 INFO L225 Difference]: With dead ends: 33327 [2021-11-04 10:15:13,902 INFO L226 Difference]: Without dead ends: 33321 [2021-11-04 10:15:13,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.58ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:15:13,920 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 1352 mSDsluCounter, 7725 mSDsCounter, 0 mSdLazyCounter, 12227 mSolverCounterSat, 82 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20409.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 12311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.69ms SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 12227 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22140.10ms IncrementalHoareTripleChecker+Time [2021-11-04 10:15:13,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1352 Valid, 22 Invalid, 12311 Unknown, 0 Unchecked, 43.69ms Time], IncrementalHoareTripleChecker [82 Valid, 12227 Invalid, 2 Unknown, 0 Unchecked, 22140.10ms Time] [2021-11-04 10:15:13,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33321 states. [2021-11-04 10:15:14,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33321 to 31666. [2021-11-04 10:15:14,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31666 states, 31572 states have (on average 1.1815849486887116) internal successors, (37305), 31638 states have internal predecessors, (37305), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:15:14,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31666 states to 31666 states and 37359 transitions. [2021-11-04 10:15:14,721 INFO L78 Accepts]: Start accepts. Automaton has 31666 states and 37359 transitions. Word has length 85 [2021-11-04 10:15:14,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:15:14,722 INFO L470 AbstractCegarLoop]: Abstraction has 31666 states and 37359 transitions. [2021-11-04 10:15:14,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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 10:15:14,722 INFO L276 IsEmpty]: Start isEmpty. Operand 31666 states and 37359 transitions. [2021-11-04 10:15:14,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-04 10:15:14,723 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:15:14,723 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:15:14,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-04 10:15:14,724 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:15:14,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:15:14,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1417144021, now seen corresponding path program 1 times [2021-11-04 10:15:14,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:15:14,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534839167] [2021-11-04 10:15:14,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:15:14,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:15:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:15:14,941 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:15:14,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:15:14,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534839167] [2021-11-04 10:15:14,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534839167] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:15:14,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:15:14,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:15:14,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25490587] [2021-11-04 10:15:14,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:15:14,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:15:14,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:15:14,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:15:14,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:15:14,943 INFO L87 Difference]: Start difference. First operand 31666 states and 37359 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 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 10:15:17,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:15:20,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:15:37,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:15:37,353 INFO L93 Difference]: Finished difference Result 31712 states and 37400 transitions. [2021-11-04 10:15:37,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:15:37,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 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 10:15:37,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:15:37,397 INFO L225 Difference]: With dead ends: 31712 [2021-11-04 10:15:37,398 INFO L226 Difference]: Without dead ends: 31706 [2021-11-04 10:15:37,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.25ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:15:37,406 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 916 mSDsluCounter, 7412 mSDsCounter, 0 mSdLazyCounter, 11262 mSolverCounterSat, 70 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19772.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.93ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 11262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21484.96ms IncrementalHoareTripleChecker+Time [2021-11-04 10:15:37,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [916 Valid, 18 Invalid, 11334 Unknown, 0 Unchecked, 38.93ms Time], IncrementalHoareTripleChecker [70 Valid, 11262 Invalid, 2 Unknown, 0 Unchecked, 21484.96ms Time] [2021-11-04 10:15:37,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31706 states. [2021-11-04 10:15:37,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31706 to 31678. [2021-11-04 10:15:37,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31678 states, 31584 states have (on average 1.1815159574468086) internal successors, (37317), 31650 states have internal predecessors, (37317), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:15:38,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31678 states to 31678 states and 37371 transitions. [2021-11-04 10:15:38,031 INFO L78 Accepts]: Start accepts. Automaton has 31678 states and 37371 transitions. Word has length 87 [2021-11-04 10:15:38,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:15:38,031 INFO L470 AbstractCegarLoop]: Abstraction has 31678 states and 37371 transitions. [2021-11-04 10:15:38,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 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 10:15:38,031 INFO L276 IsEmpty]: Start isEmpty. Operand 31678 states and 37371 transitions. [2021-11-04 10:15:38,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-04 10:15:38,032 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:15:38,033 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:15:38,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-04 10:15:38,033 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:15:38,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:15:38,033 INFO L85 PathProgramCache]: Analyzing trace with hash 370994072, now seen corresponding path program 1 times [2021-11-04 10:15:38,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:15:38,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826932270] [2021-11-04 10:15:38,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:15:38,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:15:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:15:38,280 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:15:38,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:15:38,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826932270] [2021-11-04 10:15:38,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826932270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:15:38,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:15:38,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:15:38,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790353629] [2021-11-04 10:15:38,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:15:38,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:15:38,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:15:38,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:15:38,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:15:38,281 INFO L87 Difference]: Start difference. First operand 31678 states and 37371 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 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 10:15:40,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:15:44,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:00,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:16:00,867 INFO L93 Difference]: Finished difference Result 31706 states and 37394 transitions. [2021-11-04 10:16:00,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:16:00,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 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 89 [2021-11-04 10:16:00,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:16:00,917 INFO L225 Difference]: With dead ends: 31706 [2021-11-04 10:16:00,918 INFO L226 Difference]: Without dead ends: 31700 [2021-11-04 10:16:00,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.36ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:16:00,932 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 908 mSDsluCounter, 7412 mSDsCounter, 0 mSdLazyCounter, 11262 mSolverCounterSat, 70 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20085.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.27ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 11262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21773.59ms IncrementalHoareTripleChecker+Time [2021-11-04 10:16:00,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [908 Valid, 18 Invalid, 11334 Unknown, 0 Unchecked, 45.27ms Time], IncrementalHoareTripleChecker [70 Valid, 11262 Invalid, 2 Unknown, 0 Unchecked, 21773.59ms Time] [2021-11-04 10:16:00,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31700 states. [2021-11-04 10:16:01,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31700 to 31684. [2021-11-04 10:16:01,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31684 states, 31590 states have (on average 1.1814814814814816) internal successors, (37323), 31656 states have internal predecessors, (37323), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:16:01,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31684 states to 31684 states and 37377 transitions. [2021-11-04 10:16:01,715 INFO L78 Accepts]: Start accepts. Automaton has 31684 states and 37377 transitions. Word has length 89 [2021-11-04 10:16:01,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:16:01,715 INFO L470 AbstractCegarLoop]: Abstraction has 31684 states and 37377 transitions. [2021-11-04 10:16:01,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 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 10:16:01,716 INFO L276 IsEmpty]: Start isEmpty. Operand 31684 states and 37377 transitions. [2021-11-04 10:16:01,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-04 10:16:01,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:16:01,717 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:16:01,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-04 10:16:01,718 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:16:01,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:16:01,718 INFO L85 PathProgramCache]: Analyzing trace with hash 43240667, now seen corresponding path program 1 times [2021-11-04 10:16:01,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:16:01,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076589708] [2021-11-04 10:16:01,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:16:01,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:16:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:16:01,883 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 10:16:01,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:16:01,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076589708] [2021-11-04 10:16:01,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076589708] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:16:01,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:16:01,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:16:01,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129257304] [2021-11-04 10:16:01,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:16:01,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:16:01,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:16:01,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:16:01,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:16:01,886 INFO L87 Difference]: Start difference. First operand 31684 states and 37377 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 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 10:16:03,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:07,801 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:23,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:16:23,573 INFO L93 Difference]: Finished difference Result 31700 states and 37388 transitions. [2021-11-04 10:16:23,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:16:23,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 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 91 [2021-11-04 10:16:23,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:16:23,623 INFO L225 Difference]: With dead ends: 31700 [2021-11-04 10:16:23,624 INFO L226 Difference]: Without dead ends: 31549 [2021-11-04 10:16:23,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.66ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:16:23,638 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 897 mSDsluCounter, 7412 mSDsCounter, 0 mSdLazyCounter, 11262 mSolverCounterSat, 73 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19125.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.42ms SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 11262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20795.88ms IncrementalHoareTripleChecker+Time [2021-11-04 10:16:23,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [897 Valid, 18 Invalid, 11337 Unknown, 0 Unchecked, 42.42ms Time], IncrementalHoareTripleChecker [73 Valid, 11262 Invalid, 2 Unknown, 0 Unchecked, 20795.88ms Time] [2021-11-04 10:16:23,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31549 states. [2021-11-04 10:16:24,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31549 to 31545. [2021-11-04 10:16:24,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31545 states, 31451 states have (on average 1.1814886649073162) internal successors, (37159), 31517 states have internal predecessors, (37159), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:16:24,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31545 states to 31545 states and 37213 transitions. [2021-11-04 10:16:24,456 INFO L78 Accepts]: Start accepts. Automaton has 31545 states and 37213 transitions. Word has length 91 [2021-11-04 10:16:24,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:16:24,456 INFO L470 AbstractCegarLoop]: Abstraction has 31545 states and 37213 transitions. [2021-11-04 10:16:24,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 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 10:16:24,456 INFO L276 IsEmpty]: Start isEmpty. Operand 31545 states and 37213 transitions. [2021-11-04 10:16:24,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-04 10:16:24,465 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:16:24,479 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:16:24,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-04 10:16:24,479 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:16:24,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:16:24,480 INFO L85 PathProgramCache]: Analyzing trace with hash 320811676, now seen corresponding path program 1 times [2021-11-04 10:16:24,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:16:24,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648066165] [2021-11-04 10:16:24,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:16:24,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:16:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:16:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 10:16:24,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:16:24,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648066165] [2021-11-04 10:16:24,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648066165] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:16:24,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:16:24,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:16:24,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943439804] [2021-11-04 10:16:24,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:16:24,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:16:24,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:16:24,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:16:24,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:16:24,662 INFO L87 Difference]: Start difference. First operand 31545 states and 37213 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:16:26,204 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:28,493 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:32,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:42,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:16:42,317 INFO L93 Difference]: Finished difference Result 67103 states and 79764 transitions. [2021-11-04 10:16:42,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:16:42,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-04 10:16:42,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:16:42,387 INFO L225 Difference]: With dead ends: 67103 [2021-11-04 10:16:42,388 INFO L226 Difference]: Without dead ends: 35631 [2021-11-04 10:16:42,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.85ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:16:42,457 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 522 mSDsluCounter, 3133 mSDsCounter, 0 mSdLazyCounter, 8131 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15241.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 8144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.03ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 8131 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16862.36ms IncrementalHoareTripleChecker+Time [2021-11-04 10:16:42,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [522 Valid, 21 Invalid, 8144 Unknown, 0 Unchecked, 16.03ms Time], IncrementalHoareTripleChecker [11 Valid, 8131 Invalid, 2 Unknown, 0 Unchecked, 16862.36ms Time] [2021-11-04 10:16:42,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35631 states. [2021-11-04 10:16:43,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35631 to 34092. [2021-11-04 10:16:43,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34092 states, 33998 states have (on average 1.1921583622566034) internal successors, (40531), 34064 states have internal predecessors, (40531), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:16:43,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34092 states to 34092 states and 40585 transitions. [2021-11-04 10:16:43,212 INFO L78 Accepts]: Start accepts. Automaton has 34092 states and 40585 transitions. Word has length 112 [2021-11-04 10:16:43,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:16:43,213 INFO L470 AbstractCegarLoop]: Abstraction has 34092 states and 40585 transitions. [2021-11-04 10:16:43,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:16:43,213 INFO L276 IsEmpty]: Start isEmpty. Operand 34092 states and 40585 transitions. [2021-11-04 10:16:43,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-04 10:16:43,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:16:43,215 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:16:43,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-04 10:16:43,215 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:16:43,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:16:43,217 INFO L85 PathProgramCache]: Analyzing trace with hash -2050927586, now seen corresponding path program 1 times [2021-11-04 10:16:43,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:16:43,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174460125] [2021-11-04 10:16:43,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:16:43,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:16:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:16:43,499 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 10:16:43,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:16:43,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174460125] [2021-11-04 10:16:43,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174460125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:16:43,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:16:43,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:16:43,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672757019] [2021-11-04 10:16:43,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:16:43,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:16:43,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:16:43,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:16:43,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:16:43,501 INFO L87 Difference]: Start difference. First operand 34092 states and 40585 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:16:45,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:48,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:17:01,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:17:01,591 INFO L93 Difference]: Finished difference Result 72300 states and 86694 transitions. [2021-11-04 10:17:01,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:17:01,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-04 10:17:01,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:17:01,657 INFO L225 Difference]: With dead ends: 72300 [2021-11-04 10:17:01,657 INFO L226 Difference]: Without dead ends: 38326 [2021-11-04 10:17:01,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.19ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:17:01,708 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 586 mSDsluCounter, 3082 mSDsCounter, 0 mSdLazyCounter, 8082 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15639.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 8098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.81ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 8082 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17102.99ms IncrementalHoareTripleChecker+Time [2021-11-04 10:17:01,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [586 Valid, 21 Invalid, 8098 Unknown, 0 Unchecked, 22.81ms Time], IncrementalHoareTripleChecker [14 Valid, 8082 Invalid, 2 Unknown, 0 Unchecked, 17102.99ms Time] [2021-11-04 10:17:01,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38326 states. [2021-11-04 10:17:02,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38326 to 36765. [2021-11-04 10:17:02,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36765 states, 36671 states have (on average 1.2010307872705952) internal successors, (44043), 36737 states have internal predecessors, (44043), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:17:02,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36765 states to 36765 states and 44097 transitions. [2021-11-04 10:17:02,516 INFO L78 Accepts]: Start accepts. Automaton has 36765 states and 44097 transitions. Word has length 112 [2021-11-04 10:17:02,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:17:02,516 INFO L470 AbstractCegarLoop]: Abstraction has 36765 states and 44097 transitions. [2021-11-04 10:17:02,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:17:02,516 INFO L276 IsEmpty]: Start isEmpty. Operand 36765 states and 44097 transitions. [2021-11-04 10:17:02,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-04 10:17:02,518 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:17:02,519 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:17:02,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-04 10:17:02,519 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:17:02,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:17:02,519 INFO L85 PathProgramCache]: Analyzing trace with hash 2087888917, now seen corresponding path program 1 times [2021-11-04 10:17:02,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:17:02,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104161025] [2021-11-04 10:17:02,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:17:02,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:17:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:17:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-04 10:17:02,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:17:02,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104161025] [2021-11-04 10:17:02,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104161025] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:17:02,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:17:02,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:17:02,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448947908] [2021-11-04 10:17:02,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:17:02,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:17:02,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:17:02,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:17:02,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:17:02,657 INFO L87 Difference]: Start difference. First operand 36765 states and 44097 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 10:17:03,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:17:05,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:17:07,963 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:17:19,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:17:19,581 INFO L93 Difference]: Finished difference Result 77597 states and 93640 transitions. [2021-11-04 10:17:19,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:17:19,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 154 [2021-11-04 10:17:19,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:17:19,665 INFO L225 Difference]: With dead ends: 77597 [2021-11-04 10:17:19,665 INFO L226 Difference]: Without dead ends: 40950 [2021-11-04 10:17:19,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.11ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:17:19,724 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 535 mSDsluCounter, 3122 mSDsCounter, 0 mSdLazyCounter, 7670 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14406.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 7682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.12ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 7670 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15893.96ms IncrementalHoareTripleChecker+Time [2021-11-04 10:17:19,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [535 Valid, 18 Invalid, 7682 Unknown, 0 Unchecked, 18.12ms Time], IncrementalHoareTripleChecker [11 Valid, 7670 Invalid, 1 Unknown, 0 Unchecked, 15893.96ms Time] [2021-11-04 10:17:19,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40950 states. [2021-11-04 10:17:20,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40950 to 39411. [2021-11-04 10:17:20,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39411 states, 39317 states have (on average 1.208840959381438) internal successors, (47528), 39383 states have internal predecessors, (47528), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:17:20,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39411 states to 39411 states and 47582 transitions. [2021-11-04 10:17:20,707 INFO L78 Accepts]: Start accepts. Automaton has 39411 states and 47582 transitions. Word has length 154 [2021-11-04 10:17:20,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:17:20,707 INFO L470 AbstractCegarLoop]: Abstraction has 39411 states and 47582 transitions. [2021-11-04 10:17:20,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 10:17:20,707 INFO L276 IsEmpty]: Start isEmpty. Operand 39411 states and 47582 transitions. [2021-11-04 10:17:20,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-04 10:17:20,710 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:17:20,710 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:17:20,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-04 10:17:20,711 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:17:20,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:17:20,711 INFO L85 PathProgramCache]: Analyzing trace with hash 164660883, now seen corresponding path program 1 times [2021-11-04 10:17:20,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:17:20,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527693895] [2021-11-04 10:17:20,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:17:20,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:17:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:17:20,865 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-04 10:17:20,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:17:20,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527693895] [2021-11-04 10:17:20,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527693895] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:17:20,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:17:20,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:17:20,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107406179] [2021-11-04 10:17:20,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:17:20,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:17:20,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:17:20,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:17:20,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:17:20,867 INFO L87 Difference]: Start difference. First operand 39411 states and 47582 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 10:17:22,916 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:17:26,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:17:37,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:17:37,190 INFO L93 Difference]: Finished difference Result 82862 states and 100556 transitions. [2021-11-04 10:17:37,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:17:37,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 154 [2021-11-04 10:17:37,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:17:37,343 INFO L225 Difference]: With dead ends: 82862 [2021-11-04 10:17:37,344 INFO L226 Difference]: Without dead ends: 43569 [2021-11-04 10:17:37,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.16ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:17:37,385 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 526 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 8130 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14037.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 8142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.01ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 8130 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15329.25ms IncrementalHoareTripleChecker+Time [2021-11-04 10:17:37,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [526 Valid, 21 Invalid, 8142 Unknown, 0 Unchecked, 19.01ms Time], IncrementalHoareTripleChecker [10 Valid, 8130 Invalid, 2 Unknown, 0 Unchecked, 15329.25ms Time] [2021-11-04 10:17:37,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43569 states. [2021-11-04 10:17:38,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43569 to 42030. [2021-11-04 10:17:38,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42030 states, 41936 states have (on average 1.2158050362457078) internal successors, (50986), 42002 states have internal predecessors, (50986), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:17:38,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42030 states to 42030 states and 51040 transitions. [2021-11-04 10:17:38,185 INFO L78 Accepts]: Start accepts. Automaton has 42030 states and 51040 transitions. Word has length 154 [2021-11-04 10:17:38,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:17:38,186 INFO L470 AbstractCegarLoop]: Abstraction has 42030 states and 51040 transitions. [2021-11-04 10:17:38,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 10:17:38,186 INFO L276 IsEmpty]: Start isEmpty. Operand 42030 states and 51040 transitions. [2021-11-04 10:17:38,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-04 10:17:38,189 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:17:38,189 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:17:38,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-04 10:17:38,190 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:17:38,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:17:38,190 INFO L85 PathProgramCache]: Analyzing trace with hash -927312362, now seen corresponding path program 1 times [2021-11-04 10:17:38,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:17:38,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045301613] [2021-11-04 10:17:38,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:17:38,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:17:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:17:38,416 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-04 10:17:38,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:17:38,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045301613] [2021-11-04 10:17:38,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045301613] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:17:38,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:17:38,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:17:38,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546842935] [2021-11-04 10:17:38,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:17:38,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:17:38,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:17:38,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:17:38,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:17:38,418 INFO L87 Difference]: Start difference. First operand 42030 states and 51040 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 10:17:40,479 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:17:43,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:17:56,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:17:56,942 INFO L93 Difference]: Finished difference Result 92794 states and 112989 transitions. [2021-11-04 10:17:56,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:17:56,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 166 [2021-11-04 10:17:56,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:17:57,061 INFO L225 Difference]: With dead ends: 92794 [2021-11-04 10:17:57,061 INFO L226 Difference]: Without dead ends: 54015 [2021-11-04 10:17:57,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.92ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:17:57,121 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 3450 mSDsluCounter, 3768 mSDsCounter, 0 mSdLazyCounter, 7634 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15422.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3450 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 7641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.91ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7634 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17083.25ms IncrementalHoareTripleChecker+Time [2021-11-04 10:17:57,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3450 Valid, 15 Invalid, 7641 Unknown, 0 Unchecked, 18.91ms Time], IncrementalHoareTripleChecker [5 Valid, 7634 Invalid, 2 Unknown, 0 Unchecked, 17083.25ms Time] [2021-11-04 10:17:57,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54015 states. [2021-11-04 10:17:57,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54015 to 42616. [2021-11-04 10:17:58,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42616 states, 42522 states have (on average 1.2143831428437044) internal successors, (51638), 42588 states have internal predecessors, (51638), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:17:58,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42616 states to 42616 states and 51692 transitions. [2021-11-04 10:17:58,102 INFO L78 Accepts]: Start accepts. Automaton has 42616 states and 51692 transitions. Word has length 166 [2021-11-04 10:17:58,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:17:58,103 INFO L470 AbstractCegarLoop]: Abstraction has 42616 states and 51692 transitions. [2021-11-04 10:17:58,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 10:17:58,103 INFO L276 IsEmpty]: Start isEmpty. Operand 42616 states and 51692 transitions. [2021-11-04 10:17:58,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-04 10:17:58,106 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:17:58,106 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:17:58,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-04 10:17:58,106 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:17:58,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:17:58,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1252122921, now seen corresponding path program 1 times [2021-11-04 10:17:58,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:17:58,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031929472] [2021-11-04 10:17:58,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:17:58,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:17:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:17:58,536 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-04 10:17:58,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:17:58,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031929472] [2021-11-04 10:17:58,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031929472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:17:58,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:17:58,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:17:58,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745312010] [2021-11-04 10:17:58,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:17:58,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:17:58,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:17:58,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:17:58,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:17:58,538 INFO L87 Difference]: Start difference. First operand 42616 states and 51692 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:18:01,108 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:18:03,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:18:17,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:18:17,071 INFO L93 Difference]: Finished difference Result 100282 states and 122100 transitions. [2021-11-04 10:18:17,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:18:17,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2021-11-04 10:18:17,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:18:17,191 INFO L225 Difference]: With dead ends: 100282 [2021-11-04 10:18:17,191 INFO L226 Difference]: Without dead ends: 60917 [2021-11-04 10:18:17,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:18:17,252 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 2787 mSDsluCounter, 3722 mSDsCounter, 0 mSdLazyCounter, 7521 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15359.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2787 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 7532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.05ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 7521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17005.22ms IncrementalHoareTripleChecker+Time [2021-11-04 10:18:17,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2787 Valid, 17 Invalid, 7532 Unknown, 0 Unchecked, 18.05ms Time], IncrementalHoareTripleChecker [10 Valid, 7521 Invalid, 1 Unknown, 0 Unchecked, 17005.22ms Time] [2021-11-04 10:18:17,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60917 states. [2021-11-04 10:18:18,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60917 to 43778. [2021-11-04 10:18:18,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43778 states, 43684 states have (on average 1.2117022250709641) internal successors, (52932), 43750 states have internal predecessors, (52932), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:18:18,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43778 states to 43778 states and 52986 transitions. [2021-11-04 10:18:18,349 INFO L78 Accepts]: Start accepts. Automaton has 43778 states and 52986 transitions. Word has length 166 [2021-11-04 10:18:18,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:18:18,350 INFO L470 AbstractCegarLoop]: Abstraction has 43778 states and 52986 transitions. [2021-11-04 10:18:18,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:18:18,350 INFO L276 IsEmpty]: Start isEmpty. Operand 43778 states and 52986 transitions. [2021-11-04 10:18:18,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-04 10:18:18,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:18:18,354 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:18:18,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-04 10:18:18,354 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:18:18,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:18:18,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1236304212, now seen corresponding path program 1 times [2021-11-04 10:18:18,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:18:18,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756187150] [2021-11-04 10:18:18,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:18:18,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:18:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:18:18,535 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-04 10:18:18,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:18:18,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756187150] [2021-11-04 10:18:18,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756187150] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:18:18,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:18:18,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:18:18,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850362462] [2021-11-04 10:18:18,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:18:18,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:18:18,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:18:18,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:18:18,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:18:18,537 INFO L87 Difference]: Start difference. First operand 43778 states and 52986 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 10:18:20,591 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:18:24,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:18:41,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:18:41,623 INFO L93 Difference]: Finished difference Result 96919 states and 117624 transitions. [2021-11-04 10:18:41,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:18:41,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 166 [2021-11-04 10:18:41,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:18:41,722 INFO L225 Difference]: With dead ends: 96919 [2021-11-04 10:18:41,723 INFO L226 Difference]: Without dead ends: 56392 [2021-11-04 10:18:41,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:18:41,774 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 3496 mSDsluCounter, 3723 mSDsCounter, 0 mSdLazyCounter, 11041 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19389.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3496 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.31ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11041 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21238.54ms IncrementalHoareTripleChecker+Time [2021-11-04 10:18:41,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3496 Valid, 18 Invalid, 11049 Unknown, 0 Unchecked, 29.31ms Time], IncrementalHoareTripleChecker [6 Valid, 11041 Invalid, 2 Unknown, 0 Unchecked, 21238.54ms Time] [2021-11-04 10:18:41,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56392 states. [2021-11-04 10:18:42,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56392 to 44945. [2021-11-04 10:18:42,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44945 states, 44851 states have (on average 1.2091369200240798) internal successors, (54231), 44917 states have internal predecessors, (54231), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:18:42,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44945 states to 44945 states and 54285 transitions. [2021-11-04 10:18:42,833 INFO L78 Accepts]: Start accepts. Automaton has 44945 states and 54285 transitions. Word has length 166 [2021-11-04 10:18:42,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:18:42,834 INFO L470 AbstractCegarLoop]: Abstraction has 44945 states and 54285 transitions. [2021-11-04 10:18:42,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 10:18:42,834 INFO L276 IsEmpty]: Start isEmpty. Operand 44945 states and 54285 transitions. [2021-11-04 10:18:42,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-04 10:18:42,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:18:42,837 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:18:42,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-04 10:18:42,837 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:18:42,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:18:42,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1372502677, now seen corresponding path program 1 times [2021-11-04 10:18:42,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:18:42,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190658961] [2021-11-04 10:18:42,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:18:42,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:18:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:18:43,022 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-04 10:18:43,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:18:43,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190658961] [2021-11-04 10:18:43,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190658961] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:18:43,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:18:43,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:18:43,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38134268] [2021-11-04 10:18:43,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:18:43,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:18:43,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:18:43,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:18:43,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:18:43,024 INFO L87 Difference]: Start difference. First operand 44945 states and 54285 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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 10:18:44,471 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:18:46,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:18:49,570 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:19:01,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:19:01,189 INFO L93 Difference]: Finished difference Result 44945 states and 54285 transitions. [2021-11-04 10:19:01,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:19:01,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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 167 [2021-11-04 10:19:01,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:19:01,270 INFO L225 Difference]: With dead ends: 44945 [2021-11-04 10:19:01,270 INFO L226 Difference]: Without dead ends: 44939 [2021-11-04 10:19:01,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.73ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:19:01,289 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3657 mSDsluCounter, 3686 mSDsCounter, 0 mSdLazyCounter, 7527 mSolverCounterSat, 34 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15573.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3657 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.12ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 7527 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17032.03ms IncrementalHoareTripleChecker+Time [2021-11-04 10:19:01,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3657 Valid, 12 Invalid, 7563 Unknown, 0 Unchecked, 26.12ms Time], IncrementalHoareTripleChecker [34 Valid, 7527 Invalid, 2 Unknown, 0 Unchecked, 17032.03ms Time] [2021-11-04 10:19:01,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44939 states. [2021-11-04 10:19:02,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44939 to 44939. [2021-11-04 10:19:02,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44939 states, 44848 states have (on average 1.209017124509454) internal successors, (54222), 44911 states have internal predecessors, (54222), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:19:02,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44939 states to 44939 states and 54276 transitions. [2021-11-04 10:19:02,436 INFO L78 Accepts]: Start accepts. Automaton has 44939 states and 54276 transitions. Word has length 167 [2021-11-04 10:19:02,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:19:02,436 INFO L470 AbstractCegarLoop]: Abstraction has 44939 states and 54276 transitions. [2021-11-04 10:19:02,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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 10:19:02,437 INFO L276 IsEmpty]: Start isEmpty. Operand 44939 states and 54276 transitions. [2021-11-04 10:19:02,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-04 10:19:02,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:19:02,440 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:19:02,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-04 10:19:02,441 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:19:02,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:19:02,441 INFO L85 PathProgramCache]: Analyzing trace with hash 420332568, now seen corresponding path program 1 times [2021-11-04 10:19:02,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:19:02,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334873649] [2021-11-04 10:19:02,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:19:02,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:19:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:19:02,665 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-04 10:19:02,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:19:02,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334873649] [2021-11-04 10:19:02,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334873649] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:19:02,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:19:02,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:19:02,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942590613] [2021-11-04 10:19:02,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:19:02,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:19:02,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:19:02,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:19:02,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:19:02,667 INFO L87 Difference]: Start difference. First operand 44939 states and 54276 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 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 10:19:04,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:19:07,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:19:17,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:19:17,906 INFO L93 Difference]: Finished difference Result 44939 states and 54276 transitions. [2021-11-04 10:19:17,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:19:17,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 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 169 [2021-11-04 10:19:17,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:19:17,984 INFO L225 Difference]: With dead ends: 44939 [2021-11-04 10:19:17,985 INFO L226 Difference]: Without dead ends: 44933 [2021-11-04 10:19:18,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.42ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:19:18,002 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3646 mSDsluCounter, 3683 mSDsCounter, 0 mSdLazyCounter, 7516 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12770.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3646 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.48ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 7516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14041.85ms IncrementalHoareTripleChecker+Time [2021-11-04 10:19:18,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3646 Valid, 12 Invalid, 7554 Unknown, 0 Unchecked, 20.48ms Time], IncrementalHoareTripleChecker [37 Valid, 7516 Invalid, 1 Unknown, 0 Unchecked, 14041.85ms Time] [2021-11-04 10:19:18,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44933 states. [2021-11-04 10:19:18,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44933 to 44933. [2021-11-04 10:19:19,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44933 states, 44845 states have (on average 1.2088973129668859) internal successors, (54213), 44905 states have internal predecessors, (54213), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:19:19,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44933 states to 44933 states and 54267 transitions. [2021-11-04 10:19:19,112 INFO L78 Accepts]: Start accepts. Automaton has 44933 states and 54267 transitions. Word has length 169 [2021-11-04 10:19:19,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:19:19,113 INFO L470 AbstractCegarLoop]: Abstraction has 44933 states and 54267 transitions. [2021-11-04 10:19:19,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 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 10:19:19,113 INFO L276 IsEmpty]: Start isEmpty. Operand 44933 states and 54267 transitions. [2021-11-04 10:19:19,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-04 10:19:19,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:19:19,117 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:19:19,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-04 10:19:19,117 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:19:19,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:19:19,118 INFO L85 PathProgramCache]: Analyzing trace with hash 212892187, now seen corresponding path program 1 times [2021-11-04 10:19:19,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:19:19,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26147593] [2021-11-04 10:19:19,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:19:19,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:19:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:19:19,476 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-04 10:19:19,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:19:19,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26147593] [2021-11-04 10:19:19,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26147593] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:19:19,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:19:19,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:19:19,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129161344] [2021-11-04 10:19:19,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:19:19,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:19:19,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:19:19,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:19:19,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:19:19,478 INFO L87 Difference]: Start difference. First operand 44933 states and 54267 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 10:19:21,536 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:19:24,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:19:35,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:19:35,513 INFO L93 Difference]: Finished difference Result 44933 states and 54267 transitions. [2021-11-04 10:19:35,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:19:35,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 171 [2021-11-04 10:19:35,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:19:35,581 INFO L225 Difference]: With dead ends: 44933 [2021-11-04 10:19:35,581 INFO L226 Difference]: Without dead ends: 44927 [2021-11-04 10:19:35,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.95ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:19:35,600 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3638 mSDsluCounter, 3679 mSDsCounter, 0 mSdLazyCounter, 7502 mSolverCounterSat, 37 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13544.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3638 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.60ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 7502 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14864.15ms IncrementalHoareTripleChecker+Time [2021-11-04 10:19:35,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3638 Valid, 12 Invalid, 7541 Unknown, 0 Unchecked, 25.60ms Time], IncrementalHoareTripleChecker [37 Valid, 7502 Invalid, 2 Unknown, 0 Unchecked, 14864.15ms Time] [2021-11-04 10:19:35,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44927 states. [2021-11-04 10:19:36,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44927 to 44927. [2021-11-04 10:19:36,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44927 states, 44842 states have (on average 1.208777485393158) internal successors, (54204), 44899 states have internal predecessors, (54204), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:19:36,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44927 states to 44927 states and 54258 transitions. [2021-11-04 10:19:36,733 INFO L78 Accepts]: Start accepts. Automaton has 44927 states and 54258 transitions. Word has length 171 [2021-11-04 10:19:36,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:19:36,733 INFO L470 AbstractCegarLoop]: Abstraction has 44927 states and 54258 transitions. [2021-11-04 10:19:36,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 10:19:36,734 INFO L276 IsEmpty]: Start isEmpty. Operand 44927 states and 54258 transitions. [2021-11-04 10:19:36,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-04 10:19:36,738 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:19:36,738 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:19:36,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-04 10:19:36,738 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:19:36,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:19:36,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1744428514, now seen corresponding path program 1 times [2021-11-04 10:19:36,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:19:36,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769425629] [2021-11-04 10:19:36,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:19:36,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:19:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:19:36,912 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-04 10:19:36,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:19:36,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769425629] [2021-11-04 10:19:36,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769425629] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:19:36,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:19:36,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:19:36,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393693617] [2021-11-04 10:19:36,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:19:36,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:19:36,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:19:36,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:19:36,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:19:36,914 INFO L87 Difference]: Start difference. First operand 44927 states and 54258 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:19:38,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:19:41,177 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:19:44,003 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:19:59,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:19:59,302 INFO L93 Difference]: Finished difference Result 103289 states and 124776 transitions. [2021-11-04 10:19:59,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:19:59,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2021-11-04 10:19:59,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:19:59,407 INFO L225 Difference]: With dead ends: 103289 [2021-11-04 10:19:59,407 INFO L226 Difference]: Without dead ends: 61613 [2021-11-04 10:19:59,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.43ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:19:59,472 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 2555 mSDsluCounter, 3718 mSDsCounter, 0 mSdLazyCounter, 7765 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18820.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2555 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 7775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.12ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 7765 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20582.32ms IncrementalHoareTripleChecker+Time [2021-11-04 10:19:59,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2555 Valid, 15 Invalid, 7775 Unknown, 0 Unchecked, 19.12ms Time], IncrementalHoareTripleChecker [8 Valid, 7765 Invalid, 2 Unknown, 0 Unchecked, 20582.32ms Time] [2021-11-04 10:19:59,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61613 states. [2021-11-04 10:20:00,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61613 to 48380. [2021-11-04 10:20:00,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48380 states, 48295 states have (on average 1.2020499016461332) internal successors, (58053), 48352 states have internal predecessors, (58053), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:20:01,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48380 states to 48380 states and 58107 transitions. [2021-11-04 10:20:01,017 INFO L78 Accepts]: Start accepts. Automaton has 48380 states and 58107 transitions. Word has length 172 [2021-11-04 10:20:01,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:20:01,017 INFO L470 AbstractCegarLoop]: Abstraction has 48380 states and 58107 transitions. [2021-11-04 10:20:01,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:20:01,017 INFO L276 IsEmpty]: Start isEmpty. Operand 48380 states and 58107 transitions. [2021-11-04 10:20:01,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-04 10:20:01,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:20:01,023 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:20:01,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-04 10:20:01,023 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:20:01,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:20:01,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1568818018, now seen corresponding path program 1 times [2021-11-04 10:20:01,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:20:01,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877454271] [2021-11-04 10:20:01,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:20:01,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:20:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:20:01,247 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-04 10:20:01,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:20:01,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877454271] [2021-11-04 10:20:01,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877454271] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:20:01,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:20:01,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:20:01,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961182766] [2021-11-04 10:20:01,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:20:01,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:20:01,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:20:01,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:20:01,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:20:01,249 INFO L87 Difference]: Start difference. First operand 48380 states and 58107 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 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 10:20:02,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:20:04,065 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:20:07,415 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:20:19,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:20:19,557 INFO L93 Difference]: Finished difference Result 48380 states and 58107 transitions. [2021-11-04 10:20:19,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:20:19,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 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 173 [2021-11-04 10:20:19,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:20:19,644 INFO L225 Difference]: With dead ends: 48380 [2021-11-04 10:20:19,644 INFO L226 Difference]: Without dead ends: 48374 [2021-11-04 10:20:19,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.26ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:20:19,666 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3630 mSDsluCounter, 3677 mSDsCounter, 0 mSdLazyCounter, 7492 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15340.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3630 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.76ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 7492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16944.04ms IncrementalHoareTripleChecker+Time [2021-11-04 10:20:19,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3630 Valid, 12 Invalid, 7530 Unknown, 0 Unchecked, 23.76ms Time], IncrementalHoareTripleChecker [37 Valid, 7492 Invalid, 1 Unknown, 0 Unchecked, 16944.04ms Time] [2021-11-04 10:20:19,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48374 states. [2021-11-04 10:20:20,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48374 to 48374. [2021-11-04 10:20:20,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48374 states, 48292 states have (on average 1.2019382092272013) internal successors, (58044), 48346 states have internal predecessors, (58044), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:20:21,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48374 states to 48374 states and 58098 transitions. [2021-11-04 10:20:21,002 INFO L78 Accepts]: Start accepts. Automaton has 48374 states and 58098 transitions. Word has length 173 [2021-11-04 10:20:21,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:20:21,002 INFO L470 AbstractCegarLoop]: Abstraction has 48374 states and 58098 transitions. [2021-11-04 10:20:21,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 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 10:20:21,002 INFO L276 IsEmpty]: Start isEmpty. Operand 48374 states and 58098 transitions. [2021-11-04 10:20:21,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-04 10:20:21,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:20:21,007 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:20:21,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-04 10:20:21,007 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:20:21,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:20:21,007 INFO L85 PathProgramCache]: Analyzing trace with hash -100373599, now seen corresponding path program 1 times [2021-11-04 10:20:21,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:20:21,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729797023] [2021-11-04 10:20:21,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:20:21,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:20:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:20:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-04 10:20:21,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:20:21,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729797023] [2021-11-04 10:20:21,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729797023] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:20:21,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:20:21,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:20:21,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975906607] [2021-11-04 10:20:21,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:20:21,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:20:21,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:20:21,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:20:21,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:20:21,182 INFO L87 Difference]: Start difference. First operand 48374 states and 58098 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 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 10:20:22,611 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:20:24,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:20:27,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:20:38,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:20:38,622 INFO L93 Difference]: Finished difference Result 48374 states and 58098 transitions. [2021-11-04 10:20:38,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:20:38,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 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 175 [2021-11-04 10:20:38,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:20:38,689 INFO L225 Difference]: With dead ends: 48374 [2021-11-04 10:20:38,689 INFO L226 Difference]: Without dead ends: 48368 [2021-11-04 10:20:38,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.21ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:20:38,704 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3622 mSDsluCounter, 3674 mSDsCounter, 0 mSdLazyCounter, 7480 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14557.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3622 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.67ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 7480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15987.30ms IncrementalHoareTripleChecker+Time [2021-11-04 10:20:38,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3622 Valid, 12 Invalid, 7518 Unknown, 0 Unchecked, 24.67ms Time], IncrementalHoareTripleChecker [37 Valid, 7480 Invalid, 1 Unknown, 0 Unchecked, 15987.30ms Time] [2021-11-04 10:20:38,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48368 states. [2021-11-04 10:20:39,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48368 to 48368. [2021-11-04 10:20:39,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48368 states, 48289 states have (on average 1.201826502930274) internal successors, (58035), 48340 states have internal predecessors, (58035), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:20:39,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48368 states to 48368 states and 58089 transitions. [2021-11-04 10:20:39,921 INFO L78 Accepts]: Start accepts. Automaton has 48368 states and 58089 transitions. Word has length 175 [2021-11-04 10:20:39,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:20:39,921 INFO L470 AbstractCegarLoop]: Abstraction has 48368 states and 58089 transitions. [2021-11-04 10:20:39,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 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 10:20:39,922 INFO L276 IsEmpty]: Start isEmpty. Operand 48368 states and 58089 transitions. [2021-11-04 10:20:39,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-04 10:20:39,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:20:39,926 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:20:39,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-04 10:20:39,926 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:20:39,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:20:39,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1969527004, now seen corresponding path program 1 times [2021-11-04 10:20:39,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:20:39,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031927228] [2021-11-04 10:20:39,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:20:39,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:20:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:20:40,113 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-04 10:20:40,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:20:40,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031927228] [2021-11-04 10:20:40,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031927228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:20:40,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:20:40,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:20:40,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184954652] [2021-11-04 10:20:40,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:20:40,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:20:40,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:20:40,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:20:40,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:20:40,115 INFO L87 Difference]: Start difference. First operand 48368 states and 58089 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:20:41,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:20:44,927 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:20:55,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:20:55,299 INFO L93 Difference]: Finished difference Result 48368 states and 58089 transitions. [2021-11-04 10:20:55,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:20:55,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2021-11-04 10:20:55,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:20:55,368 INFO L225 Difference]: With dead ends: 48368 [2021-11-04 10:20:55,369 INFO L226 Difference]: Without dead ends: 48362 [2021-11-04 10:20:55,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.23ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:20:55,387 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3614 mSDsluCounter, 3671 mSDsCounter, 0 mSdLazyCounter, 7468 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12350.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.00ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 7468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13686.53ms IncrementalHoareTripleChecker+Time [2021-11-04 10:20:55,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3614 Valid, 12 Invalid, 7506 Unknown, 0 Unchecked, 20.00ms Time], IncrementalHoareTripleChecker [37 Valid, 7468 Invalid, 1 Unknown, 0 Unchecked, 13686.53ms Time] [2021-11-04 10:20:55,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48362 states. [2021-11-04 10:20:56,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48362 to 48362. [2021-11-04 10:20:56,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48362 states, 48286 states have (on average 1.2017147827527648) internal successors, (58026), 48334 states have internal predecessors, (58026), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:20:56,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48362 states to 48362 states and 58080 transitions. [2021-11-04 10:20:56,850 INFO L78 Accepts]: Start accepts. Automaton has 48362 states and 58080 transitions. Word has length 177 [2021-11-04 10:20:56,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:20:56,850 INFO L470 AbstractCegarLoop]: Abstraction has 48362 states and 58080 transitions. [2021-11-04 10:20:56,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:20:56,851 INFO L276 IsEmpty]: Start isEmpty. Operand 48362 states and 58080 transitions. [2021-11-04 10:20:56,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-04 10:20:56,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:20:56,856 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:20:56,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-04 10:20:56,856 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:20:56,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:20:56,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1009439232, now seen corresponding path program 1 times [2021-11-04 10:20:56,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:20:56,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599758347] [2021-11-04 10:20:56,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:20:56,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:20:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:20:57,103 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-11-04 10:20:57,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:20:57,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599758347] [2021-11-04 10:20:57,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599758347] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:20:57,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:20:57,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:20:57,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812076676] [2021-11-04 10:20:57,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:20:57,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:20:57,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:20:57,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:20:57,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:20:57,105 INFO L87 Difference]: Start difference. First operand 48362 states and 58080 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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 10:20:58,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:21:02,427 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:21:18,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:21:18,842 INFO L93 Difference]: Finished difference Result 66304 states and 80090 transitions. [2021-11-04 10:21:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:21:18,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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 179 [2021-11-04 10:21:18,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:21:18,947 INFO L225 Difference]: With dead ends: 66304 [2021-11-04 10:21:18,947 INFO L226 Difference]: Without dead ends: 66294 [2021-11-04 10:21:18,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.49ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:21:18,972 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 4190 mSDsluCounter, 6105 mSDsCounter, 0 mSdLazyCounter, 11096 mSolverCounterSat, 36 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17910.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4190 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 11133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.63ms SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 11096 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19668.58ms IncrementalHoareTripleChecker+Time [2021-11-04 10:21:18,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4190 Valid, 23 Invalid, 11133 Unknown, 0 Unchecked, 29.63ms Time], IncrementalHoareTripleChecker [36 Valid, 11096 Invalid, 1 Unknown, 0 Unchecked, 19668.58ms Time] [2021-11-04 10:21:19,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66294 states. [2021-11-04 10:21:20,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66294 to 48524. [2021-11-04 10:21:20,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48524 states, 48448 states have (on average 1.2013499009247028) internal successors, (58203), 48496 states have internal predecessors, (58203), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:21:20,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48524 states to 48524 states and 58257 transitions. [2021-11-04 10:21:20,598 INFO L78 Accepts]: Start accepts. Automaton has 48524 states and 58257 transitions. Word has length 179 [2021-11-04 10:21:20,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:21:20,598 INFO L470 AbstractCegarLoop]: Abstraction has 48524 states and 58257 transitions. [2021-11-04 10:21:20,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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 10:21:20,598 INFO L276 IsEmpty]: Start isEmpty. Operand 48524 states and 58257 transitions. [2021-11-04 10:21:20,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-04 10:21:20,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:21:20,615 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:21:20,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-04 10:21:20,616 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:21:20,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:21:20,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1365348135, now seen corresponding path program 1 times [2021-11-04 10:21:20,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:21:20,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146382625] [2021-11-04 10:21:20,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:21:20,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:21:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:21:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-04 10:21:20,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:21:20,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146382625] [2021-11-04 10:21:20,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146382625] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:21:20,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:21:20,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:21:20,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270513583] [2021-11-04 10:21:20,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:21:20,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:21:20,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:21:20,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:21:20,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:21:20,801 INFO L87 Difference]: Start difference. First operand 48524 states and 58257 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 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 10:21:22,856 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:21:25,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:21:37,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:21:37,865 INFO L93 Difference]: Finished difference Result 48524 states and 58257 transitions. [2021-11-04 10:21:37,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:21:37,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 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 179 [2021-11-04 10:21:37,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:21:37,951 INFO L225 Difference]: With dead ends: 48524 [2021-11-04 10:21:37,951 INFO L226 Difference]: Without dead ends: 48518 [2021-11-04 10:21:37,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.03ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:21:37,969 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3606 mSDsluCounter, 3667 mSDsCounter, 0 mSdLazyCounter, 7454 mSolverCounterSat, 37 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14291.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3606 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.67ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 7454 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15575.58ms IncrementalHoareTripleChecker+Time [2021-11-04 10:21:37,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3606 Valid, 12 Invalid, 7493 Unknown, 0 Unchecked, 22.67ms Time], IncrementalHoareTripleChecker [37 Valid, 7454 Invalid, 2 Unknown, 0 Unchecked, 15575.58ms Time] [2021-11-04 10:21:38,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48518 states. [2021-11-04 10:21:39,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48518 to 48518. [2021-11-04 10:21:39,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48518 states, 48445 states have (on average 1.2012385179069047) internal successors, (58194), 48490 states have internal predecessors, (58194), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:21:39,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48518 states to 48518 states and 58248 transitions. [2021-11-04 10:21:39,634 INFO L78 Accepts]: Start accepts. Automaton has 48518 states and 58248 transitions. Word has length 179 [2021-11-04 10:21:39,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:21:39,634 INFO L470 AbstractCegarLoop]: Abstraction has 48518 states and 58248 transitions. [2021-11-04 10:21:39,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 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 10:21:39,634 INFO L276 IsEmpty]: Start isEmpty. Operand 48518 states and 58248 transitions. [2021-11-04 10:21:39,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-04 10:21:39,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:21:39,639 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:21:39,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-04 10:21:39,639 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:21:39,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:21:39,640 INFO L85 PathProgramCache]: Analyzing trace with hash 2134754218, now seen corresponding path program 1 times [2021-11-04 10:21:39,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:21:39,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974572482] [2021-11-04 10:21:39,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:21:39,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:21:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:21:39,836 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-04 10:21:39,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:21:39,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974572482] [2021-11-04 10:21:39,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974572482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:21:39,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:21:39,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:21:39,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012601950] [2021-11-04 10:21:39,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:21:39,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:21:39,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:21:39,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:21:39,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:21:39,838 INFO L87 Difference]: Start difference. First operand 48518 states and 58248 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 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 10:21:41,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:21:45,126 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:21:55,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:21:55,881 INFO L93 Difference]: Finished difference Result 48518 states and 58248 transitions. [2021-11-04 10:21:55,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:21:55,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 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 181 [2021-11-04 10:21:55,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:21:55,948 INFO L225 Difference]: With dead ends: 48518 [2021-11-04 10:21:55,948 INFO L226 Difference]: Without dead ends: 48512 [2021-11-04 10:21:55,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.93ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:21:55,961 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3598 mSDsluCounter, 3664 mSDsCounter, 0 mSdLazyCounter, 7442 mSolverCounterSat, 37 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13184.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3598 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.65ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 7442 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14271.89ms IncrementalHoareTripleChecker+Time [2021-11-04 10:21:55,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3598 Valid, 12 Invalid, 7481 Unknown, 0 Unchecked, 20.65ms Time], IncrementalHoareTripleChecker [37 Valid, 7442 Invalid, 2 Unknown, 0 Unchecked, 14271.89ms Time] [2021-11-04 10:21:55,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48512 states. [2021-11-04 10:21:57,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48512 to 48512. [2021-11-04 10:21:57,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48512 states, 48442 states have (on average 1.2011271210932661) internal successors, (58185), 48484 states have internal predecessors, (58185), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:21:57,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48512 states to 48512 states and 58239 transitions. [2021-11-04 10:21:57,599 INFO L78 Accepts]: Start accepts. Automaton has 48512 states and 58239 transitions. Word has length 181 [2021-11-04 10:21:57,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:21:57,599 INFO L470 AbstractCegarLoop]: Abstraction has 48512 states and 58239 transitions. [2021-11-04 10:21:57,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 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 10:21:57,600 INFO L276 IsEmpty]: Start isEmpty. Operand 48512 states and 58239 transitions. [2021-11-04 10:21:57,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-04 10:21:57,605 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:21:57,605 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:21:57,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-04 10:21:57,605 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:21:57,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:21:57,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1495341907, now seen corresponding path program 1 times [2021-11-04 10:21:57,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:21:57,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127090684] [2021-11-04 10:21:57,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:21:57,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:21:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:21:57,817 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-04 10:21:57,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:21:57,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127090684] [2021-11-04 10:21:57,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127090684] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:21:57,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:21:57,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:21:57,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084606831] [2021-11-04 10:21:57,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:21:57,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:21:57,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:21:57,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:21:57,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:21:57,819 INFO L87 Difference]: Start difference. First operand 48512 states and 58239 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 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 10:21:59,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:22:03,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:22:20,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:22:20,044 INFO L93 Difference]: Finished difference Result 49818 states and 59639 transitions. [2021-11-04 10:22:20,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:22:20,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 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 183 [2021-11-04 10:22:20,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:22:20,122 INFO L225 Difference]: With dead ends: 49818 [2021-11-04 10:22:20,122 INFO L226 Difference]: Without dead ends: 49812 [2021-11-04 10:22:20,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.87ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:22:20,142 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 1601 mSDsluCounter, 6039 mSDsCounter, 0 mSdLazyCounter, 10087 mSolverCounterSat, 49 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18638.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 10138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.20ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 10087 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20152.03ms IncrementalHoareTripleChecker+Time [2021-11-04 10:22:20,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1601 Valid, 17 Invalid, 10138 Unknown, 0 Unchecked, 31.20ms Time], IncrementalHoareTripleChecker [49 Valid, 10087 Invalid, 2 Unknown, 0 Unchecked, 20152.03ms Time] [2021-11-04 10:22:20,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49812 states. [2021-11-04 10:22:21,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49812 to 48318. [2021-11-04 10:22:21,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48318 states, 48251 states have (on average 1.2013637023066879) internal successors, (57967), 48290 states have internal predecessors, (57967), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:22:21,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48318 states to 48318 states and 58021 transitions. [2021-11-04 10:22:21,904 INFO L78 Accepts]: Start accepts. Automaton has 48318 states and 58021 transitions. Word has length 183 [2021-11-04 10:22:21,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:22:21,905 INFO L470 AbstractCegarLoop]: Abstraction has 48318 states and 58021 transitions. [2021-11-04 10:22:21,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 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 10:22:21,905 INFO L276 IsEmpty]: Start isEmpty. Operand 48318 states and 58021 transitions. [2021-11-04 10:22:21,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-04 10:22:21,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:22:21,910 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:22:21,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-04 10:22:21,910 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:22:21,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:22:21,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1790693936, now seen corresponding path program 1 times [2021-11-04 10:22:21,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:22:21,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659727727] [2021-11-04 10:22:21,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:22:21,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:22:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:22:22,086 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-04 10:22:22,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:22:22,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659727727] [2021-11-04 10:22:22,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659727727] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:22:22,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:22:22,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:22:22,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951150616] [2021-11-04 10:22:22,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:22:22,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:22:22,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:22:22,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:22:22,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:22:22,089 INFO L87 Difference]: Start difference. First operand 48318 states and 58021 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 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 10:22:24,400 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:22:27,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:22:40,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:22:40,124 INFO L93 Difference]: Finished difference Result 48318 states and 58021 transitions. [2021-11-04 10:22:40,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:22:40,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 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 185 [2021-11-04 10:22:40,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:22:40,200 INFO L225 Difference]: With dead ends: 48318 [2021-11-04 10:22:40,200 INFO L226 Difference]: Without dead ends: 48312 [2021-11-04 10:22:40,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.99ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:22:40,217 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3582 mSDsluCounter, 3659 mSDsCounter, 0 mSdLazyCounter, 7420 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14398.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3582 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.44ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 7420 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15905.93ms IncrementalHoareTripleChecker+Time [2021-11-04 10:22:40,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3582 Valid, 12 Invalid, 7458 Unknown, 0 Unchecked, 25.44ms Time], IncrementalHoareTripleChecker [37 Valid, 7420 Invalid, 1 Unknown, 0 Unchecked, 15905.93ms Time] [2021-11-04 10:22:40,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48312 states. [2021-11-04 10:22:41,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48312 to 48312. [2021-11-04 10:22:41,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48312 states, 48248 states have (on average 1.201314044105455) internal successors, (57961), 48284 states have internal predecessors, (57961), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:22:42,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48312 states to 48312 states and 58015 transitions. [2021-11-04 10:22:42,082 INFO L78 Accepts]: Start accepts. Automaton has 48312 states and 58015 transitions. Word has length 185 [2021-11-04 10:22:42,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:22:42,083 INFO L470 AbstractCegarLoop]: Abstraction has 48312 states and 58015 transitions. [2021-11-04 10:22:42,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 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 10:22:42,083 INFO L276 IsEmpty]: Start isEmpty. Operand 48312 states and 58015 transitions. [2021-11-04 10:22:42,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-04 10:22:42,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:22:42,089 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:22:42,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-04 10:22:42,089 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:22:42,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:22:42,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1424790477, now seen corresponding path program 1 times [2021-11-04 10:22:42,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:22:42,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572353742] [2021-11-04 10:22:42,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:22:42,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:22:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:22:42,375 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-04 10:22:42,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:22:42,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572353742] [2021-11-04 10:22:42,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572353742] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:22:42,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:22:42,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:22:42,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060195444] [2021-11-04 10:22:42,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:22:42,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:22:42,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:22:42,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:22:42,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:22:42,377 INFO L87 Difference]: Start difference. First operand 48312 states and 58015 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 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 10:22:45,346 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:22:48,177 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:22:59,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:22:59,008 INFO L93 Difference]: Finished difference Result 48312 states and 58015 transitions. [2021-11-04 10:22:59,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:22:59,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 187 [2021-11-04 10:22:59,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:22:59,073 INFO L225 Difference]: With dead ends: 48312 [2021-11-04 10:22:59,073 INFO L226 Difference]: Without dead ends: 48306 [2021-11-04 10:22:59,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.94ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:22:59,088 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3574 mSDsluCounter, 3656 mSDsCounter, 0 mSdLazyCounter, 7407 mSolverCounterSat, 37 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13336.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3574 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.65ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 7407 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14668.73ms IncrementalHoareTripleChecker+Time [2021-11-04 10:22:59,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3574 Valid, 12 Invalid, 7446 Unknown, 0 Unchecked, 18.65ms Time], IncrementalHoareTripleChecker [37 Valid, 7407 Invalid, 2 Unknown, 0 Unchecked, 14668.73ms Time] [2021-11-04 10:22:59,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48306 states. [2021-11-04 10:23:00,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48306 to 48306. [2021-11-04 10:23:00,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48306 states, 48245 states have (on average 1.2012643797284692) internal successors, (57955), 48278 states have internal predecessors, (57955), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:23:01,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48306 states to 48306 states and 58009 transitions. [2021-11-04 10:23:01,021 INFO L78 Accepts]: Start accepts. Automaton has 48306 states and 58009 transitions. Word has length 187 [2021-11-04 10:23:01,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:23:01,021 INFO L470 AbstractCegarLoop]: Abstraction has 48306 states and 58009 transitions. [2021-11-04 10:23:01,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 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 10:23:01,021 INFO L276 IsEmpty]: Start isEmpty. Operand 48306 states and 58009 transitions. [2021-11-04 10:23:01,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-04 10:23:01,031 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:23:01,031 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:23:01,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-04 10:23:01,032 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:23:01,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:23:01,036 INFO L85 PathProgramCache]: Analyzing trace with hash 871142070, now seen corresponding path program 1 times [2021-11-04 10:23:01,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:23:01,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437824776] [2021-11-04 10:23:01,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:23:01,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:23:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:23:01,249 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-04 10:23:01,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:23:01,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437824776] [2021-11-04 10:23:01,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437824776] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:23:01,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:23:01,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:23:01,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136661539] [2021-11-04 10:23:01,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:23:01,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:23:01,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:23:01,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:23:01,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:23:01,257 INFO L87 Difference]: Start difference. First operand 48306 states and 58009 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:23:03,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:06,117 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:15,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:23:15,962 INFO L93 Difference]: Finished difference Result 48306 states and 58009 transitions. [2021-11-04 10:23:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 10:23:15,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 189 [2021-11-04 10:23:15,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:23:16,046 INFO L225 Difference]: With dead ends: 48306 [2021-11-04 10:23:16,046 INFO L226 Difference]: Without dead ends: 48094 [2021-11-04 10:23:16,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.96ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:23:16,063 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3563 mSDsluCounter, 3652 mSDsCounter, 0 mSdLazyCounter, 7394 mSolverCounterSat, 40 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11759.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3563 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.85ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 7394 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12758.39ms IncrementalHoareTripleChecker+Time [2021-11-04 10:23:16,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3563 Valid, 12 Invalid, 7436 Unknown, 0 Unchecked, 15.85ms Time], IncrementalHoareTripleChecker [40 Valid, 7394 Invalid, 2 Unknown, 0 Unchecked, 12758.39ms Time] [2021-11-04 10:23:16,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48094 states. [2021-11-04 10:23:17,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48094 to 44961. [2021-11-04 10:23:17,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44961 states, 44903 states have (on average 1.199518963098234) internal successors, (53862), 44933 states have internal predecessors, (53862), 18 states have call successors, (18), 12 states have call predecessors, (18), 18 states have return successors, (36), 24 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-04 10:23:17,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44961 states to 44961 states and 53916 transitions. [2021-11-04 10:23:17,914 INFO L78 Accepts]: Start accepts. Automaton has 44961 states and 53916 transitions. Word has length 189 [2021-11-04 10:23:17,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:23:17,915 INFO L470 AbstractCegarLoop]: Abstraction has 44961 states and 53916 transitions. [2021-11-04 10:23:17,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:23:17,915 INFO L276 IsEmpty]: Start isEmpty. Operand 44961 states and 53916 transitions. [2021-11-04 10:23:17,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-04 10:23:17,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:23:17,920 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:23:17,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-04 10:23:17,920 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [axnet_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, axnet_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-04 10:23:17,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:23:17,921 INFO L85 PathProgramCache]: Analyzing trace with hash -656338726, now seen corresponding path program 1 times [2021-11-04 10:23:17,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:23:17,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85950661] [2021-11-04 10:23:17,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:23:17,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:23:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:23:18,104 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-04 10:23:18,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:23:18,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85950661] [2021-11-04 10:23:18,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85950661] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:23:18,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:23:18,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 10:23:18,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566189824] [2021-11-04 10:23:18,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:23:18,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:23:18,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:23:18,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:23:18,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:23:18,107 INFO L87 Difference]: Start difference. First operand 44961 states and 53916 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 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 10:23:19,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:21,638 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:23,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:26,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:58,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:23:58,244 INFO L93 Difference]: Finished difference Result 191957 states and 232961 transitions. [2021-11-04 10:23:58,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:23:58,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2021-11-04 10:23:58,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:23:58,543 INFO L225 Difference]: With dead ends: 191957 [2021-11-04 10:23:58,543 INFO L226 Difference]: Without dead ends: 147114 [2021-11-04 10:23:58,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.88ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:23:58,629 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 8934 mSDsluCounter, 11741 mSDsCounter, 0 mSdLazyCounter, 17604 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30189.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8936 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 17609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 55.96ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17604 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33150.08ms IncrementalHoareTripleChecker+Time [2021-11-04 10:23:58,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8936 Valid, 26 Invalid, 17609 Unknown, 0 Unchecked, 55.96ms Time], IncrementalHoareTripleChecker [3 Valid, 17604 Invalid, 2 Unknown, 0 Unchecked, 33150.08ms Time] [2021-11-04 10:23:58,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147114 states. Killed by 15