./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 19525e6f83ed492183d9a21eaa90e9685989ff90c55473d8827091d7561f2601 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 12:11:01,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 12:11:01,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 12:11:02,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 12:11:02,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 12:11:02,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 12:11:02,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 12:11:02,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 12:11:02,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 12:11:02,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 12:11:02,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 12:11:02,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 12:11:02,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 12:11:02,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 12:11:02,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 12:11:02,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 12:11:02,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 12:11:02,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 12:11:02,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 12:11:02,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 12:11:02,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 12:11:02,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 12:11:02,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 12:11:02,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 12:11:02,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 12:11:02,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 12:11:02,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 12:11:02,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 12:11:02,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 12:11:02,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 12:11:02,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 12:11:02,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 12:11:02,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 12:11:02,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 12:11:02,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 12:11:02,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 12:11:02,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 12:11:02,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 12:11:02,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 12:11:02,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 12:11:02,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 12:11:02,079 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 12:11:02,115 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 12:11:02,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 12:11:02,116 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 12:11:02,116 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 12:11:02,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 12:11:02,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 12:11:02,118 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 12:11:02,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 12:11:02,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 12:11:02,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 12:11:02,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 12:11:02,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 12:11:02,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 12:11:02,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 12:11:02,120 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 12:11:02,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 12:11:02,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 12:11:02,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 12:11:02,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 12:11:02,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:11:02,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 12:11:02,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 12:11:02,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 12:11:02,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 12:11:02,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 12:11:02,122 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 12:11:02,122 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 12:11:02,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 12:11:02,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 12:11:02,124 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19525e6f83ed492183d9a21eaa90e9685989ff90c55473d8827091d7561f2601 [2021-11-07 12:11:02,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 12:11:02,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 12:11:02,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 12:11:02,360 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 12:11:02,363 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 12:11:02,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2021-11-07 12:11:02,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf89e12a6/1da1de791b8e486aa962f36839c5de17/FLAGca6744429 [2021-11-07 12:11:03,101 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 12:11:03,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2021-11-07 12:11:03,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf89e12a6/1da1de791b8e486aa962f36839c5de17/FLAGca6744429 [2021-11-07 12:11:03,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf89e12a6/1da1de791b8e486aa962f36839c5de17 [2021-11-07 12:11:03,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 12:11:03,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 12:11:03,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 12:11:03,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 12:11:03,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 12:11:03,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:11:03" (1/1) ... [2021-11-07 12:11:03,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f5693cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:03, skipping insertion in model container [2021-11-07 12:11:03,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:11:03" (1/1) ... [2021-11-07 12:11:03,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 12:11:03,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 12:11:04,998 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i[265597,265610] [2021-11-07 12:11:05,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:11:05,147 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 12:11:05,519 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i[265597,265610] [2021-11-07 12:11:05,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:11:05,635 INFO L208 MainTranslator]: Completed translation [2021-11-07 12:11:05,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:05 WrapperNode [2021-11-07 12:11:05,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 12:11:05,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 12:11:05,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 12:11:05,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 12:11:05,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:05" (1/1) ... [2021-11-07 12:11:05,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:05" (1/1) ... [2021-11-07 12:11:08,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 12:11:08,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 12:11:08,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 12:11:08,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 12:11:08,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:05" (1/1) ... [2021-11-07 12:11:08,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:05" (1/1) ... [2021-11-07 12:11:08,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:05" (1/1) ... [2021-11-07 12:11:08,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:05" (1/1) ... [2021-11-07 12:11:10,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:05" (1/1) ... [2021-11-07 12:11:11,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:05" (1/1) ... [2021-11-07 12:11:11,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:05" (1/1) ... [2021-11-07 12:11:11,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 12:11:11,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 12:11:11,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 12:11:11,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 12:11:11,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:05" (1/1) ... [2021-11-07 12:11:11,889 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:11:11,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:11:11,908 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 12:11:11,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 12:11:11,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 12:11:11,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 12:11:11,953 INFO L130 BoogieDeclarations]: Found specification of procedure free_smi_msg_list [2021-11-07 12:11:11,954 INFO L138 BoogieDeclarations]: Found implementation of procedure free_smi_msg_list [2021-11-07 12:11:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 12:11:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 12:11:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-07 12:11:11,954 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-07 12:11:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 12:11:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 12:11:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 12:11:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 12:11:11,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 12:11:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure intf_free [2021-11-07 12:11:11,955 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_free [2021-11-07 12:11:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 12:11:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 12:11:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-07 12:11:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-07 12:11:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-07 12:11:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 12:11:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 12:11:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_smi_msg [2021-11-07 12:11:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_smi_msg [2021-11-07 12:11:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 12:11:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 12:11:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 12:11:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure clean_up_interface_data [2021-11-07 12:11:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_up_interface_data [2021-11-07 12:11:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 12:11:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure free_recv_msg_list [2021-11-07 12:11:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure free_recv_msg_list [2021-11-07 12:11:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 12:11:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2021-11-07 12:11:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2021-11-07 12:11:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 12:13:00,781 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 12:13:00,781 INFO L299 CfgBuilder]: Removed 11838 assume(true) statements. [2021-11-07 12:13:00,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:13:00 BoogieIcfgContainer [2021-11-07 12:13:00,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 12:13:00,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 12:13:00,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 12:13:00,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 12:13:00,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:11:03" (1/3) ... [2021-11-07 12:13:00,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4678a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:13:00, skipping insertion in model container [2021-11-07 12:13:00,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:11:05" (2/3) ... [2021-11-07 12:13:00,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4678a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:13:00, skipping insertion in model container [2021-11-07 12:13:00,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:13:00" (3/3) ... [2021-11-07 12:13:00,803 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2021-11-07 12:13:00,807 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 12:13:00,807 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-07 12:13:00,901 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 12:13:00,906 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 12:13:00,907 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-07 12:13:01,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 14304 states, 14100 states have (on average 1.4726241134751774) internal successors, (20764), 14151 states have internal predecessors, (20764), 184 states have call successors, (184), 9 states have call predecessors, (184), 9 states have return successors, (184), 180 states have call predecessors, (184), 184 states have call successors, (184) [2021-11-07 12:13:01,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 12:13:01,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:01,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:01,109 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 12:13:01,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:01,116 INFO L85 PathProgramCache]: Analyzing trace with hash 840024965, now seen corresponding path program 1 times [2021-11-07 12:13:01,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:01,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711098805] [2021-11-07 12:13:01,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:01,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:01,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:13:01,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:01,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711098805] [2021-11-07 12:13:01,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711098805] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:01,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:01,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:01,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042547159] [2021-11-07 12:13:01,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:01,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:01,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:01,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:01,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:01,772 INFO L87 Difference]: Start difference. First operand has 14304 states, 14100 states have (on average 1.4726241134751774) internal successors, (20764), 14151 states have internal predecessors, (20764), 184 states have call successors, (184), 9 states have call predecessors, (184), 9 states have return successors, (184), 180 states have call predecessors, (184), 184 states have call successors, (184) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:03,834 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:13:05,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:05,007 INFO L93 Difference]: Finished difference Result 42849 states and 63684 transitions. [2021-11-07 12:13:05,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:05,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2021-11-07 12:13:05,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:05,179 INFO L225 Difference]: With dead ends: 42849 [2021-11-07 12:13:05,179 INFO L226 Difference]: Without dead ends: 28544 [2021-11-07 12:13:05,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:05,238 INFO L933 BasicCegarLoop]: 21210 mSDtfsCounter, 20973 mSDsluCounter, 20997 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2065.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20973 SdHoareTripleChecker+Valid, 42207 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 87.64ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2176.69ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:05,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20973 Valid, 42207 Invalid, 15 Unknown, 0 Unchecked, 87.64ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2176.69ms Time] [2021-11-07 12:13:05,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28544 states. [2021-11-07 12:13:06,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28544 to 28540. [2021-11-07 12:13:06,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28540 states, 28144 states have (on average 1.4654988629903354) internal successors, (41245), 28235 states have internal predecessors, (41245), 368 states have call successors, (368), 18 states have call predecessors, (368), 18 states have return successors, (368), 360 states have call predecessors, (368), 368 states have call successors, (368) [2021-11-07 12:13:06,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28540 states to 28540 states and 41981 transitions. [2021-11-07 12:13:06,160 INFO L78 Accepts]: Start accepts. Automaton has 28540 states and 41981 transitions. Word has length 14 [2021-11-07 12:13:06,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:06,162 INFO L470 AbstractCegarLoop]: Abstraction has 28540 states and 41981 transitions. [2021-11-07 12:13:06,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:06,164 INFO L276 IsEmpty]: Start isEmpty. Operand 28540 states and 41981 transitions. [2021-11-07 12:13:06,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 12:13:06,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:06,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:06,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 12:13:06,170 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 12:13:06,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:06,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1940844664, now seen corresponding path program 1 times [2021-11-07 12:13:06,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:06,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095917481] [2021-11-07 12:13:06,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:06,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:06,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:13:06,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:06,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095917481] [2021-11-07 12:13:06,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095917481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:06,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:06,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 12:13:06,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265836949] [2021-11-07 12:13:06,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:06,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:06,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:06,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:06,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:06,369 INFO L87 Difference]: Start difference. First operand 28540 states and 41981 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:07,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:07,698 INFO L93 Difference]: Finished difference Result 85591 states and 125909 transitions. [2021-11-07 12:13:07,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:07,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2021-11-07 12:13:07,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:07,898 INFO L225 Difference]: With dead ends: 85591 [2021-11-07 12:13:07,899 INFO L226 Difference]: Without dead ends: 57054 [2021-11-07 12:13:07,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.28ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:07,970 INFO L933 BasicCegarLoop]: 21207 mSDtfsCounter, 21006 mSDsluCounter, 20994 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21006 SdHoareTripleChecker+Valid, 42201 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.67ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.89ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:07,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21006 Valid, 42201 Invalid, 9 Unknown, 0 Unchecked, 58.67ms Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 13.89ms Time] [2021-11-07 12:13:08,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57054 states. [2021-11-07 12:13:09,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57054 to 57026. [2021-11-07 12:13:09,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57026 states, 56244 states have (on average 1.4656141099495057) internal successors, (82432), 56417 states have internal predecessors, (82432), 736 states have call successors, (736), 36 states have call predecessors, (736), 36 states have return successors, (736), 720 states have call predecessors, (736), 736 states have call successors, (736) [2021-11-07 12:13:09,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57026 states to 57026 states and 83904 transitions. [2021-11-07 12:13:09,755 INFO L78 Accepts]: Start accepts. Automaton has 57026 states and 83904 transitions. Word has length 17 [2021-11-07 12:13:09,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:09,756 INFO L470 AbstractCegarLoop]: Abstraction has 57026 states and 83904 transitions. [2021-11-07 12:13:09,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:09,756 INFO L276 IsEmpty]: Start isEmpty. Operand 57026 states and 83904 transitions. [2021-11-07 12:13:09,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 12:13:09,757 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:09,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:09,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 12:13:09,758 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 12:13:09,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:09,758 INFO L85 PathProgramCache]: Analyzing trace with hash -545448925, now seen corresponding path program 1 times [2021-11-07 12:13:09,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:09,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345659726] [2021-11-07 12:13:09,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:09,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:09,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:13:09,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:09,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345659726] [2021-11-07 12:13:09,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345659726] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:09,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:09,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 12:13:09,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289905108] [2021-11-07 12:13:09,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:09,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 12:13:09,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:09,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 12:13:09,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 12:13:09,925 INFO L87 Difference]: Start difference. First operand 57026 states and 83904 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:12,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:12,035 INFO L93 Difference]: Finished difference Result 99809 states and 146849 transitions. [2021-11-07 12:13:12,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 12:13:12,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2021-11-07 12:13:12,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:12,189 INFO L225 Difference]: With dead ends: 99809 [2021-11-07 12:13:12,190 INFO L226 Difference]: Without dead ends: 42786 [2021-11-07 12:13:12,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:13:12,272 INFO L933 BasicCegarLoop]: 41671 mSDtfsCounter, 41714 mSDsluCounter, 21149 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 466.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 41714 SdHoareTripleChecker+Valid, 62820 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 88.41ms SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 534.14ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:12,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41714 Valid, 62820 Invalid, 352 Unknown, 0 Unchecked, 88.41ms Time], IncrementalHoareTripleChecker [175 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 534.14ms Time] [2021-11-07 12:13:12,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42786 states. [2021-11-07 12:13:13,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42786 to 42786. [2021-11-07 12:13:13,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42786 states, 42197 states have (on average 1.4655070265658696) internal successors, (61840), 42329 states have internal predecessors, (61840), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-07 12:13:13,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42786 states to 42786 states and 62944 transitions. [2021-11-07 12:13:13,449 INFO L78 Accepts]: Start accepts. Automaton has 42786 states and 62944 transitions. Word has length 19 [2021-11-07 12:13:13,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:13,449 INFO L470 AbstractCegarLoop]: Abstraction has 42786 states and 62944 transitions. [2021-11-07 12:13:13,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:13,450 INFO L276 IsEmpty]: Start isEmpty. Operand 42786 states and 62944 transitions. [2021-11-07 12:13:13,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 12:13:13,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:13,456 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:13,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 12:13:13,457 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 12:13:13,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:13,457 INFO L85 PathProgramCache]: Analyzing trace with hash 578835819, now seen corresponding path program 1 times [2021-11-07 12:13:13,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:13,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436373795] [2021-11-07 12:13:13,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:13,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:13,617 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 12:13:13,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:13,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436373795] [2021-11-07 12:13:13,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436373795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:13,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:13,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:13,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377832579] [2021-11-07 12:13:13,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:13,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:13,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:13,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:13,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:13,621 INFO L87 Difference]: Start difference. First operand 42786 states and 62944 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:15,660 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 [] [2021-11-07 12:13:16,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:16,660 INFO L93 Difference]: Finished difference Result 42786 states and 62944 transitions. [2021-11-07 12:13:16,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:16,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-07 12:13:16,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:16,755 INFO L225 Difference]: With dead ends: 42786 [2021-11-07 12:13:16,756 INFO L226 Difference]: Without dead ends: 42782 [2021-11-07 12:13:16,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.00ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:16,783 INFO L933 BasicCegarLoop]: 21017 mSDtfsCounter, 20983 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2044.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20983 SdHoareTripleChecker+Valid, 21027 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.17ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2156.13ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:16,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20983 Valid, 21027 Invalid, 8 Unknown, 0 Unchecked, 26.17ms Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2156.13ms Time] [2021-11-07 12:13:16,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42782 states. [2021-11-07 12:13:17,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42782 to 42782. [2021-11-07 12:13:17,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42782 states, 42195 states have (on average 1.465434293162697) internal successors, (61834), 42325 states have internal predecessors, (61834), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-07 12:13:18,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42782 states to 42782 states and 62938 transitions. [2021-11-07 12:13:18,035 INFO L78 Accepts]: Start accepts. Automaton has 42782 states and 62938 transitions. Word has length 29 [2021-11-07 12:13:18,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:18,035 INFO L470 AbstractCegarLoop]: Abstraction has 42782 states and 62938 transitions. [2021-11-07 12:13:18,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:18,036 INFO L276 IsEmpty]: Start isEmpty. Operand 42782 states and 62938 transitions. [2021-11-07 12:13:18,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 12:13:18,037 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:18,037 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:18,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 12:13:18,038 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 12:13:18,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:18,038 INFO L85 PathProgramCache]: Analyzing trace with hash 764091808, now seen corresponding path program 1 times [2021-11-07 12:13:18,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:18,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81700188] [2021-11-07 12:13:18,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:18,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:18,209 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 12:13:18,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:18,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81700188] [2021-11-07 12:13:18,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81700188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:18,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:18,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:18,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223190475] [2021-11-07 12:13:18,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:18,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:18,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:18,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:18,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:18,215 INFO L87 Difference]: Start difference. First operand 42782 states and 62938 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:20,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:13:21,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:21,046 INFO L93 Difference]: Finished difference Result 42782 states and 62938 transitions. [2021-11-07 12:13:21,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:21,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 30 [2021-11-07 12:13:21,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:21,158 INFO L225 Difference]: With dead ends: 42782 [2021-11-07 12:13:21,158 INFO L226 Difference]: Without dead ends: 42780 [2021-11-07 12:13:21,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.96ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:21,181 INFO L933 BasicCegarLoop]: 21016 mSDtfsCounter, 20994 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2050.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20994 SdHoareTripleChecker+Valid, 21016 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.99ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2148.59ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:21,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20994 Valid, 21016 Invalid, 2 Unknown, 0 Unchecked, 17.99ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2148.59ms Time] [2021-11-07 12:13:21,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42780 states. [2021-11-07 12:13:22,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42780 to 42780. [2021-11-07 12:13:22,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42780 states, 42194 states have (on average 1.4654216239275726) internal successors, (61832), 42323 states have internal predecessors, (61832), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-07 12:13:22,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42780 states to 42780 states and 62936 transitions. [2021-11-07 12:13:22,409 INFO L78 Accepts]: Start accepts. Automaton has 42780 states and 62936 transitions. Word has length 30 [2021-11-07 12:13:22,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:22,409 INFO L470 AbstractCegarLoop]: Abstraction has 42780 states and 62936 transitions. [2021-11-07 12:13:22,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:22,410 INFO L276 IsEmpty]: Start isEmpty. Operand 42780 states and 62936 transitions. [2021-11-07 12:13:22,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 12:13:22,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:22,411 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:22,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 12:13:22,411 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 12:13:22,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:22,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2082907115, now seen corresponding path program 1 times [2021-11-07 12:13:22,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:22,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928420418] [2021-11-07 12:13:22,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:22,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:22,561 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 12:13:22,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:22,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928420418] [2021-11-07 12:13:22,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928420418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:22,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:22,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:22,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164763281] [2021-11-07 12:13:22,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:22,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:22,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:22,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:22,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:22,564 INFO L87 Difference]: Start difference. First operand 42780 states and 62936 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:24,607 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 [] [2021-11-07 12:13:25,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:25,485 INFO L93 Difference]: Finished difference Result 42780 states and 62936 transitions. [2021-11-07 12:13:25,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:25,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 31 [2021-11-07 12:13:25,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:25,580 INFO L225 Difference]: With dead ends: 42780 [2021-11-07 12:13:25,581 INFO L226 Difference]: Without dead ends: 42778 [2021-11-07 12:13:25,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.47ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:25,601 INFO L933 BasicCegarLoop]: 21014 mSDtfsCounter, 20991 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2042.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20991 SdHoareTripleChecker+Valid, 21014 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.24ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2157.84ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:25,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20991 Valid, 21014 Invalid, 2 Unknown, 0 Unchecked, 19.24ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2157.84ms Time] [2021-11-07 12:13:25,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42778 states. [2021-11-07 12:13:26,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42778 to 42778. [2021-11-07 12:13:26,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42778 states, 42193 states have (on average 1.465408954091911) internal successors, (61830), 42321 states have internal predecessors, (61830), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-07 12:13:26,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42778 states to 42778 states and 62934 transitions. [2021-11-07 12:13:26,768 INFO L78 Accepts]: Start accepts. Automaton has 42778 states and 62934 transitions. Word has length 31 [2021-11-07 12:13:26,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:26,768 INFO L470 AbstractCegarLoop]: Abstraction has 42778 states and 62934 transitions. [2021-11-07 12:13:26,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:26,769 INFO L276 IsEmpty]: Start isEmpty. Operand 42778 states and 62934 transitions. [2021-11-07 12:13:26,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 12:13:26,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:26,770 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:26,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 12:13:26,770 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 12:13:26,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:26,771 INFO L85 PathProgramCache]: Analyzing trace with hash -145560502, now seen corresponding path program 1 times [2021-11-07 12:13:26,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:26,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926889726] [2021-11-07 12:13:26,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:26,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:26,899 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 12:13:26,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:26,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926889726] [2021-11-07 12:13:26,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926889726] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:26,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:26,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:26,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352527886] [2021-11-07 12:13:26,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:26,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:26,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:26,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:26,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:26,902 INFO L87 Difference]: Start difference. First operand 42778 states and 62934 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:28,943 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 [] [2021-11-07 12:13:29,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:29,865 INFO L93 Difference]: Finished difference Result 42778 states and 62934 transitions. [2021-11-07 12:13:29,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:29,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-07 12:13:29,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:29,947 INFO L225 Difference]: With dead ends: 42778 [2021-11-07 12:13:29,947 INFO L226 Difference]: Without dead ends: 42776 [2021-11-07 12:13:29,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.19ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:29,962 INFO L933 BasicCegarLoop]: 21012 mSDtfsCounter, 20988 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2041.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20988 SdHoareTripleChecker+Valid, 21012 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.01ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2172.48ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:29,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20988 Valid, 21012 Invalid, 2 Unknown, 0 Unchecked, 19.01ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2172.48ms Time] [2021-11-07 12:13:30,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42776 states. [2021-11-07 12:13:30,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42776 to 42776. [2021-11-07 12:13:30,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42776 states, 42192 states have (on average 1.4653962836556693) internal successors, (61828), 42319 states have internal predecessors, (61828), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-07 12:13:30,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42776 states to 42776 states and 62932 transitions. [2021-11-07 12:13:30,975 INFO L78 Accepts]: Start accepts. Automaton has 42776 states and 62932 transitions. Word has length 32 [2021-11-07 12:13:30,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:30,975 INFO L470 AbstractCegarLoop]: Abstraction has 42776 states and 62932 transitions. [2021-11-07 12:13:30,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:30,976 INFO L276 IsEmpty]: Start isEmpty. Operand 42776 states and 62932 transitions. [2021-11-07 12:13:30,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 12:13:30,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:30,977 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:30,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 12:13:30,978 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 12:13:30,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:30,978 INFO L85 PathProgramCache]: Analyzing trace with hash -217357633, now seen corresponding path program 1 times [2021-11-07 12:13:30,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:30,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930565265] [2021-11-07 12:13:30,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:30,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:31,123 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 12:13:31,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:31,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930565265] [2021-11-07 12:13:31,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930565265] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:31,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:31,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:31,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938161295] [2021-11-07 12:13:31,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:31,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:31,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:31,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:31,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:31,126 INFO L87 Difference]: Start difference. First operand 42776 states and 62932 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:33,169 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 [] [2021-11-07 12:13:34,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:34,114 INFO L93 Difference]: Finished difference Result 42776 states and 62932 transitions. [2021-11-07 12:13:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:34,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 12:13:34,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:34,188 INFO L225 Difference]: With dead ends: 42776 [2021-11-07 12:13:34,188 INFO L226 Difference]: Without dead ends: 42774 [2021-11-07 12:13:34,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.23ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:34,202 INFO L933 BasicCegarLoop]: 21010 mSDtfsCounter, 20985 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2042.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20985 SdHoareTripleChecker+Valid, 21010 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.97ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2158.63ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:34,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20985 Valid, 21010 Invalid, 2 Unknown, 0 Unchecked, 18.97ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2158.63ms Time] [2021-11-07 12:13:34,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42774 states. [2021-11-07 12:13:35,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42774 to 42774. [2021-11-07 12:13:35,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42774 states, 42191 states have (on average 1.465383612618805) internal successors, (61826), 42317 states have internal predecessors, (61826), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-07 12:13:35,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42774 states to 42774 states and 62930 transitions. [2021-11-07 12:13:35,179 INFO L78 Accepts]: Start accepts. Automaton has 42774 states and 62930 transitions. Word has length 33 [2021-11-07 12:13:35,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:35,180 INFO L470 AbstractCegarLoop]: Abstraction has 42774 states and 62930 transitions. [2021-11-07 12:13:35,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:35,180 INFO L276 IsEmpty]: Start isEmpty. Operand 42774 states and 62930 transitions. [2021-11-07 12:13:35,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 12:13:35,181 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:35,181 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:35,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 12:13:35,181 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 12:13:35,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:35,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1851898612, now seen corresponding path program 1 times [2021-11-07 12:13:35,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:35,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427643440] [2021-11-07 12:13:35,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:35,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:35,308 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 12:13:35,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:35,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427643440] [2021-11-07 12:13:35,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427643440] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:35,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:35,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:35,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60594069] [2021-11-07 12:13:35,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:35,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:35,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:35,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:35,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:35,311 INFO L87 Difference]: Start difference. First operand 42774 states and 62930 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:37,354 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 [] [2021-11-07 12:13:38,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:38,462 INFO L93 Difference]: Finished difference Result 42774 states and 62930 transitions. [2021-11-07 12:13:38,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:38,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 34 [2021-11-07 12:13:38,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:38,527 INFO L225 Difference]: With dead ends: 42774 [2021-11-07 12:13:38,528 INFO L226 Difference]: Without dead ends: 42772 [2021-11-07 12:13:38,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.63ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:38,539 INFO L933 BasicCegarLoop]: 21008 mSDtfsCounter, 20982 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2043.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20982 SdHoareTripleChecker+Valid, 21008 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.03ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2130.55ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:38,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20982 Valid, 21008 Invalid, 2 Unknown, 0 Unchecked, 20.03ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2130.55ms Time] [2021-11-07 12:13:38,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42772 states. [2021-11-07 12:13:39,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42772 to 42772. [2021-11-07 12:13:39,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42772 states, 42190 states have (on average 1.4653709409812752) internal successors, (61824), 42315 states have internal predecessors, (61824), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-07 12:13:39,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42772 states to 42772 states and 62928 transitions. [2021-11-07 12:13:39,595 INFO L78 Accepts]: Start accepts. Automaton has 42772 states and 62928 transitions. Word has length 34 [2021-11-07 12:13:39,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:39,595 INFO L470 AbstractCegarLoop]: Abstraction has 42772 states and 62928 transitions. [2021-11-07 12:13:39,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:39,596 INFO L276 IsEmpty]: Start isEmpty. Operand 42772 states and 62928 transitions. [2021-11-07 12:13:39,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 12:13:39,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:39,597 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:39,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 12:13:39,597 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 12:13:39,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:39,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1574332777, now seen corresponding path program 1 times [2021-11-07 12:13:39,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:39,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985458162] [2021-11-07 12:13:39,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:39,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:39,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 12:13:39,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:39,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985458162] [2021-11-07 12:13:39,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985458162] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:39,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:39,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:39,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94933294] [2021-11-07 12:13:39,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:39,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:39,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:39,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:39,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:39,736 INFO L87 Difference]: Start difference. First operand 42772 states and 62928 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:41,781 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 [] [2021-11-07 12:13:42,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:42,742 INFO L93 Difference]: Finished difference Result 42772 states and 62928 transitions. [2021-11-07 12:13:42,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:42,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 35 [2021-11-07 12:13:42,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:42,811 INFO L225 Difference]: With dead ends: 42772 [2021-11-07 12:13:42,811 INFO L226 Difference]: Without dead ends: 42770 [2021-11-07 12:13:42,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.16ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:42,829 INFO L933 BasicCegarLoop]: 21006 mSDtfsCounter, 20979 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2044.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20979 SdHoareTripleChecker+Valid, 21006 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.46ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2180.25ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:42,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20979 Valid, 21006 Invalid, 2 Unknown, 0 Unchecked, 18.46ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2180.25ms Time] [2021-11-07 12:13:42,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42770 states. [2021-11-07 12:13:44,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42770 to 42770. [2021-11-07 12:13:44,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42770 states, 42189 states have (on average 1.4653582687430373) internal successors, (61822), 42313 states have internal predecessors, (61822), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-07 12:13:44,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42770 states to 42770 states and 62926 transitions. [2021-11-07 12:13:44,171 INFO L78 Accepts]: Start accepts. Automaton has 42770 states and 62926 transitions. Word has length 35 [2021-11-07 12:13:44,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:44,172 INFO L470 AbstractCegarLoop]: Abstraction has 42770 states and 62926 transitions. [2021-11-07 12:13:44,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:44,172 INFO L276 IsEmpty]: Start isEmpty. Operand 42770 states and 62926 transitions. [2021-11-07 12:13:44,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 12:13:44,173 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:44,173 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:44,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 12:13:44,173 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 12:13:44,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:44,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1559726494, now seen corresponding path program 1 times [2021-11-07 12:13:44,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:44,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302053712] [2021-11-07 12:13:44,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:44,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:44,292 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 12:13:44,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:44,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302053712] [2021-11-07 12:13:44,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302053712] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:44,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:44,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:13:44,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862399211] [2021-11-07 12:13:44,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:44,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:13:44,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:44,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:13:44,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:44,295 INFO L87 Difference]: Start difference. First operand 42770 states and 62926 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:46,338 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 [] [2021-11-07 12:13:47,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:13:47,287 INFO L93 Difference]: Finished difference Result 42770 states and 62926 transitions. [2021-11-07 12:13:47,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:13:47,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 36 [2021-11-07 12:13:47,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:13:47,475 INFO L225 Difference]: With dead ends: 42770 [2021-11-07 12:13:47,475 INFO L226 Difference]: Without dead ends: 42747 [2021-11-07 12:13:47,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.34ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:13:47,494 INFO L933 BasicCegarLoop]: 21005 mSDtfsCounter, 20976 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2042.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20976 SdHoareTripleChecker+Valid, 21005 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2042.74ms IncrementalHoareTripleChecker+Time [2021-11-07 12:13:47,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20976 Valid, 21005 Invalid, 1 Unknown, 0 Unchecked, 20.34ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 2042.74ms Time] [2021-11-07 12:13:47,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42747 states. [2021-11-07 12:13:48,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42747 to 42747. [2021-11-07 12:13:48,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42747 states, 42167 states have (on average 1.465482486304456) internal successors, (61795), 42290 states have internal predecessors, (61795), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-07 12:13:48,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42747 states to 42747 states and 62899 transitions. [2021-11-07 12:13:48,914 INFO L78 Accepts]: Start accepts. Automaton has 42747 states and 62899 transitions. Word has length 36 [2021-11-07 12:13:48,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:13:48,915 INFO L470 AbstractCegarLoop]: Abstraction has 42747 states and 62899 transitions. [2021-11-07 12:13:48,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:13:48,915 INFO L276 IsEmpty]: Start isEmpty. Operand 42747 states and 62899 transitions. [2021-11-07 12:13:48,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 12:13:48,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:13:48,922 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:13:48,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 12:13:48,922 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 12:13:48,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:13:48,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1768746328, now seen corresponding path program 1 times [2021-11-07 12:13:48,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:13:48,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386326332] [2021-11-07 12:13:48,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:13:48,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:13:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:49,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-07 12:13:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:49,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-07 12:13:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:13:49,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:13:49,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:13:49,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386326332] [2021-11-07 12:13:49,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386326332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:13:49,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:13:49,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 12:13:49,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392199036] [2021-11-07 12:13:49,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:13:49,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 12:13:49,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:13:49,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 12:13:49,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 12:13:49,130 INFO L87 Difference]: Start difference. First operand 42747 states and 62899 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 12:13:51,178 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:13:55,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:13:58,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:07,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:10,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:11,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:14,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:23,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:25,128 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:27,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:30,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:32,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:35,452 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:41,038 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:43,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:46,204 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:51,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:53,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:56,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:14:59,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:15:03,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:15:06,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:15:10,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:15:12,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:15:14,689 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:15:17,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:15:19,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:15:23,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:15:29,057 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:15:31,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:15:32,920 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:15:35,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:15:38,038 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:15:42,374 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 [] [2021-11-07 12:15:43,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:15:43,929 INFO L93 Difference]: Finished difference Result 71496 states and 105552 transitions. [2021-11-07 12:15:43,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 12:15:43,929 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), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 72 [2021-11-07 12:15:43,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:15:44,011 INFO L225 Difference]: With dead ends: 71496 [2021-11-07 12:15:44,011 INFO L226 Difference]: Without dead ends: 28752 [2021-11-07 12:15:44,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.77ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 12:15:44,076 INFO L933 BasicCegarLoop]: 20954 mSDtfsCounter, 174 mSDsluCounter, 34809 mSDsCounter, 0 mSdLazyCounter, 6948 mSolverCounterSat, 196 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108143.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 55763 SdHoareTripleChecker+Invalid, 7162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 81.91ms SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 6948 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 113525.45ms IncrementalHoareTripleChecker+Time [2021-11-07 12:15:44,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 55763 Invalid, 7162 Unknown, 0 Unchecked, 81.91ms Time], IncrementalHoareTripleChecker [196 Valid, 6948 Invalid, 18 Unknown, 0 Unchecked, 113525.45ms Time] [2021-11-07 12:15:44,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28752 states. [2021-11-07 12:15:45,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28752 to 28672. [2021-11-07 12:15:45,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28672 states, 28285 states have (on average 1.466042071769489) internal successors, (41467), 28367 states have internal predecessors, (41467), 368 states have call successors, (368), 18 states have call predecessors, (368), 18 states have return successors, (368), 360 states have call predecessors, (368), 368 states have call successors, (368) [2021-11-07 12:15:45,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28672 states to 28672 states and 42203 transitions. [2021-11-07 12:15:45,429 INFO L78 Accepts]: Start accepts. Automaton has 28672 states and 42203 transitions. Word has length 72 [2021-11-07 12:15:45,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:15:45,430 INFO L470 AbstractCegarLoop]: Abstraction has 28672 states and 42203 transitions. [2021-11-07 12:15:45,430 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), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 12:15:45,430 INFO L276 IsEmpty]: Start isEmpty. Operand 28672 states and 42203 transitions. [2021-11-07 12:15:45,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 12:15:45,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:15:45,437 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 12:15:45,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 12:15:45,437 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 12:15:45,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:15:45,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1353331646, now seen corresponding path program 1 times [2021-11-07 12:15:45,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:15:45,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225512376] [2021-11-07 12:15:45,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:15:45,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:15:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:15:45,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-07 12:15:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:15:45,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-07 12:15:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:15:45,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 12:15:45,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:15:45,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225512376] [2021-11-07 12:15:45,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225512376] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:15:45,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:15:45,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 12:15:45,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101717193] [2021-11-07 12:15:45,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:15:45,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 12:15:45,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:15:45,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 12:15:45,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 12:15:45,709 INFO L87 Difference]: Start difference. First operand 28672 states and 42203 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 12:15:47,754 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 [] [2021-11-07 12:15:49,872 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:15:59,368 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:16:02,457 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:16:06,361 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:16:11,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:16:17,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:16:22,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:16:30,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:16:33,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:16:40,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:16:45,252 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:16:48,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:16:52,708 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:16:55,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:16:58,852 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:17:01,612 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:17:06,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:17:09,655 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:17:14,249 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:17:16,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:17:18,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:17:21,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:17:25,689 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 [] [2021-11-07 12:17:29,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:17:29,827 INFO L93 Difference]: Finished difference Result 28730 states and 42627 transitions. [2021-11-07 12:17:29,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 12:17:29,828 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), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2021-11-07 12:17:29,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:17:29,829 INFO L225 Difference]: With dead ends: 28730 [2021-11-07 12:17:29,829 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 12:17:29,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.15ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 12:17:29,852 INFO L933 BasicCegarLoop]: 20985 mSDtfsCounter, 72 mSDsluCounter, 34684 mSDsCounter, 0 mSdLazyCounter, 7132 mSolverCounterSat, 192 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98174.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 55669 SdHoareTripleChecker+Invalid, 7341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 75.22ms SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 7132 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103034.66ms IncrementalHoareTripleChecker+Time [2021-11-07 12:17:29,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 55669 Invalid, 7341 Unknown, 0 Unchecked, 75.22ms Time], IncrementalHoareTripleChecker [192 Valid, 7132 Invalid, 17 Unknown, 0 Unchecked, 103034.66ms Time] [2021-11-07 12:17:29,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 12:17:29,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 12:17:29,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:17:29,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 12:17:29,854 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2021-11-07 12:17:29,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:17:29,854 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 12:17:29,854 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), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 12:17:29,855 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 12:17:29,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 12:17:29,857 INFO L764 garLoopResultBuilder]: Registering result SAFE for location clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 10 remaining) [2021-11-07 12:17:29,858 INFO L764 garLoopResultBuilder]: Registering result SAFE for location clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION (8 of 10 remaining) [2021-11-07 12:17:29,858 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 10 remaining) [2021-11-07 12:17:29,858 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 10 remaining) [2021-11-07 12:17:29,858 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (5 of 10 remaining) [2021-11-07 12:17:29,859 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (4 of 10 remaining) [2021-11-07 12:17:29,859 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (3 of 10 remaining) [2021-11-07 12:17:29,859 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (2 of 10 remaining) [2021-11-07 12:17:29,859 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (1 of 10 remaining) [2021-11-07 12:17:29,860 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (0 of 10 remaining) [2021-11-07 12:17:29,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 12:17:29,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.