./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 29824587617da9a02b15e9129afbb9cf5ee59d8d3dbb506aa4fe0ed84097e2f1 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 14:48:35,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 14:48:35,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 14:48:35,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 14:48:35,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 14:48:35,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 14:48:35,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 14:48:35,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 14:48:35,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 14:48:35,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 14:48:35,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 14:48:35,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 14:48:35,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 14:48:35,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 14:48:35,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 14:48:35,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 14:48:35,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 14:48:35,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 14:48:35,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 14:48:35,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 14:48:35,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 14:48:35,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 14:48:35,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 14:48:35,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 14:48:35,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 14:48:35,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 14:48:35,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 14:48:35,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 14:48:35,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 14:48:35,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 14:48:35,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 14:48:35,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 14:48:35,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 14:48:35,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 14:48:35,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 14:48:35,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 14:48:35,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 14:48:35,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 14:48:35,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 14:48:35,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 14:48:35,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 14:48:35,648 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 14:48:35,664 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 14:48:35,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 14:48:35,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 14:48:35,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 14:48:35,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 14:48:35,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 14:48:35,665 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 14:48:35,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 14:48:35,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 14:48:35,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 14:48:35,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 14:48:35,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 14:48:35,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 14:48:35,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 14:48:35,666 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 14:48:35,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 14:48:35,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 14:48:35,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 14:48:35,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 14:48:35,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:48:35,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 14:48:35,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 14:48:35,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 14:48:35,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 14:48:35,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 14:48:35,668 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 14:48:35,668 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 14:48:35,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 14:48:35,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 14:48:35,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29824587617da9a02b15e9129afbb9cf5ee59d8d3dbb506aa4fe0ed84097e2f1 [2021-11-07 14:48:35,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 14:48:35,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 14:48:35,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 14:48:35,844 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 14:48:35,845 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 14:48:35,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2021-11-07 14:48:35,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7800648c6/293d0d5168ee46fa8af4d84e55102fe0/FLAGf550f567d [2021-11-07 14:48:36,631 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 14:48:36,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2021-11-07 14:48:36,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7800648c6/293d0d5168ee46fa8af4d84e55102fe0/FLAGf550f567d [2021-11-07 14:48:37,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7800648c6/293d0d5168ee46fa8af4d84e55102fe0 [2021-11-07 14:48:37,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 14:48:37,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 14:48:37,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 14:48:37,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 14:48:37,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 14:48:37,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:48:37" (1/1) ... [2021-11-07 14:48:37,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd54f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:37, skipping insertion in model container [2021-11-07 14:48:37,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:48:37" (1/1) ... [2021-11-07 14:48:37,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 14:48:37,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 14:48:39,014 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[314027,314040] [2021-11-07 14:48:39,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:48:39,332 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 14:48:39,637 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[314027,314040] [2021-11-07 14:48:39,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:48:39,769 INFO L208 MainTranslator]: Completed translation [2021-11-07 14:48:39,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:39 WrapperNode [2021-11-07 14:48:39,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 14:48:39,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 14:48:39,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 14:48:39,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 14:48:39,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:39" (1/1) ... [2021-11-07 14:48:39,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:39" (1/1) ... [2021-11-07 14:48:40,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 14:48:40,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 14:48:40,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 14:48:40,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 14:48:40,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:39" (1/1) ... [2021-11-07 14:48:40,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:39" (1/1) ... [2021-11-07 14:48:40,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:39" (1/1) ... [2021-11-07 14:48:40,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:39" (1/1) ... [2021-11-07 14:48:40,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:39" (1/1) ... [2021-11-07 14:48:41,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:39" (1/1) ... [2021-11-07 14:48:41,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:39" (1/1) ... [2021-11-07 14:48:41,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 14:48:41,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 14:48:41,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 14:48:41,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 14:48:41,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:39" (1/1) ... [2021-11-07 14:48:41,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:48:41,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:48:41,421 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 14:48:41,428 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 14:48:41,449 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_cmd [2021-11-07 14:48:41,450 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_cmd [2021-11-07 14:48:41,450 INFO L130 BoogieDeclarations]: Found specification of procedure handle_bmc_rsp [2021-11-07 14:48:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_bmc_rsp [2021-11-07 14:48:41,451 INFO L130 BoogieDeclarations]: Found specification of procedure handle_oem_get_msg_cmd [2021-11-07 14:48:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_oem_get_msg_cmd [2021-11-07 14:48:41,451 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-07 14:48:41,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 14:48:41,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 14:48:41,451 INFO L130 BoogieDeclarations]: Found specification of procedure free_smi_msg_list [2021-11-07 14:48:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure free_smi_msg_list [2021-11-07 14:48:41,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 14:48:41,452 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2021-11-07 14:48:41,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2021-11-07 14:48:41,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 14:48:41,452 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_err_response [2021-11-07 14:48:41,452 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_err_response [2021-11-07 14:48:41,452 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-07 14:48:41,452 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-07 14:48:41,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 14:48:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 14:48:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 14:48:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure handle_one_recv_msg [2021-11-07 14:48:41,453 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_one_recv_msg [2021-11-07 14:48:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 14:48:41,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 14:48:41,453 INFO L130 BoogieDeclarations]: Found specification of procedure handle_new_recv_msgs [2021-11-07 14:48:41,453 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_new_recv_msgs [2021-11-07 14:48:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure intf_free [2021-11-07 14:48:41,454 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_free [2021-11-07 14:48:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 14:48:41,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 14:48:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-07 14:48:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-07 14:48:41,454 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-07 14:48:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 14:48:41,455 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_msg_received [2021-11-07 14:48:41,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_msg_received [2021-11-07 14:48:41,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 14:48:41,455 INFO L130 BoogieDeclarations]: Found specification of procedure handle_read_event_rsp [2021-11-07 14:48:41,455 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_read_event_rsp [2021-11-07 14:48:41,455 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_cmd [2021-11-07 14:48:41,455 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_cmd [2021-11-07 14:48:41,456 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_smi_msg [2021-11-07 14:48:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_smi_msg [2021-11-07 14:48:41,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 14:48:41,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 14:48:41,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 14:48:41,456 INFO L130 BoogieDeclarations]: Found specification of procedure clean_up_interface_data [2021-11-07 14:48:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_up_interface_data [2021-11-07 14:48:41,456 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_rsp [2021-11-07 14:48:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_rsp [2021-11-07 14:48:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 14:48:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_rsp [2021-11-07 14:48:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_rsp [2021-11-07 14:48:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure free_recv_msg_list [2021-11-07 14:48:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure free_recv_msg_list [2021-11-07 14:48:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure intf_err_seq [2021-11-07 14:48:41,458 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_err_seq [2021-11-07 14:48:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure smi_recv_tasklet [2021-11-07 14:48:41,459 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_recv_tasklet [2021-11-07 14:48:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_response [2021-11-07 14:48:41,459 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_response [2021-11-07 14:48:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 14:48:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2021-11-07 14:48:41,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2021-11-07 14:48:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 14:49:20,230 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 14:49:20,231 INFO L299 CfgBuilder]: Removed 3392 assume(true) statements. [2021-11-07 14:49:20,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:49:20 BoogieIcfgContainer [2021-11-07 14:49:20,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 14:49:20,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 14:49:20,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 14:49:20,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 14:49:20,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:48:37" (1/3) ... [2021-11-07 14:49:20,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28972340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:49:20, skipping insertion in model container [2021-11-07 14:49:20,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:39" (2/3) ... [2021-11-07 14:49:20,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28972340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:49:20, skipping insertion in model container [2021-11-07 14:49:20,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:49:20" (3/3) ... [2021-11-07 14:49:20,243 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2021-11-07 14:49:20,247 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 14:49:20,248 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-07 14:49:20,304 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 14:49:20,309 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 14:49:20,309 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-07 14:49:20,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 4129 states, 4014 states have (on average 1.5343796711509716) internal successors, (6159), 4045 states have internal predecessors, (6159), 80 states have call successors, (80), 24 states have call predecessors, (80), 24 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-07 14:49:20,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-07 14:49:20,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:49:20,408 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:20,409 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 14:49:20,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:49:20,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1503774384, now seen corresponding path program 1 times [2021-11-07 14:49:20,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:49:20,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51696696] [2021-11-07 14:49:20,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:49:20,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:49:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:49:21,044 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 14:49:21,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:49:21,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51696696] [2021-11-07 14:49:21,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51696696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:49:21,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:49:21,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:49:21,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327856220] [2021-11-07 14:49:21,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:49:21,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 14:49:21,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:49:21,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 14:49:21,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:49:21,091 INFO L87 Difference]: Start difference. First operand has 4129 states, 4014 states have (on average 1.5343796711509716) internal successors, (6159), 4045 states have internal predecessors, (6159), 80 states have call successors, (80), 24 states have call predecessors, (80), 24 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) Second operand has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 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 14:49:21,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:49:21,258 INFO L93 Difference]: Finished difference Result 8254 states and 12713 transitions. [2021-11-07 14:49:21,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 14:49:21,260 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 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 210 [2021-11-07 14:49:21,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:49:21,290 INFO L225 Difference]: With dead ends: 8254 [2021-11-07 14:49:21,290 INFO L226 Difference]: Without dead ends: 4107 [2021-11-07 14:49:21,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:49:21,310 INFO L933 BasicCegarLoop]: 6240 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6240 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.59ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 14:49:21,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6240 Invalid, 0 Unknown, 0 Unchecked, 12.59ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 14:49:21,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4107 states. [2021-11-07 14:49:21,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4107 to 4107. [2021-11-07 14:49:21,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4107 states, 3993 states have (on average 1.5126471324818431) internal successors, (6040), 4023 states have internal predecessors, (6040), 80 states have call successors, (80), 24 states have call predecessors, (80), 24 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-07 14:49:21,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4107 states to 4107 states and 6200 transitions. [2021-11-07 14:49:21,486 INFO L78 Accepts]: Start accepts. Automaton has 4107 states and 6200 transitions. Word has length 210 [2021-11-07 14:49:21,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:49:21,487 INFO L470 AbstractCegarLoop]: Abstraction has 4107 states and 6200 transitions. [2021-11-07 14:49:21,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 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 14:49:21,488 INFO L276 IsEmpty]: Start isEmpty. Operand 4107 states and 6200 transitions. [2021-11-07 14:49:21,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-07 14:49:21,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:49:21,499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:21,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 14:49:21,500 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 14:49:21,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:49:21,501 INFO L85 PathProgramCache]: Analyzing trace with hash -394926700, now seen corresponding path program 1 times [2021-11-07 14:49:21,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:49:21,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022556066] [2021-11-07 14:49:21,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:49:21,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:49:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:49:22,044 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 14:49:22,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:49:22,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022556066] [2021-11-07 14:49:22,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022556066] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:49:22,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:49:22,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:49:22,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636520802] [2021-11-07 14:49:22,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:49:22,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:49:22,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:49:22,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:49:22,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:49:22,047 INFO L87 Difference]: Start difference. First operand 4107 states and 6200 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 14:49:24,136 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:49:24,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:49:24,475 INFO L93 Difference]: Finished difference Result 11822 states and 18051 transitions. [2021-11-07 14:49:24,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:49:24,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 210 [2021-11-07 14:49:24,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:49:24,510 INFO L225 Difference]: With dead ends: 11822 [2021-11-07 14:49:24,510 INFO L226 Difference]: Without dead ends: 7912 [2021-11-07 14:49:24,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.66ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:49:24,523 INFO L933 BasicCegarLoop]: 6277 mSDtfsCounter, 5904 mSDsluCounter, 6132 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2091.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5904 SdHoareTripleChecker+Valid, 12409 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.94ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2204.24ms IncrementalHoareTripleChecker+Time [2021-11-07 14:49:24,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5904 Valid, 12409 Invalid, 15 Unknown, 0 Unchecked, 26.94ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2204.24ms Time] [2021-11-07 14:49:24,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7912 states. [2021-11-07 14:49:24,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7912 to 7908. [2021-11-07 14:49:24,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7908 states, 7690 states have (on average 1.5258777633289986) internal successors, (11734), 7741 states have internal predecessors, (11734), 160 states have call successors, (160), 48 states have call predecessors, (160), 48 states have return successors, (160), 156 states have call predecessors, (160), 160 states have call successors, (160) [2021-11-07 14:49:24,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7908 states to 7908 states and 12054 transitions. [2021-11-07 14:49:24,724 INFO L78 Accepts]: Start accepts. Automaton has 7908 states and 12054 transitions. Word has length 210 [2021-11-07 14:49:24,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:49:24,726 INFO L470 AbstractCegarLoop]: Abstraction has 7908 states and 12054 transitions. [2021-11-07 14:49:24,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 14:49:24,727 INFO L276 IsEmpty]: Start isEmpty. Operand 7908 states and 12054 transitions. [2021-11-07 14:49:24,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-07 14:49:24,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:49:24,730 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:24,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 14:49:24,731 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 14:49:24,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:49:24,732 INFO L85 PathProgramCache]: Analyzing trace with hash 477537030, now seen corresponding path program 1 times [2021-11-07 14:49:24,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:49:24,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925773338] [2021-11-07 14:49:24,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:49:24,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:49:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:49:25,207 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 14:49:25,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:49:25,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925773338] [2021-11-07 14:49:25,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925773338] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:49:25,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:49:25,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:49:25,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598206444] [2021-11-07 14:49:25,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:49:25,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:49:25,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:49:25,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:49:25,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:49:25,215 INFO L87 Difference]: Start difference. First operand 7908 states and 12054 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 2 states have internal predecessors, (214), 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 14:49:25,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:49:25,629 INFO L93 Difference]: Finished difference Result 23281 states and 35671 transitions. [2021-11-07 14:49:25,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:49:25,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 2 states have internal predecessors, (214), 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 214 [2021-11-07 14:49:25,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:49:25,729 INFO L225 Difference]: With dead ends: 23281 [2021-11-07 14:49:25,747 INFO L226 Difference]: Without dead ends: 15570 [2021-11-07 14:49:25,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.24ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:49:25,763 INFO L933 BasicCegarLoop]: 6278 mSDtfsCounter, 5975 mSDsluCounter, 5927 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5975 SdHoareTripleChecker+Valid, 12205 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.60ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.71ms IncrementalHoareTripleChecker+Time [2021-11-07 14:49:25,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5975 Valid, 12205 Invalid, 9 Unknown, 0 Unchecked, 17.60ms Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 11.71ms Time] [2021-11-07 14:49:25,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15570 states. [2021-11-07 14:49:26,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15570 to 15542. [2021-11-07 14:49:26,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15542 states, 15116 states have (on average 1.5320190526594337) internal successors, (23158), 15209 states have internal predecessors, (23158), 320 states have call successors, (320), 96 states have call predecessors, (320), 96 states have return successors, (320), 312 states have call predecessors, (320), 320 states have call successors, (320) [2021-11-07 14:49:26,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15542 states to 15542 states and 23798 transitions. [2021-11-07 14:49:26,160 INFO L78 Accepts]: Start accepts. Automaton has 15542 states and 23798 transitions. Word has length 214 [2021-11-07 14:49:26,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:49:26,161 INFO L470 AbstractCegarLoop]: Abstraction has 15542 states and 23798 transitions. [2021-11-07 14:49:26,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 2 states have internal predecessors, (214), 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 14:49:26,162 INFO L276 IsEmpty]: Start isEmpty. Operand 15542 states and 23798 transitions. [2021-11-07 14:49:26,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-07 14:49:26,164 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:49:26,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:26,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 14:49:26,165 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 14:49:26,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:49:26,166 INFO L85 PathProgramCache]: Analyzing trace with hash 918707819, now seen corresponding path program 1 times [2021-11-07 14:49:26,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:49:26,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155443159] [2021-11-07 14:49:26,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:49:26,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:49:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:49:26,618 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 14:49:26,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:49:26,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155443159] [2021-11-07 14:49:26,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155443159] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:49:26,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:49:26,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 14:49:26,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322478051] [2021-11-07 14:49:26,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:49:26,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 14:49:26,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:49:26,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 14:49:26,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 14:49:26,621 INFO L87 Difference]: Start difference. First operand 15542 states and 23798 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 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 14:49:27,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:49:27,214 INFO L93 Difference]: Finished difference Result 27085 states and 41532 transitions. [2021-11-07 14:49:27,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 14:49:27,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 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 216 [2021-11-07 14:49:27,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:49:27,250 INFO L225 Difference]: With dead ends: 27085 [2021-11-07 14:49:27,253 INFO L226 Difference]: Without dead ends: 11740 [2021-11-07 14:49:27,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.14ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:49:27,291 INFO L933 BasicCegarLoop]: 9820 mSDtfsCounter, 9900 mSDsluCounter, 6147 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 188.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9900 SdHoareTripleChecker+Valid, 15967 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.89ms SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 214.33ms IncrementalHoareTripleChecker+Time [2021-11-07 14:49:27,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9900 Valid, 15967 Invalid, 72 Unknown, 0 Unchecked, 36.89ms Time], IncrementalHoareTripleChecker [35 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 214.33ms Time] [2021-11-07 14:49:27,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11740 states. [2021-11-07 14:49:27,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11740 to 11740. [2021-11-07 14:49:27,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11740 states, 11418 states have (on average 1.5289893151164828) internal successors, (17458), 11490 states have internal predecessors, (17458), 240 states have call successors, (240), 72 states have call predecessors, (240), 72 states have return successors, (240), 234 states have call predecessors, (240), 240 states have call successors, (240) [2021-11-07 14:49:27,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11740 states to 11740 states and 17938 transitions. [2021-11-07 14:49:27,560 INFO L78 Accepts]: Start accepts. Automaton has 11740 states and 17938 transitions. Word has length 216 [2021-11-07 14:49:27,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:49:27,562 INFO L470 AbstractCegarLoop]: Abstraction has 11740 states and 17938 transitions. [2021-11-07 14:49:27,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 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 14:49:27,563 INFO L276 IsEmpty]: Start isEmpty. Operand 11740 states and 17938 transitions. [2021-11-07 14:49:27,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-11-07 14:49:27,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:49:27,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:27,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 14:49:27,570 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 14:49:27,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:49:27,571 INFO L85 PathProgramCache]: Analyzing trace with hash -901076384, now seen corresponding path program 1 times [2021-11-07 14:49:27,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:49:27,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379101791] [2021-11-07 14:49:27,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:49:27,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:49:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:49:28,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-07 14:49:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:49:28,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-07 14:49:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:49:28,145 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 14:49:28,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:49:28,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379101791] [2021-11-07 14:49:28,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379101791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:49:28,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:49:28,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 14:49:28,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96364017] [2021-11-07 14:49:28,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:49:28,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 14:49:28,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:49:28,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 14:49:28,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 14:49:28,148 INFO L87 Difference]: Start difference. First operand 11740 states and 17938 transitions. Second operand has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 5 states have internal predecessors, (244), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 14:49:30,211 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:49:32,311 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:49:39,005 WARN L515 Checker$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 14:49:48,806 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:49:51,033 WARN L515 Checker$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 14:49:52,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:49:55,015 WARN L515 Checker$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 14:49:57,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:49:58,476 WARN L515 Checker$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 14:50:02,855 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:50:04,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:50:06,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:50:06,602 INFO L93 Difference]: Finished difference Result 46667 states and 72246 transitions. [2021-11-07 14:50:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 14:50:06,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 5 states have internal predecessors, (244), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 251 [2021-11-07 14:50:06,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:50:06,753 INFO L225 Difference]: With dead ends: 46667 [2021-11-07 14:50:06,753 INFO L226 Difference]: Without dead ends: 35124 [2021-11-07 14:50:06,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 43.44ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-07 14:50:06,784 INFO L933 BasicCegarLoop]: 6396 mSDtfsCounter, 13055 mSDsluCounter, 26925 mSDsCounter, 0 mSdLazyCounter, 3162 mSolverCounterSat, 425 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35752.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13124 SdHoareTripleChecker+Valid, 33321 SdHoareTripleChecker+Invalid, 3595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 69.17ms SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 3162 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37562.22ms IncrementalHoareTripleChecker+Time [2021-11-07 14:50:06,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13124 Valid, 33321 Invalid, 3595 Unknown, 0 Unchecked, 69.17ms Time], IncrementalHoareTripleChecker [425 Valid, 3162 Invalid, 8 Unknown, 0 Unchecked, 37562.22ms Time] [2021-11-07 14:50:06,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35124 states. [2021-11-07 14:50:07,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35124 to 34236. [2021-11-07 14:50:07,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34236 states, 33236 states have (on average 1.5302082079672643) internal successors, (50858), 33452 states have internal predecessors, (50858), 732 states have call successors, (732), 216 states have call predecessors, (732), 258 states have return successors, (1122), 741 states have call predecessors, (1122), 732 states have call successors, (1122) [2021-11-07 14:50:07,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34236 states to 34236 states and 52712 transitions. [2021-11-07 14:50:07,982 INFO L78 Accepts]: Start accepts. Automaton has 34236 states and 52712 transitions. Word has length 251 [2021-11-07 14:50:07,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:50:07,983 INFO L470 AbstractCegarLoop]: Abstraction has 34236 states and 52712 transitions. [2021-11-07 14:50:07,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 5 states have internal predecessors, (244), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 14:50:07,983 INFO L276 IsEmpty]: Start isEmpty. Operand 34236 states and 52712 transitions. [2021-11-07 14:50:07,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2021-11-07 14:50:07,988 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:50:07,988 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:07,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 14:50:07,989 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 14:50:07,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:50:07,990 INFO L85 PathProgramCache]: Analyzing trace with hash 151531793, now seen corresponding path program 1 times [2021-11-07 14:50:07,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:50:07,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657965204] [2021-11-07 14:50:07,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:50:07,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:50:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:50:08,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-11-07 14:50:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:50:08,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-07 14:50:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:50:08,615 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 14:50:08,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:50:08,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657965204] [2021-11-07 14:50:08,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657965204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:50:08,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:50:08,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 14:50:08,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49478587] [2021-11-07 14:50:08,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:50:08,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 14:50:08,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:50:08,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 14:50:08,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 14:50:08,617 INFO L87 Difference]: Start difference. First operand 34236 states and 52712 transitions. Second operand has 6 states, 6 states have (on average 40.833333333333336) internal successors, (245), 5 states have internal predecessors, (245), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 14:50:10,693 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:50:12,776 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:50:15,576 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:50:20,153 WARN L515 Checker$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 14:50:27,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:50:33,553 WARN L515 Checker$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 14:50:36,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:50:38,917 WARN L515 Checker$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 14:50:45,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:50:47,791 WARN L515 Checker$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 14:50:49,332 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:50:51,420 WARN L515 Checker$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 14:50:53,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:50:53,371 INFO L93 Difference]: Finished difference Result 136583 states and 213066 transitions. [2021-11-07 14:50:53,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 14:50:53,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.833333333333336) internal successors, (245), 5 states have internal predecessors, (245), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 252 [2021-11-07 14:50:53,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:50:53,916 INFO L225 Difference]: With dead ends: 136583 [2021-11-07 14:50:53,916 INFO L226 Difference]: Without dead ends: 102544 [2021-11-07 14:50:54,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 57.22ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-07 14:50:54,001 INFO L933 BasicCegarLoop]: 6334 mSDtfsCounter, 18321 mSDsluCounter, 21236 mSDsCounter, 0 mSdLazyCounter, 2762 mSolverCounterSat, 689 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40656.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18389 SdHoareTripleChecker+Valid, 27570 SdHoareTripleChecker+Invalid, 3462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 67.47ms SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 2762 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42585.79ms IncrementalHoareTripleChecker+Time [2021-11-07 14:50:54,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18389 Valid, 27570 Invalid, 3462 Unknown, 0 Unchecked, 67.47ms Time], IncrementalHoareTripleChecker [689 Valid, 2762 Invalid, 11 Unknown, 0 Unchecked, 42585.79ms Time] [2021-11-07 14:50:54,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102544 states. [2021-11-07 14:50:56,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102544 to 100662. [2021-11-07 14:50:56,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100662 states, 97583 states have (on average 1.5292622690427635) internal successors, (149230), 98246 states have internal predecessors, (149230), 2211 states have call successors, (2211), 648 states have call predecessors, (2211), 858 states have return successors, (4728), 2292 states have call predecessors, (4728), 2211 states have call successors, (4728) [2021-11-07 14:50:57,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100662 states to 100662 states and 156169 transitions. [2021-11-07 14:50:57,343 INFO L78 Accepts]: Start accepts. Automaton has 100662 states and 156169 transitions. Word has length 252 [2021-11-07 14:50:57,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:50:57,344 INFO L470 AbstractCegarLoop]: Abstraction has 100662 states and 156169 transitions. [2021-11-07 14:50:57,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.833333333333336) internal successors, (245), 5 states have internal predecessors, (245), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 14:50:57,344 INFO L276 IsEmpty]: Start isEmpty. Operand 100662 states and 156169 transitions. [2021-11-07 14:50:57,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-07 14:50:57,349 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:50:57,349 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:57,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 14:50:57,350 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 14:50:57,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:50:57,350 INFO L85 PathProgramCache]: Analyzing trace with hash 151698866, now seen corresponding path program 1 times [2021-11-07 14:50:57,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:50:57,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018522777] [2021-11-07 14:50:57,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:50:57,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:50:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:50:57,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-07 14:50:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:50:57,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-07 14:50:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:50:57,756 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 14:50:57,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:50:57,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018522777] [2021-11-07 14:50:57,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018522777] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:50:57,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:50:57,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 14:50:57,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671951638] [2021-11-07 14:50:57,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:50:57,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 14:50:57,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:50:57,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 14:50:57,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 14:50:57,758 INFO L87 Difference]: Start difference. First operand 100662 states and 156169 transitions. Second operand has 6 states, 6 states have (on average 41.0) internal successors, (246), 5 states have internal predecessors, (246), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 14:50:59,931 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:51:02,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:51:08,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:51:20,681 WARN L515 Checker$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 14:51:25,138 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:51:31,975 WARN L515 Checker$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 14:51:34,575 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 14:51:40,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:51:40,123 INFO L93 Difference]: Finished difference Result 401399 states and 633473 transitions. [2021-11-07 14:51:40,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 14:51:40,124 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 41.0) internal successors, (246), 5 states have internal predecessors, (246), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 253 [2021-11-07 14:51:40,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:51:41,785 INFO L225 Difference]: With dead ends: 401399 [2021-11-07 14:51:41,785 INFO L226 Difference]: Without dead ends: 300934 [2021-11-07 14:51:42,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 78.43ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-07 14:51:42,048 INFO L933 BasicCegarLoop]: 6303 mSDtfsCounter, 12873 mSDsluCounter, 31455 mSDsCounter, 0 mSdLazyCounter, 3266 mSolverCounterSat, 422 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33491.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12941 SdHoareTripleChecker+Valid, 37758 SdHoareTripleChecker+Invalid, 3695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 78.25ms SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 3266 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35393.18ms IncrementalHoareTripleChecker+Time [2021-11-07 14:51:42,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12941 Valid, 37758 Invalid, 3695 Unknown, 0 Unchecked, 78.25ms Time], IncrementalHoareTripleChecker [422 Valid, 3266 Invalid, 7 Unknown, 0 Unchecked, 35393.18ms Time] [2021-11-07 14:51:42,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300934 states. [2021-11-07 14:51:49,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300934 to 296612. [2021-11-07 14:51:50,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296612 states, 287224 states have (on average 1.5279712001782582) internal successors, (438870), 289252 states have internal predecessors, (438870), 6636 states have call successors, (6636), 1944 states have call predecessors, (6636), 2742 states have return successors, (19728), 6987 states have call predecessors, (19728), 6636 states have call successors, (19728) [2021-11-07 14:51:51,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296612 states to 296612 states and 465234 transitions. [2021-11-07 14:51:51,918 INFO L78 Accepts]: Start accepts. Automaton has 296612 states and 465234 transitions. Word has length 253 [2021-11-07 14:51:51,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:51:51,919 INFO L470 AbstractCegarLoop]: Abstraction has 296612 states and 465234 transitions. [2021-11-07 14:51:51,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.0) internal successors, (246), 5 states have internal predecessors, (246), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 14:51:51,919 INFO L276 IsEmpty]: Start isEmpty. Operand 296612 states and 465234 transitions. [2021-11-07 14:51:51,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-07 14:51:51,925 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:51:51,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:51,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 14:51:51,925 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 14:51:51,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:51:51,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1885930083, now seen corresponding path program 1 times [2021-11-07 14:51:51,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:51:51,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093832201] [2021-11-07 14:51:51,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:51:51,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:51:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:51:52,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-07 14:51:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:51:52,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-07 14:51:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:51:52,315 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 14:51:52,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:51:52,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093832201] [2021-11-07 14:51:52,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093832201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:51:52,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:51:52,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 14:51:52,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733556282] [2021-11-07 14:51:52,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:51:52,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 14:51:52,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:51:52,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 14:51:52,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 14:51:52,317 INFO L87 Difference]: Start difference. First operand 296612 states and 465234 transitions. Second operand has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 5 states have internal predecessors, (247), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 14:51:54,388 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 14:51:56,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:52:02,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:52:07,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:52:10,203 WARN L515 Checker$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 14:52:13,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:52:16,234 WARN L515 Checker$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 14:52:18,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:52:28,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:52:32,153 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 []