./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 19525e6f83ed492183d9a21eaa90e9685989ff90c55473d8827091d7561f2601 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:50:26,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:50:26,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:50:26,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:50:26,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:50:26,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:50:26,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:50:26,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:50:26,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:50:26,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:50:26,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:50:26,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:50:26,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:50:26,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:50:26,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:50:26,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:50:26,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:50:26,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:50:26,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:50:26,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:50:26,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:50:26,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:50:26,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:50:26,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:50:27,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:50:27,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:50:27,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:50:27,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:50:27,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:50:27,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:50:27,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:50:27,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:50:27,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:50:27,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:50:27,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:50:27,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:50:27,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:50:27,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:50:27,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:50:27,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:50:27,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:50:27,031 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-09 10:50:27,084 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:50:27,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:50:27,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:50:27,085 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:50:27,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:50:27,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:50:27,087 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:50:27,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:50:27,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:50:27,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:50:27,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 10:50:27,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 10:50:27,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 10:50:27,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:50:27,088 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:50:27,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 10:50:27,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:50:27,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:50:27,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 10:50:27,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:50:27,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:50:27,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 10:50:27,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 10:50:27,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:50:27,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 10:50:27,098 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 10:50:27,098 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 10:50:27,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 10:50:27,099 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:50:27,099 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19525e6f83ed492183d9a21eaa90e9685989ff90c55473d8827091d7561f2601 [2021-11-09 10:50:27,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:50:27,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:50:27,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:50:27,392 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:50:27,394 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:50:27,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2021-11-09 10:50:27,478 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX/data/a2b806412/a7a5864eece54b469c22302ed77c26e8/FLAG487e9bedb [2021-11-09 10:50:28,434 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:50:28,436 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2021-11-09 10:50:28,511 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX/data/a2b806412/a7a5864eece54b469c22302ed77c26e8/FLAG487e9bedb [2021-11-09 10:50:28,853 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX/data/a2b806412/a7a5864eece54b469c22302ed77c26e8 [2021-11-09 10:50:28,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:50:28,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:50:28,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:50:28,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:50:28,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:50:28,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:50:28" (1/1) ... [2021-11-09 10:50:28,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31e8f543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:50:28, skipping insertion in model container [2021-11-09 10:50:28,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:50:28" (1/1) ... [2021-11-09 10:50:28,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:50:29,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:50:31,664 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i[265597,265610] [2021-11-09 10:50:31,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:50:31,987 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:50:32,492 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i[265597,265610] [2021-11-09 10:50:32,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:50:32,656 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:50:32,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:50:32 WrapperNode [2021-11-09 10:50:32,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:50:32,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:50:32,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:50:32,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:50:32,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:50:32" (1/1) ... [2021-11-09 10:50:32,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:50:32" (1/1) ... [2021-11-09 10:50:35,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:50:35,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:50:35,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:50:35,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:50:35,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:50:32" (1/1) ... [2021-11-09 10:50:35,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:50:32" (1/1) ... [2021-11-09 10:50:36,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:50:32" (1/1) ... [2021-11-09 10:50:36,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:50:32" (1/1) ... [2021-11-09 10:50:38,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:50:32" (1/1) ... [2021-11-09 10:50:38,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:50:32" (1/1) ... [2021-11-09 10:50:38,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:50:32" (1/1) ... [2021-11-09 10:50:39,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:50:39,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:50:39,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:50:39,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:50:39,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:50:32" (1/1) ... [2021-11-09 10:50:39,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:50:39,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:50:39,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 10:50:39,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767e7dc1-decb-4b4b-8667-aa9d673b14d3/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 10:50:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 10:50:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-09 10:50:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure free_smi_msg_list [2021-11-09 10:50:39,542 INFO L138 BoogieDeclarations]: Found implementation of procedure free_smi_msg_list [2021-11-09 10:50:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-09 10:50:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 10:50:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-09 10:50:39,543 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-09 10:50:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 10:50:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 10:50:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-09 10:50:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-09 10:50:39,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-09 10:50:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure intf_free [2021-11-09 10:50:39,544 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_free [2021-11-09 10:50:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:50:39,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:50:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-09 10:50:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-09 10:50:39,545 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-09 10:50:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-09 10:50:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-09 10:50:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_smi_msg [2021-11-09 10:50:39,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_smi_msg [2021-11-09 10:50:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:50:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 10:50:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 10:50:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure clean_up_interface_data [2021-11-09 10:50:39,547 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_up_interface_data [2021-11-09 10:50:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 10:50:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure free_recv_msg_list [2021-11-09 10:50:39,547 INFO L138 BoogieDeclarations]: Found implementation of procedure free_recv_msg_list [2021-11-09 10:50:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:50:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2021-11-09 10:50:39,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2021-11-09 10:50:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-09 10:53:22,831 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:53:22,831 INFO L299 CfgBuilder]: Removed 11838 assume(true) statements. [2021-11-09 10:53:22,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:53:22 BoogieIcfgContainer [2021-11-09 10:53:22,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:53:22,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 10:53:22,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 10:53:22,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 10:53:22,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:50:28" (1/3) ... [2021-11-09 10:53:22,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d4aad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:53:22, skipping insertion in model container [2021-11-09 10:53:22,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:50:32" (2/3) ... [2021-11-09 10:53:22,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d4aad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:53:22, skipping insertion in model container [2021-11-09 10:53:22,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:53:22" (3/3) ... [2021-11-09 10:53:22,856 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2021-11-09 10:53:22,862 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 10:53:22,862 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-09 10:53:22,968 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 10:53:22,974 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 [2021-11-09 10:53:22,975 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-09 10:53:23,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 14304 states, 14100 states have (on average 1.4726241134751774) internal successors, (20764), 14151 states have internal predecessors, (20764), 184 states have call successors, (184), 9 states have call predecessors, (184), 9 states have return successors, (184), 180 states have call predecessors, (184), 184 states have call successors, (184) [2021-11-09 10:53:23,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-09 10:53:23,234 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:53:23,235 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:53:23,236 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)] === [2021-11-09 10:53:23,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:53:23,248 INFO L85 PathProgramCache]: Analyzing trace with hash 840024965, now seen corresponding path program 1 times [2021-11-09 10:53:23,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:53:23,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367276867] [2021-11-09 10:53:23,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:53:23,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:53:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:53:24,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:53:24,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:53:24,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367276867] [2021-11-09 10:53:24,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367276867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:53:24,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:53:24,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:53:24,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813724521] [2021-11-09 10:53:24,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:53:24,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:53:24,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:53:24,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:53:24,427 INFO L87 Difference]: Start difference. First operand has 14304 states, 14100 states have (on average 1.4726241134751774) internal successors, (20764), 14151 states have internal predecessors, (20764), 184 states have call successors, (184), 9 states have call predecessors, (184), 9 states have return successors, (184), 180 states have call predecessors, (184), 184 states have call successors, (184) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:53:27,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:53:27,854 INFO L93 Difference]: Finished difference Result 42849 states and 63684 transitions. [2021-11-09 10:53:27,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:53:27,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-09 10:53:27,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:53:28,108 INFO L225 Difference]: With dead ends: 42849 [2021-11-09 10:53:28,109 INFO L226 Difference]: Without dead ends: 28544 [2021-11-09 10:53:28,164 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:53:28,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28544 states. [2021-11-09 10:53:29,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28544 to 28540. [2021-11-09 10:53:29,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28540 states, 28144 states have (on average 1.4654988629903354) internal successors, (41245), 28235 states have internal predecessors, (41245), 368 states have call successors, (368), 18 states have call predecessors, (368), 18 states have return successors, (368), 360 states have call predecessors, (368), 368 states have call successors, (368) [2021-11-09 10:53:29,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28540 states to 28540 states and 41981 transitions. [2021-11-09 10:53:29,898 INFO L78 Accepts]: Start accepts. Automaton has 28540 states and 41981 transitions. Word has length 14 [2021-11-09 10:53:29,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:53:29,900 INFO L470 AbstractCegarLoop]: Abstraction has 28540 states and 41981 transitions. [2021-11-09 10:53:29,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:53:29,901 INFO L276 IsEmpty]: Start isEmpty. Operand 28540 states and 41981 transitions. [2021-11-09 10:53:29,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-09 10:53:29,904 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:53:29,905 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:53:29,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 10:53:29,907 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)] === [2021-11-09 10:53:29,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:53:29,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1940844664, now seen corresponding path program 1 times [2021-11-09 10:53:29,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:53:29,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878466691] [2021-11-09 10:53:29,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:53:29,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:53:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:53:30,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:53:30,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:53:30,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878466691] [2021-11-09 10:53:30,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878466691] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:53:30,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:53:30,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 10:53:30,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941310323] [2021-11-09 10:53:30,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:53:30,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:53:30,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:53:30,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:53:30,177 INFO L87 Difference]: Start difference. First operand 28540 states and 41981 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:53:32,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:53:32,039 INFO L93 Difference]: Finished difference Result 85591 states and 125909 transitions. [2021-11-09 10:53:32,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:53:32,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-09 10:53:32,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:53:32,276 INFO L225 Difference]: With dead ends: 85591 [2021-11-09 10:53:32,277 INFO L226 Difference]: Without dead ends: 57054 [2021-11-09 10:53:32,346 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:53:32,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57054 states. [2021-11-09 10:53:34,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57054 to 57026. [2021-11-09 10:53:34,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57026 states, 56244 states have (on average 1.4656141099495057) internal successors, (82432), 56417 states have internal predecessors, (82432), 736 states have call successors, (736), 36 states have call predecessors, (736), 36 states have return successors, (736), 720 states have call predecessors, (736), 736 states have call successors, (736) [2021-11-09 10:53:34,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57026 states to 57026 states and 83904 transitions. [2021-11-09 10:53:34,584 INFO L78 Accepts]: Start accepts. Automaton has 57026 states and 83904 transitions. Word has length 17 [2021-11-09 10:53:34,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:53:34,585 INFO L470 AbstractCegarLoop]: Abstraction has 57026 states and 83904 transitions. [2021-11-09 10:53:34,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:53:34,586 INFO L276 IsEmpty]: Start isEmpty. Operand 57026 states and 83904 transitions. [2021-11-09 10:53:34,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-09 10:53:34,593 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:53:34,593 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:53:34,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 10:53:34,593 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)] === [2021-11-09 10:53:34,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:53:34,604 INFO L85 PathProgramCache]: Analyzing trace with hash -545448925, now seen corresponding path program 1 times [2021-11-09 10:53:34,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:53:34,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941853067] [2021-11-09 10:53:34,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:53:34,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:53:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:53:34,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:53:34,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:53:34,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941853067] [2021-11-09 10:53:34,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941853067] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:53:34,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:53:34,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:53:34,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294290494] [2021-11-09 10:53:34,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:53:34,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:53:34,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:53:34,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:53:34,879 INFO L87 Difference]: Start difference. First operand 57026 states and 83904 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:53:38,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:53:38,251 INFO L93 Difference]: Finished difference Result 99809 states and 146849 transitions. [2021-11-09 10:53:38,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:53:38,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-09 10:53:38,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:53:38,436 INFO L225 Difference]: With dead ends: 99809 [2021-11-09 10:53:38,436 INFO L226 Difference]: Without dead ends: 42786 [2021-11-09 10:53:38,526 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:53:38,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42786 states. [2021-11-09 10:53:40,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42786 to 42786. [2021-11-09 10:53:40,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42786 states, 42197 states have (on average 1.4655070265658696) internal successors, (61840), 42329 states have internal predecessors, (61840), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-09 10:53:40,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42786 states to 42786 states and 62944 transitions. [2021-11-09 10:53:40,437 INFO L78 Accepts]: Start accepts. Automaton has 42786 states and 62944 transitions. Word has length 19 [2021-11-09 10:53:40,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:53:40,438 INFO L470 AbstractCegarLoop]: Abstraction has 42786 states and 62944 transitions. [2021-11-09 10:53:40,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:53:40,438 INFO L276 IsEmpty]: Start isEmpty. Operand 42786 states and 62944 transitions. [2021-11-09 10:53:40,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-09 10:53:40,442 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:53:40,442 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:53:40,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 10:53:40,443 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)] === [2021-11-09 10:53:40,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:53:40,445 INFO L85 PathProgramCache]: Analyzing trace with hash 578835819, now seen corresponding path program 1 times [2021-11-09 10:53:40,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:53:40,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496529458] [2021-11-09 10:53:40,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:53:40,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:53:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:53:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-09 10:53:40,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:53:40,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496529458] [2021-11-09 10:53:40,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496529458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:53:40,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:53:40,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:53:40,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079850187] [2021-11-09 10:53:40,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:53:40,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:53:40,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:53:40,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:53:40,703 INFO L87 Difference]: Start difference. First operand 42786 states and 62944 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:53:44,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:53:44,361 INFO L93 Difference]: Finished difference Result 42786 states and 62944 transitions. [2021-11-09 10:53:44,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:53:44,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-09 10:53:44,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:53:44,495 INFO L225 Difference]: With dead ends: 42786 [2021-11-09 10:53:44,495 INFO L226 Difference]: Without dead ends: 42782 [2021-11-09 10:53:44,506 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:53:44,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42782 states. [2021-11-09 10:53:45,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42782 to 42782. [2021-11-09 10:53:46,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42782 states, 42195 states have (on average 1.465434293162697) internal successors, (61834), 42325 states have internal predecessors, (61834), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-09 10:53:46,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42782 states to 42782 states and 62938 transitions. [2021-11-09 10:53:46,168 INFO L78 Accepts]: Start accepts. Automaton has 42782 states and 62938 transitions. Word has length 29 [2021-11-09 10:53:46,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:53:46,169 INFO L470 AbstractCegarLoop]: Abstraction has 42782 states and 62938 transitions. [2021-11-09 10:53:46,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:53:46,170 INFO L276 IsEmpty]: Start isEmpty. Operand 42782 states and 62938 transitions. [2021-11-09 10:53:46,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-09 10:53:46,171 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:53:46,172 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:53:46,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 10:53:46,172 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-09 10:53:46,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:53:46,173 INFO L85 PathProgramCache]: Analyzing trace with hash 764091808, now seen corresponding path program 1 times [2021-11-09 10:53:46,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:53:46,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197936901] [2021-11-09 10:53:46,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:53:46,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:53:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:53:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-09 10:53:46,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:53:46,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197936901] [2021-11-09 10:53:46,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197936901] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:53:46,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:53:46,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:53:46,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243488669] [2021-11-09 10:53:46,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:53:46,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:53:46,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:53:46,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:53:46,447 INFO L87 Difference]: Start difference. First operand 42782 states and 62938 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:53:49,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:53:49,914 INFO L93 Difference]: Finished difference Result 42782 states and 62938 transitions. [2021-11-09 10:53:49,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:53:49,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-09 10:53:49,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:53:50,022 INFO L225 Difference]: With dead ends: 42782 [2021-11-09 10:53:50,022 INFO L226 Difference]: Without dead ends: 42780 [2021-11-09 10:53:50,033 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:53:50,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42780 states. [2021-11-09 10:53:51,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42780 to 42780. [2021-11-09 10:53:51,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42780 states, 42194 states have (on average 1.4654216239275726) internal successors, (61832), 42323 states have internal predecessors, (61832), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-09 10:53:51,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42780 states to 42780 states and 62936 transitions. [2021-11-09 10:53:51,845 INFO L78 Accepts]: Start accepts. Automaton has 42780 states and 62936 transitions. Word has length 30 [2021-11-09 10:53:51,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:53:51,845 INFO L470 AbstractCegarLoop]: Abstraction has 42780 states and 62936 transitions. [2021-11-09 10:53:51,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:53:51,846 INFO L276 IsEmpty]: Start isEmpty. Operand 42780 states and 62936 transitions. [2021-11-09 10:53:51,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-09 10:53:51,847 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:53:51,848 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:53:51,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 10:53:51,848 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-09 10:53:51,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:53:51,849 INFO L85 PathProgramCache]: Analyzing trace with hash -2082907115, now seen corresponding path program 1 times [2021-11-09 10:53:51,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:53:51,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165095613] [2021-11-09 10:53:51,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:53:51,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:53:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:53:52,080 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-09 10:53:52,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:53:52,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165095613] [2021-11-09 10:53:52,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165095613] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:53:52,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:53:52,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:53:52,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867586547] [2021-11-09 10:53:52,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:53:52,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:53:52,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:53:52,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:53:52,088 INFO L87 Difference]: Start difference. First operand 42780 states and 62936 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:53:55,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:53:55,467 INFO L93 Difference]: Finished difference Result 42780 states and 62936 transitions. [2021-11-09 10:53:55,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:53:55,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-09 10:53:55,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:53:55,560 INFO L225 Difference]: With dead ends: 42780 [2021-11-09 10:53:55,561 INFO L226 Difference]: Without dead ends: 42778 [2021-11-09 10:53:55,571 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:53:55,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42778 states. [2021-11-09 10:53:56,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42778 to 42778. [2021-11-09 10:53:56,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42778 states, 42193 states have (on average 1.465408954091911) internal successors, (61830), 42321 states have internal predecessors, (61830), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-09 10:53:56,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42778 states to 42778 states and 62934 transitions. [2021-11-09 10:53:56,856 INFO L78 Accepts]: Start accepts. Automaton has 42778 states and 62934 transitions. Word has length 31 [2021-11-09 10:53:56,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:53:56,856 INFO L470 AbstractCegarLoop]: Abstraction has 42778 states and 62934 transitions. [2021-11-09 10:53:56,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:53:56,857 INFO L276 IsEmpty]: Start isEmpty. Operand 42778 states and 62934 transitions. [2021-11-09 10:53:56,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-09 10:53:56,858 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:53:56,859 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:53:56,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 10:53:56,859 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-09 10:53:56,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:53:56,860 INFO L85 PathProgramCache]: Analyzing trace with hash -145560502, now seen corresponding path program 1 times [2021-11-09 10:53:56,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:53:56,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593120812] [2021-11-09 10:53:56,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:53:56,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:53:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:53:57,214 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-09 10:53:57,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:53:57,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593120812] [2021-11-09 10:53:57,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593120812] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:53:57,215 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:53:57,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:53:57,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257950512] [2021-11-09 10:53:57,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:53:57,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:53:57,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:53:57,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:53:57,217 INFO L87 Difference]: Start difference. First operand 42778 states and 62934 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:54:00,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:54:00,449 INFO L93 Difference]: Finished difference Result 42778 states and 62934 transitions. [2021-11-09 10:54:00,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:54:00,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-09 10:54:00,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:54:00,554 INFO L225 Difference]: With dead ends: 42778 [2021-11-09 10:54:00,554 INFO L226 Difference]: Without dead ends: 42776 [2021-11-09 10:54:00,567 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:54:00,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42776 states. [2021-11-09 10:54:02,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42776 to 42776. [2021-11-09 10:54:02,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42776 states, 42192 states have (on average 1.4653962836556693) internal successors, (61828), 42319 states have internal predecessors, (61828), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-09 10:54:02,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42776 states to 42776 states and 62932 transitions. [2021-11-09 10:54:02,225 INFO L78 Accepts]: Start accepts. Automaton has 42776 states and 62932 transitions. Word has length 32 [2021-11-09 10:54:02,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:54:02,226 INFO L470 AbstractCegarLoop]: Abstraction has 42776 states and 62932 transitions. [2021-11-09 10:54:02,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:54:02,226 INFO L276 IsEmpty]: Start isEmpty. Operand 42776 states and 62932 transitions. [2021-11-09 10:54:02,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-09 10:54:02,227 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:54:02,227 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:54:02,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 10:54:02,228 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-09 10:54:02,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:54:02,229 INFO L85 PathProgramCache]: Analyzing trace with hash -217357633, now seen corresponding path program 1 times [2021-11-09 10:54:02,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:54:02,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783957768] [2021-11-09 10:54:02,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:54:02,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:54:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:54:02,408 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-09 10:54:02,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:54:02,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783957768] [2021-11-09 10:54:02,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783957768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:54:02,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:54:02,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:54:02,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356526969] [2021-11-09 10:54:02,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:54:02,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:54:02,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:54:02,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:54:02,411 INFO L87 Difference]: Start difference. First operand 42776 states and 62932 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:54:05,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:54:05,859 INFO L93 Difference]: Finished difference Result 42776 states and 62932 transitions. [2021-11-09 10:54:05,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:54:05,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-09 10:54:05,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:54:05,951 INFO L225 Difference]: With dead ends: 42776 [2021-11-09 10:54:05,952 INFO L226 Difference]: Without dead ends: 42774 [2021-11-09 10:54:05,964 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:54:06,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42774 states. [2021-11-09 10:54:07,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42774 to 42774. [2021-11-09 10:54:07,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42774 states, 42191 states have (on average 1.465383612618805) internal successors, (61826), 42317 states have internal predecessors, (61826), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-09 10:54:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42774 states to 42774 states and 62930 transitions. [2021-11-09 10:54:07,476 INFO L78 Accepts]: Start accepts. Automaton has 42774 states and 62930 transitions. Word has length 33 [2021-11-09 10:54:07,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:54:07,476 INFO L470 AbstractCegarLoop]: Abstraction has 42774 states and 62930 transitions. [2021-11-09 10:54:07,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:54:07,476 INFO L276 IsEmpty]: Start isEmpty. Operand 42774 states and 62930 transitions. [2021-11-09 10:54:07,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-09 10:54:07,478 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:54:07,478 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:54:07,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-09 10:54:07,479 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-09 10:54:07,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:54:07,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1851898612, now seen corresponding path program 1 times [2021-11-09 10:54:07,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:54:07,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51377561] [2021-11-09 10:54:07,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:54:07,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:54:07,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:54:07,703 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-09 10:54:07,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:54:07,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51377561] [2021-11-09 10:54:07,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51377561] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:54:07,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:54:07,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:54:07,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484843572] [2021-11-09 10:54:07,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:54:07,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:54:07,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:54:07,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:54:07,706 INFO L87 Difference]: Start difference. First operand 42774 states and 62930 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:54:11,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:54:11,187 INFO L93 Difference]: Finished difference Result 42774 states and 62930 transitions. [2021-11-09 10:54:11,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:54:11,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-09 10:54:11,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:54:11,268 INFO L225 Difference]: With dead ends: 42774 [2021-11-09 10:54:11,268 INFO L226 Difference]: Without dead ends: 42772 [2021-11-09 10:54:11,279 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:54:11,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42772 states. [2021-11-09 10:54:12,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42772 to 42772. [2021-11-09 10:54:12,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42772 states, 42190 states have (on average 1.4653709409812752) internal successors, (61824), 42315 states have internal predecessors, (61824), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-09 10:54:12,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42772 states to 42772 states and 62928 transitions. [2021-11-09 10:54:12,860 INFO L78 Accepts]: Start accepts. Automaton has 42772 states and 62928 transitions. Word has length 34 [2021-11-09 10:54:12,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:54:12,861 INFO L470 AbstractCegarLoop]: Abstraction has 42772 states and 62928 transitions. [2021-11-09 10:54:12,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:54:12,861 INFO L276 IsEmpty]: Start isEmpty. Operand 42772 states and 62928 transitions. [2021-11-09 10:54:12,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-09 10:54:12,863 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:54:12,863 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:54:12,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 10:54:12,863 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-09 10:54:12,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:54:12,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1574332777, now seen corresponding path program 1 times [2021-11-09 10:54:12,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:54:12,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178898562] [2021-11-09 10:54:12,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:54:12,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:54:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:54:13,051 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-09 10:54:13,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:54:13,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178898562] [2021-11-09 10:54:13,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178898562] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:54:13,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:54:13,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:54:13,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355467156] [2021-11-09 10:54:13,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:54:13,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:54:13,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:54:13,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:54:13,061 INFO L87 Difference]: Start difference. First operand 42772 states and 62928 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:54:16,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:54:16,565 INFO L93 Difference]: Finished difference Result 42772 states and 62928 transitions. [2021-11-09 10:54:16,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:54:16,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-09 10:54:16,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:54:16,641 INFO L225 Difference]: With dead ends: 42772 [2021-11-09 10:54:16,641 INFO L226 Difference]: Without dead ends: 42770 [2021-11-09 10:54:16,652 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:54:16,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42770 states. [2021-11-09 10:54:18,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42770 to 42770. [2021-11-09 10:54:18,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42770 states, 42189 states have (on average 1.4653582687430373) internal successors, (61822), 42313 states have internal predecessors, (61822), 552 states have call successors, (552), 27 states have call predecessors, (552), 27 states have return successors, (552), 540 states have call predecessors, (552), 552 states have call successors, (552) [2021-11-09 10:54:18,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42770 states to 42770 states and 62926 transitions. [2021-11-09 10:54:18,443 INFO L78 Accepts]: Start accepts. Automaton has 42770 states and 62926 transitions. Word has length 35 [2021-11-09 10:54:18,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:54:18,444 INFO L470 AbstractCegarLoop]: Abstraction has 42770 states and 62926 transitions. [2021-11-09 10:54:18,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:54:18,444 INFO L276 IsEmpty]: Start isEmpty. Operand 42770 states and 62926 transitions. [2021-11-09 10:54:18,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-09 10:54:18,446 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:54:18,446 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:54:18,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-09 10:54:18,447 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-09 10:54:18,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:54:18,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1559726494, now seen corresponding path program 1 times [2021-11-09 10:54:18,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:54:18,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772759832] [2021-11-09 10:54:18,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:54:18,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:54:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:54:18,622 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-09 10:54:18,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:54:18,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772759832] [2021-11-09 10:54:18,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772759832] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:54:18,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:54:18,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:54:18,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424724133] [2021-11-09 10:54:18,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:54:18,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:54:18,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:54:18,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:54:18,625 INFO L87 Difference]: Start difference. First operand 42770 states and 62926 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)