./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 29824587617da9a02b15e9129afbb9cf5ee59d8d3dbb506aa4fe0ed84097e2f1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 16:21:13,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 16:21:13,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 16:21:13,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 16:21:13,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 16:21:13,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 16:21:13,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 16:21:13,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 16:21:13,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 16:21:13,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 16:21:13,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 16:21:13,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 16:21:13,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 16:21:13,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 16:21:13,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 16:21:13,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 16:21:13,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 16:21:13,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 16:21:13,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 16:21:13,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 16:21:13,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 16:21:13,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 16:21:13,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 16:21:13,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 16:21:13,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 16:21:13,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 16:21:13,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 16:21:13,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 16:21:13,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 16:21:13,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 16:21:13,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 16:21:13,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 16:21:13,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 16:21:13,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 16:21:13,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 16:21:13,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 16:21:13,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 16:21:13,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 16:21:13,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 16:21:13,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 16:21:13,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 16:21:13,187 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 16:21:13,204 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 16:21:13,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 16:21:13,207 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 16:21:13,207 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 16:21:13,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 16:21:13,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 16:21:13,209 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 16:21:13,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 16:21:13,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 16:21:13,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 16:21:13,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 16:21:13,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 16:21:13,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 16:21:13,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 16:21:13,210 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 16:21:13,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 16:21:13,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 16:21:13,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 16:21:13,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 16:21:13,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:21:13,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 16:21:13,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 16:21:13,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 16:21:13,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 16:21:13,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 16:21:13,212 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 16:21:13,212 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 16:21:13,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 16:21:13,213 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 16:21:13,213 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29824587617da9a02b15e9129afbb9cf5ee59d8d3dbb506aa4fe0ed84097e2f1 [2021-11-06 16:21:13,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 16:21:13,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 16:21:13,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 16:21:13,411 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 16:21:13,415 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 16:21:13,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2021-11-06 16:21:13,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75f777c9e/fdb83e05ccdc4599aa83f74409ea096c/FLAG66fb16a8b [2021-11-06 16:21:14,004 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 16:21:14,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2021-11-06 16:21:14,045 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75f777c9e/fdb83e05ccdc4599aa83f74409ea096c/FLAG66fb16a8b [2021-11-06 16:21:14,179 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75f777c9e/fdb83e05ccdc4599aa83f74409ea096c [2021-11-06 16:21:14,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 16:21:14,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 16:21:14,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 16:21:14,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 16:21:14,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 16:21:14,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:21:14" (1/1) ... [2021-11-06 16:21:14,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47cf8fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:21:14, skipping insertion in model container [2021-11-06 16:21:14,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:21:14" (1/1) ... [2021-11-06 16:21:14,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 16:21:14,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 16:21:15,617 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[314027,314040] [2021-11-06 16:21:15,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:21:15,818 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 16:21:16,039 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[314027,314040] [2021-11-06 16:21:16,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:21:16,173 INFO L208 MainTranslator]: Completed translation [2021-11-06 16:21:16,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:21:16 WrapperNode [2021-11-06 16:21:16,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 16:21:16,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 16:21:16,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 16:21:16,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 16:21:16,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:21:16" (1/1) ... [2021-11-06 16:21:16,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:21:16" (1/1) ... [2021-11-06 16:21:16,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 16:21:16,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 16:21:16,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 16:21:16,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 16:21:16,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:21:16" (1/1) ... [2021-11-06 16:21:16,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:21:16" (1/1) ... [2021-11-06 16:21:16,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:21:16" (1/1) ... [2021-11-06 16:21:16,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:21:16" (1/1) ... [2021-11-06 16:21:17,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:21:16" (1/1) ... [2021-11-06 16:21:17,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:21:16" (1/1) ... [2021-11-06 16:21:17,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:21:16" (1/1) ... [2021-11-06 16:21:17,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 16:21:17,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 16:21:17,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 16:21:17,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 16:21:17,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:21:16" (1/1) ... [2021-11-06 16:21:17,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:21:17,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 16:21:17,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 16:21:17,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 16:21:17,596 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_cmd [2021-11-06 16:21:17,596 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_cmd [2021-11-06 16:21:17,596 INFO L130 BoogieDeclarations]: Found specification of procedure handle_bmc_rsp [2021-11-06 16:21:17,597 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_bmc_rsp [2021-11-06 16:21:17,597 INFO L130 BoogieDeclarations]: Found specification of procedure handle_oem_get_msg_cmd [2021-11-06 16:21:17,597 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_oem_get_msg_cmd [2021-11-06 16:21:17,597 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-06 16:21:17,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 16:21:17,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 16:21:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure free_smi_msg_list [2021-11-06 16:21:17,598 INFO L138 BoogieDeclarations]: Found implementation of procedure free_smi_msg_list [2021-11-06 16:21:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 16:21:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2021-11-06 16:21:17,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2021-11-06 16:21:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 16:21:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_err_response [2021-11-06 16:21:17,599 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_err_response [2021-11-06 16:21:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-06 16:21:17,599 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-06 16:21:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 16:21:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 16:21:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 16:21:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure handle_one_recv_msg [2021-11-06 16:21:17,599 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_one_recv_msg [2021-11-06 16:21:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 16:21:17,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 16:21:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure handle_new_recv_msgs [2021-11-06 16:21:17,600 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_new_recv_msgs [2021-11-06 16:21:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure intf_free [2021-11-06 16:21:17,600 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_free [2021-11-06 16:21:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 16:21:17,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 16:21:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-06 16:21:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-06 16:21:17,601 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-06 16:21:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 16:21:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_msg_received [2021-11-06 16:21:17,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_msg_received [2021-11-06 16:21:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 16:21:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure handle_read_event_rsp [2021-11-06 16:21:17,602 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_read_event_rsp [2021-11-06 16:21:17,602 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_cmd [2021-11-06 16:21:17,602 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_cmd [2021-11-06 16:21:17,602 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_smi_msg [2021-11-06 16:21:17,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_smi_msg [2021-11-06 16:21:17,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 16:21:17,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 16:21:17,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 16:21:17,603 INFO L130 BoogieDeclarations]: Found specification of procedure clean_up_interface_data [2021-11-06 16:21:17,603 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_up_interface_data [2021-11-06 16:21:17,603 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_rsp [2021-11-06 16:21:17,604 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_rsp [2021-11-06 16:21:17,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 16:21:17,604 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_rsp [2021-11-06 16:21:17,604 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_rsp [2021-11-06 16:21:17,604 INFO L130 BoogieDeclarations]: Found specification of procedure free_recv_msg_list [2021-11-06 16:21:17,604 INFO L138 BoogieDeclarations]: Found implementation of procedure free_recv_msg_list [2021-11-06 16:21:17,604 INFO L130 BoogieDeclarations]: Found specification of procedure intf_err_seq [2021-11-06 16:21:17,605 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_err_seq [2021-11-06 16:21:17,605 INFO L130 BoogieDeclarations]: Found specification of procedure smi_recv_tasklet [2021-11-06 16:21:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_recv_tasklet [2021-11-06 16:21:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_response [2021-11-06 16:21:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_response [2021-11-06 16:21:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 16:21:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2021-11-06 16:21:17,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2021-11-06 16:21:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-06 16:21:46,213 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 16:21:46,213 INFO L299 CfgBuilder]: Removed 3392 assume(true) statements. [2021-11-06 16:21:46,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:21:46 BoogieIcfgContainer [2021-11-06 16:21:46,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 16:21:46,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 16:21:46,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 16:21:46,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 16:21:46,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 04:21:14" (1/3) ... [2021-11-06 16:21:46,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a35956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:21:46, skipping insertion in model container [2021-11-06 16:21:46,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:21:16" (2/3) ... [2021-11-06 16:21:46,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a35956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:21:46, skipping insertion in model container [2021-11-06 16:21:46,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:21:46" (3/3) ... [2021-11-06 16:21:46,224 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2021-11-06 16:21:46,227 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 16:21:46,227 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-06 16:21:46,279 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 16:21:46,285 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 [2021-11-06 16:21:46,285 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-06 16:21:46,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 4129 states, 4014 states have (on average 1.5343796711509716) internal successors, (6159), 4045 states have internal predecessors, (6159), 80 states have call successors, (80), 24 states have call predecessors, (80), 24 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-06 16:21:46,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-06 16:21:46,364 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:21:46,365 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:21:46,365 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)] === [2021-11-06 16:21:46,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:21:46,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1503774384, now seen corresponding path program 1 times [2021-11-06 16:21:46,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:21:46,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133263406] [2021-11-06 16:21:46,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:21:46,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:21:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:21:46,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:21:46,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:21:46,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133263406] [2021-11-06 16:21:46,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133263406] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:21:46,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:21:46,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:21:46,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317977077] [2021-11-06 16:21:46,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 16:21:46,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:21:46,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 16:21:46,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 16:21:46,997 INFO L87 Difference]: Start difference. First operand has 4129 states, 4014 states have (on average 1.5343796711509716) internal successors, (6159), 4045 states have internal predecessors, (6159), 80 states have call successors, (80), 24 states have call predecessors, (80), 24 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) Second operand has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:21:47,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:21:47,129 INFO L93 Difference]: Finished difference Result 8254 states and 12713 transitions. [2021-11-06 16:21:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 16:21:47,130 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2021-11-06 16:21:47,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:21:47,158 INFO L225 Difference]: With dead ends: 8254 [2021-11-06 16:21:47,158 INFO L226 Difference]: Without dead ends: 4107 [2021-11-06 16:21:47,172 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 16:21:47,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4107 states. [2021-11-06 16:21:47,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4107 to 4107. [2021-11-06 16:21:47,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4107 states, 3993 states have (on average 1.5126471324818431) internal successors, (6040), 4023 states have internal predecessors, (6040), 80 states have call successors, (80), 24 states have call predecessors, (80), 24 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-06 16:21:47,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4107 states to 4107 states and 6200 transitions. [2021-11-06 16:21:47,330 INFO L78 Accepts]: Start accepts. Automaton has 4107 states and 6200 transitions. Word has length 210 [2021-11-06 16:21:47,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:21:47,333 INFO L470 AbstractCegarLoop]: Abstraction has 4107 states and 6200 transitions. [2021-11-06 16:21:47,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:21:47,333 INFO L276 IsEmpty]: Start isEmpty. Operand 4107 states and 6200 transitions. [2021-11-06 16:21:47,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-06 16:21:47,337 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:21:47,337 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:21:47,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 16:21:47,338 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)] === [2021-11-06 16:21:47,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:21:47,344 INFO L85 PathProgramCache]: Analyzing trace with hash -394926700, now seen corresponding path program 1 times [2021-11-06 16:21:47,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:21:47,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953402006] [2021-11-06 16:21:47,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:21:47,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:21:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:21:47,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:21:47,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:21:47,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953402006] [2021-11-06 16:21:47,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953402006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:21:47,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:21:47,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:21:47,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334735106] [2021-11-06 16:21:47,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:21:47,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:21:47,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:21:47,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:21:47,747 INFO L87 Difference]: Start difference. First operand 4107 states and 6200 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:21:50,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:21:50,133 INFO L93 Difference]: Finished difference Result 11822 states and 18051 transitions. [2021-11-06 16:21:50,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:21:50,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2021-11-06 16:21:50,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:21:50,162 INFO L225 Difference]: With dead ends: 11822 [2021-11-06 16:21:50,162 INFO L226 Difference]: Without dead ends: 7912 [2021-11-06 16:21:50,173 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 [2021-11-06 16:21:50,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7912 states. [2021-11-06 16:21:50,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7912 to 7908. [2021-11-06 16:21:50,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7908 states, 7690 states have (on average 1.5258777633289986) internal successors, (11734), 7741 states have internal predecessors, (11734), 160 states have call successors, (160), 48 states have call predecessors, (160), 48 states have return successors, (160), 156 states have call predecessors, (160), 160 states have call successors, (160) [2021-11-06 16:21:50,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7908 states to 7908 states and 12054 transitions. [2021-11-06 16:21:50,323 INFO L78 Accepts]: Start accepts. Automaton has 7908 states and 12054 transitions. Word has length 210 [2021-11-06 16:21:50,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:21:50,324 INFO L470 AbstractCegarLoop]: Abstraction has 7908 states and 12054 transitions. [2021-11-06 16:21:50,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:21:50,324 INFO L276 IsEmpty]: Start isEmpty. Operand 7908 states and 12054 transitions. [2021-11-06 16:21:50,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-06 16:21:50,326 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:21:50,326 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:21:50,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 16:21:50,326 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)] === [2021-11-06 16:21:50,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:21:50,327 INFO L85 PathProgramCache]: Analyzing trace with hash 477537030, now seen corresponding path program 1 times [2021-11-06 16:21:50,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:21:50,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480354688] [2021-11-06 16:21:50,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:21:50,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:21:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:21:50,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:21:50,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:21:50,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480354688] [2021-11-06 16:21:50,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480354688] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:21:50,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:21:50,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:21:50,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571328567] [2021-11-06 16:21:50,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:21:50,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:21:50,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:21:50,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:21:50,862 INFO L87 Difference]: Start difference. First operand 7908 states and 12054 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:21:51,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:21:51,186 INFO L93 Difference]: Finished difference Result 23281 states and 35671 transitions. [2021-11-06 16:21:51,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:21:51,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2021-11-06 16:21:51,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:21:51,257 INFO L225 Difference]: With dead ends: 23281 [2021-11-06 16:21:51,258 INFO L226 Difference]: Without dead ends: 15570 [2021-11-06 16:21:51,280 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 [2021-11-06 16:21:51,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15570 states. [2021-11-06 16:21:51,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15570 to 15542. [2021-11-06 16:21:51,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15542 states, 15116 states have (on average 1.5320190526594337) internal successors, (23158), 15209 states have internal predecessors, (23158), 320 states have call successors, (320), 96 states have call predecessors, (320), 96 states have return successors, (320), 312 states have call predecessors, (320), 320 states have call successors, (320) [2021-11-06 16:21:51,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15542 states to 15542 states and 23798 transitions. [2021-11-06 16:21:51,695 INFO L78 Accepts]: Start accepts. Automaton has 15542 states and 23798 transitions. Word has length 214 [2021-11-06 16:21:51,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:21:51,699 INFO L470 AbstractCegarLoop]: Abstraction has 15542 states and 23798 transitions. [2021-11-06 16:21:51,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:21:51,700 INFO L276 IsEmpty]: Start isEmpty. Operand 15542 states and 23798 transitions. [2021-11-06 16:21:51,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-06 16:21:51,701 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:21:51,702 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:21:51,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 16:21:51,702 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)] === [2021-11-06 16:21:51,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:21:51,703 INFO L85 PathProgramCache]: Analyzing trace with hash 918707819, now seen corresponding path program 1 times [2021-11-06 16:21:51,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:21:51,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341582680] [2021-11-06 16:21:51,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:21:51,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:21:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:21:52,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:21:52,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:21:52,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341582680] [2021-11-06 16:21:52,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341582680] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:21:52,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:21:52,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 16:21:52,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211620353] [2021-11-06 16:21:52,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 16:21:52,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:21:52,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 16:21:52,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 16:21:52,036 INFO L87 Difference]: Start difference. First operand 15542 states and 23798 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:21:52,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:21:52,548 INFO L93 Difference]: Finished difference Result 27085 states and 41532 transitions. [2021-11-06 16:21:52,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 16:21:52,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2021-11-06 16:21:52,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:21:52,575 INFO L225 Difference]: With dead ends: 27085 [2021-11-06 16:21:52,576 INFO L226 Difference]: Without dead ends: 11740 [2021-11-06 16:21:52,606 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 [2021-11-06 16:21:52,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11740 states. [2021-11-06 16:21:52,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11740 to 11740. [2021-11-06 16:21:52,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11740 states, 11418 states have (on average 1.5289893151164828) internal successors, (17458), 11490 states have internal predecessors, (17458), 240 states have call successors, (240), 72 states have call predecessors, (240), 72 states have return successors, (240), 234 states have call predecessors, (240), 240 states have call successors, (240) [2021-11-06 16:21:52,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11740 states to 11740 states and 17938 transitions. [2021-11-06 16:21:52,845 INFO L78 Accepts]: Start accepts. Automaton has 11740 states and 17938 transitions. Word has length 216 [2021-11-06 16:21:52,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:21:52,846 INFO L470 AbstractCegarLoop]: Abstraction has 11740 states and 17938 transitions. [2021-11-06 16:21:52,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:21:52,846 INFO L276 IsEmpty]: Start isEmpty. Operand 11740 states and 17938 transitions. [2021-11-06 16:21:52,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-11-06 16:21:52,851 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:21:52,851 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:21:52,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 16:21:52,851 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-06 16:21:52,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:21:52,851 INFO L85 PathProgramCache]: Analyzing trace with hash -901076384, now seen corresponding path program 1 times [2021-11-06 16:21:52,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:21:52,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863162344] [2021-11-06 16:21:52,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:21:52,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:21:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:21:53,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-06 16:21:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:21:53,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-06 16:21:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:21:53,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:21:53,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:21:53,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863162344] [2021-11-06 16:21:53,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863162344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:21:53,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:21:53,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 16:21:53,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888411667] [2021-11-06 16:21:53,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 16:21:53,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:21:53,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 16:21:53,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-06 16:21:53,290 INFO L87 Difference]: Start difference. First operand 11740 states and 17938 transitions. Second operand has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 5 states have internal predecessors, (244), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-06 16:22:29,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:22:29,291 INFO L93 Difference]: Finished difference Result 46667 states and 72246 transitions. [2021-11-06 16:22:29,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 16:22:29,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 5 states have internal predecessors, (244), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 251 [2021-11-06 16:22:29,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:22:29,512 INFO L225 Difference]: With dead ends: 46667 [2021-11-06 16:22:29,512 INFO L226 Difference]: Without dead ends: 35124 [2021-11-06 16:22:29,536 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-06 16:22:29,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35124 states. [2021-11-06 16:22:30,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35124 to 34236. [2021-11-06 16:22:30,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34236 states, 33236 states have (on average 1.5302082079672643) internal successors, (50858), 33452 states have internal predecessors, (50858), 732 states have call successors, (732), 216 states have call predecessors, (732), 258 states have return successors, (1122), 741 states have call predecessors, (1122), 732 states have call successors, (1122) [2021-11-06 16:22:30,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34236 states to 34236 states and 52712 transitions. [2021-11-06 16:22:30,326 INFO L78 Accepts]: Start accepts. Automaton has 34236 states and 52712 transitions. Word has length 251 [2021-11-06 16:22:30,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:22:30,327 INFO L470 AbstractCegarLoop]: Abstraction has 34236 states and 52712 transitions. [2021-11-06 16:22:30,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 5 states have internal predecessors, (244), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-06 16:22:30,327 INFO L276 IsEmpty]: Start isEmpty. Operand 34236 states and 52712 transitions. [2021-11-06 16:22:30,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2021-11-06 16:22:30,331 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:22:30,332 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:22:30,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 16:22:30,332 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-06 16:22:30,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:22:30,333 INFO L85 PathProgramCache]: Analyzing trace with hash 151531793, now seen corresponding path program 1 times [2021-11-06 16:22:30,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:22:30,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95084368] [2021-11-06 16:22:30,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:22:30,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:22:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:22:30,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-11-06 16:22:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:22:30,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-06 16:22:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:22:30,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:22:30,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:22:30,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95084368] [2021-11-06 16:22:30,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95084368] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:22:30,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:22:30,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 16:22:30,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403114970] [2021-11-06 16:22:30,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 16:22:30,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:22:30,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 16:22:30,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-06 16:22:30,703 INFO L87 Difference]: Start difference. First operand 34236 states and 52712 transitions. Second operand has 6 states, 6 states have (on average 40.833333333333336) internal successors, (245), 5 states have internal predecessors, (245), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-06 16:23:03,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:23:03,262 INFO L93 Difference]: Finished difference Result 136583 states and 213066 transitions. [2021-11-06 16:23:03,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 16:23:03,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.833333333333336) internal successors, (245), 5 states have internal predecessors, (245), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 252 [2021-11-06 16:23:03,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:23:03,591 INFO L225 Difference]: With dead ends: 136583 [2021-11-06 16:23:03,591 INFO L226 Difference]: Without dead ends: 102544 [2021-11-06 16:23:03,697 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-06 16:23:03,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102544 states. [2021-11-06 16:23:06,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102544 to 100662. [2021-11-06 16:23:06,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100662 states, 97583 states have (on average 1.5292622690427635) internal successors, (149230), 98246 states have internal predecessors, (149230), 2211 states have call successors, (2211), 648 states have call predecessors, (2211), 858 states have return successors, (4728), 2292 states have call predecessors, (4728), 2211 states have call successors, (4728) [2021-11-06 16:23:06,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100662 states to 100662 states and 156169 transitions. [2021-11-06 16:23:06,894 INFO L78 Accepts]: Start accepts. Automaton has 100662 states and 156169 transitions. Word has length 252 [2021-11-06 16:23:06,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:23:06,894 INFO L470 AbstractCegarLoop]: Abstraction has 100662 states and 156169 transitions. [2021-11-06 16:23:06,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.833333333333336) internal successors, (245), 5 states have internal predecessors, (245), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-06 16:23:06,895 INFO L276 IsEmpty]: Start isEmpty. Operand 100662 states and 156169 transitions. [2021-11-06 16:23:06,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-06 16:23:06,899 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:23:06,899 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:23:06,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 16:23:06,899 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-06 16:23:06,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:23:06,900 INFO L85 PathProgramCache]: Analyzing trace with hash 151698866, now seen corresponding path program 1 times [2021-11-06 16:23:06,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:23:06,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388111102] [2021-11-06 16:23:06,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:23:06,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:23:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:23:07,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-06 16:23:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:23:07,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-06 16:23:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:23:07,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:23:07,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:23:07,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388111102] [2021-11-06 16:23:07,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388111102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:23:07,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:23:07,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 16:23:07,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113831607] [2021-11-06 16:23:07,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 16:23:07,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:23:07,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 16:23:07,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-06 16:23:07,222 INFO L87 Difference]: Start difference. First operand 100662 states and 156169 transitions. Second operand has 6 states, 6 states have (on average 41.0) internal successors, (246), 5 states have internal predecessors, (246), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-06 16:23:57,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:23:57,262 INFO L93 Difference]: Finished difference Result 401399 states and 633473 transitions. [2021-11-06 16:23:57,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 16:23:57,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 41.0) internal successors, (246), 5 states have internal predecessors, (246), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 253 [2021-11-06 16:23:57,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:23:58,583 INFO L225 Difference]: With dead ends: 401399 [2021-11-06 16:23:58,583 INFO L226 Difference]: Without dead ends: 300934 [2021-11-06 16:23:58,802 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-06 16:23:59,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300934 states. [2021-11-06 16:24:05,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300934 to 296612. [2021-11-06 16:24:06,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296612 states, 287224 states have (on average 1.5279712001782582) internal successors, (438870), 289252 states have internal predecessors, (438870), 6636 states have call successors, (6636), 1944 states have call predecessors, (6636), 2742 states have return successors, (19728), 6987 states have call predecessors, (19728), 6636 states have call successors, (19728) [2021-11-06 16:24:07,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296612 states to 296612 states and 465234 transitions. [2021-11-06 16:24:07,918 INFO L78 Accepts]: Start accepts. Automaton has 296612 states and 465234 transitions. Word has length 253 [2021-11-06 16:24:07,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:24:07,918 INFO L470 AbstractCegarLoop]: Abstraction has 296612 states and 465234 transitions. [2021-11-06 16:24:07,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.0) internal successors, (246), 5 states have internal predecessors, (246), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-06 16:24:07,919 INFO L276 IsEmpty]: Start isEmpty. Operand 296612 states and 465234 transitions. [2021-11-06 16:24:07,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-06 16:24:07,924 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:24:07,924 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:24:07,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 16:24:07,925 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION === [clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-06 16:24:07,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:24:07,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1885930083, now seen corresponding path program 1 times [2021-11-06 16:24:07,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:24:07,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537636479] [2021-11-06 16:24:07,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:24:07,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:24:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:24:08,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-06 16:24:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:24:08,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-06 16:24:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:24:08,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 16:24:08,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:24:08,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537636479] [2021-11-06 16:24:08,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537636479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:24:08,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:24:08,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 16:24:08,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788281780] [2021-11-06 16:24:08,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 16:24:08,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:24:08,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 16:24:08,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-06 16:24:08,256 INFO L87 Difference]: Start difference. First operand 296612 states and 465234 transitions. Second operand has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 5 states have internal predecessors, (247), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-06 16:24:58,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:24:58,739 INFO L93 Difference]: Finished difference Result 1181079 states and 1899773 transitions. [2021-11-06 16:24:58,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 16:24:58,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 5 states have internal predecessors, (247), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 254 [2021-11-06 16:24:58,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted.