./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fc0d7108b14cf7ade4256acdb7ea5c36ccda70628af318ac7331527caf0f1ef8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:05:08,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:05:08,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:05:08,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:05:08,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:05:08,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:05:08,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:05:08,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:05:08,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:05:08,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:05:08,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:05:08,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:05:08,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:05:08,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:05:08,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:05:08,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:05:08,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:05:08,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:05:08,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:05:08,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:05:08,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:05:08,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:05:08,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:05:08,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:05:08,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:05:08,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:05:08,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:05:08,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:05:08,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:05:08,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:05:08,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:05:08,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:05:08,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:05:08,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:05:08,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:05:08,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:05:08,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:05:08,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:05:08,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:05:08,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:05:08,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:05:08,943 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:05:08,968 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:05:08,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:05:08,969 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:05:08,969 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:05:08,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:05:08,970 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:05:08,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:05:08,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:05:08,971 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:05:08,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:05:08,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:05:08,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:05:08,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:05:08,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:05:08,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:05:08,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:05:08,974 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:05:08,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:05:08,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:05:08,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:05:08,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:05:08,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:05:08,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:05:08,975 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:05:08,975 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:05:08,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:05:08,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:05:08,976 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:05:08,976 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:05:08,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:05:08,976 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:05:08,976 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc0d7108b14cf7ade4256acdb7ea5c36ccda70628af318ac7331527caf0f1ef8 [2021-12-21 16:05:09,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:05:09,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:05:09,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:05:09,253 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:05:09,253 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:05:09,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i [2021-12-21 16:05:09,313 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c172607a/1c703791d6bf4edbae6807dd95df496a/FLAG9bae7be22 [2021-12-21 16:05:10,001 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:05:10,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i [2021-12-21 16:05:10,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c172607a/1c703791d6bf4edbae6807dd95df496a/FLAG9bae7be22 [2021-12-21 16:05:10,334 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c172607a/1c703791d6bf4edbae6807dd95df496a [2021-12-21 16:05:10,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:05:10,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:05:10,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:05:10,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:05:10,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:05:10,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:05:10" (1/1) ... [2021-12-21 16:05:10,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756c8ec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:10, skipping insertion in model container [2021-12-21 16:05:10,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:05:10" (1/1) ... [2021-12-21 16:05:10,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:05:10,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:05:11,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i[329752,329765] [2021-12-21 16:05:12,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:05:12,144 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:05:12,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i[329752,329765] [2021-12-21 16:05:12,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:05:12,599 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:05:12,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:12 WrapperNode [2021-12-21 16:05:12,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:05:12,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:05:12,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:05:12,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:05:12,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:12" (1/1) ... [2021-12-21 16:05:12,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:12" (1/1) ... [2021-12-21 16:05:12,911 INFO L137 Inliner]: procedures = 380, calls = 3772, calls flagged for inlining = 111, calls inlined = 106, statements flattened = 6716 [2021-12-21 16:05:12,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:05:12,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:05:12,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:05:12,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:05:12,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:12" (1/1) ... [2021-12-21 16:05:12,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:12" (1/1) ... [2021-12-21 16:05:12,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:12" (1/1) ... [2021-12-21 16:05:12,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:12" (1/1) ... [2021-12-21 16:05:13,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:12" (1/1) ... [2021-12-21 16:05:13,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:12" (1/1) ... [2021-12-21 16:05:13,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:12" (1/1) ... [2021-12-21 16:05:13,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:05:13,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:05:13,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:05:13,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:05:13,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:12" (1/1) ... [2021-12-21 16:05:13,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:05:13,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:05:13,457 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) [2021-12-21 16:05:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_msg_structures_uv [2021-12-21 16:05:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_msg_structures_uv [2021-12-21 16:05:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-21 16:05:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-21 16:05:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_heartbeat_init_uv [2021-12-21 16:05:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_heartbeat_init_uv [2021-12-21 16:05:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-12-21 16:05:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_allow_hb_uv [2021-12-21 16:05:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_allow_hb_uv [2021-12-21 16:05:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_partitions_uv [2021-12-21 16:05:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_partitions_uv [2021-12-21 16:05:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_kthread_waitmsgs [2021-12-21 16:05:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_kthread_waitmsgs [2021-12-21 16:05:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_opencomplete_uv [2021-12-21 16:05:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_opencomplete_uv [2021-12-21 16:05:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:05:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:05:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2021-12-21 16:05:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2021-12-21 16:05:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_msg_structures_uv [2021-12-21 16:05:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_msg_structures_uv [2021-12-21 16:05:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_rsvd_page [2021-12-21 16:05:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_rsvd_page [2021-12-21 16:05:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_partition_disengaged [2021-12-21 16:05:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_partition_disengaged [2021-12-21 16:05:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_wakeup_channel_mgr [2021-12-21 16:05:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_wakeup_channel_mgr [2021-12-21 16:05:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-21 16:05:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-21 16:05:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-21 16:05:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-21 16:05:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_return [2021-12-21 16:05:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_return [2021-12-21 16:05:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:05:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:05:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_kmalloc_cacheline_aligned [2021-12-21 16:05:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_kmalloc_cacheline_aligned [2021-12-21 16:05:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_partitions_uv [2021-12-21 16:05:13,511 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 [2021-12-21 16:05:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_partitions_uv [2021-12-21 16:05:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_offline_heartbeat_uv [2021-12-21 16:05:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_offline_heartbeat_uv [2021-12-21 16:05:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_release_gru_mq_irq_uv [2021-12-21 16:05:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_release_gru_mq_irq_uv [2021-12-21 16:05:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~TO~int [2021-12-21 16:05:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~TO~int [2021-12-21 16:05:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-21 16:05:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_notify_sender_uv [2021-12-21 16:05:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_notify_sender_uv [2021-12-21 16:05:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_die_deactivate [2021-12-21 16:05:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_die_deactivate [2021-12-21 16:05:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_connect [2021-12-21 16:05:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_connect [2021-12-21 16:05:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-21 16:05:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-21 16:05:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2021-12-21 16:05:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2021-12-21 16:05:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_die_notifier [2021-12-21 16:05:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_die_notifier [2021-12-21 16:05:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_check_remote_hb [2021-12-21 16:05:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_check_remote_hb [2021-12-21 16:05:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:05:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:05:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:05:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:05:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_init_fifo_uv [2021-12-21 16:05:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_init_fifo_uv [2021-12-21 16:05:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cached_activate_gru_mq_desc_mutex_of_xpc_partition_uv [2021-12-21 16:05:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cached_activate_gru_mq_desc_mutex_of_xpc_partition_uv [2021-12-21 16:05:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_msgqueue_ref [2021-12-21 16:05:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_msgqueue_ref [2021-12-21 16:05:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_received_payload_uv [2021-12-21 16:05:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_received_payload_uv [2021-12-21 16:05:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-21 16:05:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-21 16:05:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_kthread_start [2021-12-21 16:05:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_kthread_start [2021-12-21 16:05:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_part_ref [2021-12-21 16:05:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_part_ref [2021-12-21 16:05:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_create_kthreads [2021-12-21 16:05:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_create_kthreads [2021-12-21 16:05:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-12-21 16:05:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-12-21 16:05:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_local_activate_IRQ_uv [2021-12-21 16:05:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_local_activate_IRQ_uv [2021-12-21 16:05:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-21 16:05:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-21 16:05:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_exit_uv [2021-12-21 16:05:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_exit_uv [2021-12-21 16:05:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 16:05:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 16:05:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_put_fifo_entry_uv [2021-12-21 16:05:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_put_fifo_entry_uv [2021-12-21 16:05:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure uv_blade_to_pnode [2021-12-21 16:05:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure uv_blade_to_pnode [2021-12-21 16:05:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_activate_IRQ_rcvd_uv [2021-12-21 16:05:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_activate_IRQ_rcvd_uv [2021-12-21 16:05:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_activate_IRQ_uv [2021-12-21 16:05:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_activate_IRQ_uv [2021-12-21 16:05:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_payload_uv [2021-12-21 16:05:13,535 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_payload_uv [2021-12-21 16:05:13,535 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_free_msg_slot_uv [2021-12-21 16:05:13,535 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_free_msg_slot_uv [2021-12-21 16:05:13,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cached_activate_gru_mq_desc_mutex_of_xpc_partition_uv [2021-12-21 16:05:13,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cached_activate_gru_mq_desc_mutex_of_xpc_partition_uv [2021-12-21 16:05:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:05:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_indicate_partition_engaged_uv [2021-12-21 16:05:13,536 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_indicate_partition_engaged_uv [2021-12-21 16:05:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_openclose_chctl_flags [2021-12-21 16:05:13,536 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_openclose_chctl_flags [2021-12-21 16:05:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:05:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_msg_chctl_flags_uv [2021-12-21 16:05:13,536 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_msg_chctl_flags_uv [2021-12-21 16:05:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-21 16:05:13,537 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-21 16:05:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-21 16:05:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_msgqueue_deref [2021-12-21 16:05:13,537 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_msgqueue_deref [2021-12-21 16:05:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_closereply_uv [2021-12-21 16:05:13,537 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_closereply_uv [2021-12-21 16:05:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-21 16:05:13,537 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-21 16:05:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:05:13,538 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:05:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_connect_channel [2021-12-21 16:05:13,538 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_connect_channel [2021-12-21 16:05:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_cache_remote_gru_mq_desc_uv [2021-12-21 16:05:13,538 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_cache_remote_gru_mq_desc_uv [2021-12-21 16:05:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_ch_structures_uv [2021-12-21 16:05:13,538 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_ch_structures_uv [2021-12-21 16:05:13,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~int [2021-12-21 16:05:13,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~int [2021-12-21 16:05:13,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:05:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_request_partition_activation_uv [2021-12-21 16:05:13,540 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_request_partition_activation_uv [2021-12-21 16:05:13,543 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_activating [2021-12-21 16:05:13,543 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_activating [2021-12-21 16:05:13,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:05:13,544 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disconnect_callout [2021-12-21 16:05:13,544 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disconnect_callout [2021-12-21 16:05:13,544 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_deactivate_partition [2021-12-21 16:05:13,544 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_deactivate_partition [2021-12-21 16:05:13,544 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_indicate_partition_disengaged_uv [2021-12-21 16:05:13,545 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_indicate_partition_disengaged_uv [2021-12-21 16:05:13,545 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disconnect_channel [2021-12-21 16:05:13,545 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disconnect_channel [2021-12-21 16:05:13,545 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2021-12-21 16:05:13,545 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2021-12-21 16:05:13,545 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2021-12-21 16:05:13,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2021-12-21 16:05:13,546 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-21 16:05:13,546 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-21 16:05:13,546 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-21 16:05:13,546 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-21 16:05:13,546 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-21 16:05:13,546 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-21 16:05:13,546 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_channel_mgr [2021-12-21 16:05:13,547 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_channel_mgr [2021-12-21 16:05:13,547 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_save_remote_msgqueue_pa_uv [2021-12-21 16:05:13,547 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_save_remote_msgqueue_pa_uv [2021-12-21 16:05:13,547 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_openrequest_uv [2021-12-21 16:05:13,547 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_openrequest_uv [2021-12-21 16:05:13,547 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_heartbeat_exit_uv [2021-12-21 16:05:13,548 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_heartbeat_exit_uv [2021-12-21 16:05:13,548 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_ch_structures [2021-12-21 16:05:13,548 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_ch_structures [2021-12-21 16:05:13,548 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-21 16:05:13,548 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-21 16:05:13,548 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-12-21 16:05:13,548 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-12-21 16:05:13,549 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_any_partition_engaged_uv [2021-12-21 16:05:13,549 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_any_partition_engaged_uv [2021-12-21 16:05:13,549 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-21 16:05:13,549 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-21 16:05:13,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-12-21 16:05:13,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-12-21 16:05:13,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:05:13,550 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_rsvd_page_pa [2021-12-21 16:05:13,550 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_rsvd_page_pa [2021-12-21 16:05:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_activate_partition [2021-12-21 16:05:13,563 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_activate_partition [2021-12-21 16:05:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_activate_IRQ_part_uv [2021-12-21 16:05:13,564 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_activate_IRQ_part_uv [2021-12-21 16:05:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure uv_cpu_to_blade_id [2021-12-21 16:05:13,564 INFO L138 BoogieDeclarations]: Found implementation of procedure uv_cpu_to_blade_id [2021-12-21 16:05:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_initiate_discovery [2021-12-21 16:05:13,564 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_initiate_discovery [2021-12-21 16:05:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-21 16:05:13,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-21 16:05:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_request_partition_reactivation_uv [2021-12-21 16:05:13,565 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_request_partition_reactivation_uv [2021-12-21 16:05:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:05:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_activate_kthreads [2021-12-21 16:05:13,565 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_activate_kthreads [2021-12-21 16:05:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:05:13,566 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_partition_engaged_uv [2021-12-21 16:05:13,566 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_partition_engaged_uv [2021-12-21 16:05:13,566 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-21 16:05:13,566 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-21 16:05:13,568 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_gru_msg [2021-12-21 16:05:13,568 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_gru_msg [2021-12-21 16:05:13,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:05:13,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:05:13,568 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_create_gru_mq_uv [2021-12-21 16:05:13,568 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_create_gru_mq_uv [2021-12-21 16:05:13,568 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2021-12-21 16:05:13,569 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2021-12-21 16:05:13,569 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_part_deref [2021-12-21 16:05:13,569 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_part_deref [2021-12-21 16:05:13,569 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_closerequest_uv [2021-12-21 16:05:13,569 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_closerequest_uv [2021-12-21 16:05:13,569 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disallow_all_hbs_uv [2021-12-21 16:05:13,570 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disallow_all_hbs_uv [2021-12-21 16:05:13,570 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_timeout_partition_disengage [2021-12-21 16:05:13,570 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_timeout_partition_disengage [2021-12-21 16:05:13,570 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_of_node [2021-12-21 16:05:13,570 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_of_node [2021-12-21 16:05:13,570 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_init_mq_node [2021-12-21 16:05:13,570 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_init_mq_node [2021-12-21 16:05:13,571 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_destroy_gru_mq_uv [2021-12-21 16:05:13,571 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_destroy_gru_mq_uv [2021-12-21 16:05:13,571 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_discovery [2021-12-21 16:05:13,571 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_discovery [2021-12-21 16:05:13,571 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_partition_rsvd_page_pa_uv [2021-12-21 16:05:13,571 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_partition_rsvd_page_pa_uv [2021-12-21 16:05:13,571 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:05:13,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:05:13,572 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_activate_IRQ_ch_uv [2021-12-21 16:05:13,572 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_activate_IRQ_ch_uv [2021-12-21 16:05:13,572 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_increment_heartbeat_uv [2021-12-21 16:05:13,572 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_increment_heartbeat_uv [2021-12-21 16:05:13,572 INFO L130 BoogieDeclarations]: Found specification of procedure put_online_cpus [2021-12-21 16:05:13,573 INFO L138 BoogieDeclarations]: Found implementation of procedure put_online_cpus [2021-12-21 16:05:13,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:05:13,573 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_sent_chctl_flags [2021-12-21 16:05:13,573 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_sent_chctl_flags [2021-12-21 16:05:13,573 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_remote_heartbeat_uv [2021-12-21 16:05:13,573 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_remote_heartbeat_uv [2021-12-21 16:05:13,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:05:13,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:05:13,574 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_partitions [2021-12-21 16:05:13,574 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_partitions [2021-12-21 16:05:13,574 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_disconnect [2021-12-21 16:05:13,574 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_disconnect [2021-12-21 16:05:13,574 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_do_exit [2021-12-21 16:05:13,574 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_do_exit [2021-12-21 16:05:13,575 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_online_heartbeat_uv [2021-12-21 16:05:13,575 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_online_heartbeat_uv [2021-12-21 16:05:13,577 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_fifo_entry_uv [2021-12-21 16:05:13,577 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_fifo_entry_uv [2021-12-21 16:05:13,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_xpc_registration [2021-12-21 16:05:13,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_xpc_registration [2021-12-21 16:05:13,578 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disallow_hb_uv [2021-12-21 16:05:13,578 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disallow_hb_uv [2021-12-21 16:05:13,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:05:13,579 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_openreply_uv [2021-12-21 16:05:13,579 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_openreply_uv [2021-12-21 16:05:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_hb_checker [2021-12-21 16:05:13,584 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_hb_checker [2021-12-21 16:05:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2021-12-21 16:05:13,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2021-12-21 16:05:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-21 16:05:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-21 16:05:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_ch_structures_uv [2021-12-21 16:05:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_ch_structures_uv [2021-12-21 16:05:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_rsvd_page_uv [2021-12-21 16:05:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_rsvd_page_uv [2021-12-21 16:05:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:05:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-12-21 16:05:13,586 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-12-21 16:05:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-21 16:05:13,586 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-21 16:05:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_request_partition_deactivation_uv [2021-12-21 16:05:13,586 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_request_partition_deactivation_uv [2021-12-21 16:05:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_chctl_all_flags_uv [2021-12-21 16:05:13,586 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_chctl_all_flags_uv [2021-12-21 16:05:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_gru_mq_watchlist_free_uv [2021-12-21 16:05:13,587 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_gru_mq_watchlist_free_uv [2021-12-21 16:05:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_partition_going_down [2021-12-21 16:05:13,603 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_partition_going_down [2021-12-21 16:05:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-12-21 16:05:13,604 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-12-21 16:05:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:05:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-21 16:05:13,605 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:05:13,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:05:13,605 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-12-21 16:05:13,605 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-12-21 16:05:13,605 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 16:05:13,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 16:05:13,605 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-21 16:05:13,606 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-21 16:05:13,606 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-21 16:05:13,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-21 16:05:13,606 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sysctl_table [2021-12-21 16:05:13,606 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sysctl_table [2021-12-21 16:05:13,606 INFO L130 BoogieDeclarations]: Found specification of procedure uv_gpa [2021-12-21 16:05:13,606 INFO L138 BoogieDeclarations]: Found implementation of procedure uv_gpa [2021-12-21 16:05:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-21 16:05:13,607 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-21 16:05:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~X~$Pointer$~X~$Pointer$~TO~VOID [2021-12-21 16:05:13,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~X~$Pointer$~X~$Pointer$~TO~VOID [2021-12-21 16:05:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_deliverable_payload_uv [2021-12-21 16:05:13,607 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_deliverable_payload_uv [2021-12-21 16:05:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_notify_senders_of_disconnect_uv [2021-12-21 16:05:13,607 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_notify_senders_of_disconnect_uv [2021-12-21 16:05:13,608 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-12-21 16:05:13,608 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-12-21 16:05:13,608 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_make_first_contact_uv [2021-12-21 16:05:13,608 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_make_first_contact_uv [2021-12-21 16:05:13,608 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_n_of_deliverable_payloads_uv [2021-12-21 16:05:13,608 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_n_of_deliverable_payloads_uv [2021-12-21 16:05:13,608 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-21 16:05:13,609 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-21 16:05:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_remote_rp [2021-12-21 16:05:13,609 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_remote_rp [2021-12-21 16:05:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-21 16:05:13,609 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-21 16:05:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_hb_beater [2021-12-21 16:05:13,609 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_hb_beater [2021-12-21 16:05:13,610 INFO L130 BoogieDeclarations]: Found specification of procedure is_uv_system [2021-12-21 16:05:13,610 INFO L138 BoogieDeclarations]: Found implementation of procedure is_uv_system [2021-12-21 16:05:13,610 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-21 16:05:13,610 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-21 16:05:13,610 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-21 16:05:13,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-21 16:05:13,610 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-21 16:05:13,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-21 16:05:13,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:05:13,611 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-21 16:05:13,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-21 16:05:13,611 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-21 16:05:13,611 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-21 16:05:13,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:05:13,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:05:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_assume_partition_disengaged_uv [2021-12-21 16:05:13,612 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_assume_partition_disengaged_uv [2021-12-21 16:05:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-21 16:05:13,612 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-21 16:05:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_cancel_partition_deactivation_request_uv [2021-12-21 16:05:13,612 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_cancel_partition_deactivation_request_uv [2021-12-21 16:05:14,420 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:05:14,426 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:05:21,767 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:05:21,794 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:05:21,795 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 16:05:21,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:05:21 BoogieIcfgContainer [2021-12-21 16:05:21,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:05:21,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:05:21,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:05:21,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:05:21,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:05:10" (1/3) ... [2021-12-21 16:05:21,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526bdc19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:05:21, skipping insertion in model container [2021-12-21 16:05:21,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:12" (2/3) ... [2021-12-21 16:05:21,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526bdc19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:05:21, skipping insertion in model container [2021-12-21 16:05:21,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:05:21" (3/3) ... [2021-12-21 16:05:21,808 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i [2021-12-21 16:05:21,815 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:05:21,816 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:05:21,874 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:05:21,881 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 [2021-12-21 16:05:21,881 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:05:21,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 2800 states, 1892 states have (on average 1.3689217758985202) internal successors, (2590), 2002 states have internal predecessors, (2590), 746 states have call successors, (746), 160 states have call predecessors, (746), 160 states have return successors, (746), 711 states have call predecessors, (746), 746 states have call successors, (746) [2021-12-21 16:05:21,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-21 16:05:21,951 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:21,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:21,952 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:21,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:21,956 INFO L85 PathProgramCache]: Analyzing trace with hash 150157696, now seen corresponding path program 1 times [2021-12-21 16:05:21,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:21,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950087818] [2021-12-21 16:05:21,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:21,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:22,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:22,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:22,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950087818] [2021-12-21 16:05:22,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950087818] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:22,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:22,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:22,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738657939] [2021-12-21 16:05:22,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:22,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:22,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:22,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:22,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:22,652 INFO L87 Difference]: Start difference. First operand has 2800 states, 1892 states have (on average 1.3689217758985202) internal successors, (2590), 2002 states have internal predecessors, (2590), 746 states have call successors, (746), 160 states have call predecessors, (746), 160 states have return successors, (746), 711 states have call predecessors, (746), 746 states have call successors, (746) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:23,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:23,325 INFO L93 Difference]: Finished difference Result 8035 states and 12012 transitions. [2021-12-21 16:05:23,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:23,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-21 16:05:23,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:23,390 INFO L225 Difference]: With dead ends: 8035 [2021-12-21 16:05:23,390 INFO L226 Difference]: Without dead ends: 5214 [2021-12-21 16:05:23,422 INFO L932 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 [2021-12-21 16:05:23,425 INFO L933 BasicCegarLoop]: 5964 mSDtfsCounter, 3469 mSDsluCounter, 3818 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3469 SdHoareTripleChecker+Valid, 9782 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:23,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3469 Valid, 9782 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 16:05:23,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5214 states. [2021-12-21 16:05:23,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5214 to 5196. [2021-12-21 16:05:23,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5196 states, 3492 states have (on average 1.3490836197021765) internal successors, (4711), 3699 states have internal predecessors, (4711), 1388 states have call successors, (1388), 316 states have call predecessors, (1388), 315 states have return successors, (1379), 1308 states have call predecessors, (1379), 1379 states have call successors, (1379) [2021-12-21 16:05:23,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 5196 states and 7478 transitions. [2021-12-21 16:05:23,778 INFO L78 Accepts]: Start accepts. Automaton has 5196 states and 7478 transitions. Word has length 20 [2021-12-21 16:05:23,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:23,778 INFO L470 AbstractCegarLoop]: Abstraction has 5196 states and 7478 transitions. [2021-12-21 16:05:23,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:23,779 INFO L276 IsEmpty]: Start isEmpty. Operand 5196 states and 7478 transitions. [2021-12-21 16:05:23,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-21 16:05:23,782 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:23,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:23,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:05:23,782 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:23,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:23,783 INFO L85 PathProgramCache]: Analyzing trace with hash 888374678, now seen corresponding path program 1 times [2021-12-21 16:05:23,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:23,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97588219] [2021-12-21 16:05:23,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:23,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:23,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 16:05:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:23,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:23,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:23,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97588219] [2021-12-21 16:05:23,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97588219] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:23,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:23,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:23,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528933814] [2021-12-21 16:05:23,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:23,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:23,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:23,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:23,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:23,989 INFO L87 Difference]: Start difference. First operand 5196 states and 7478 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 16:05:24,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:24,172 INFO L93 Difference]: Finished difference Result 5223 states and 7512 transitions. [2021-12-21 16:05:24,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:24,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-12-21 16:05:24,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:24,204 INFO L225 Difference]: With dead ends: 5223 [2021-12-21 16:05:24,205 INFO L226 Difference]: Without dead ends: 5210 [2021-12-21 16:05:24,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:24,210 INFO L933 BasicCegarLoop]: 4064 mSDtfsCounter, 4044 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4044 SdHoareTripleChecker+Valid, 4080 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:24,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4044 Valid, 4080 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:24,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5210 states. [2021-12-21 16:05:24,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5210 to 5197. [2021-12-21 16:05:24,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 3493 states have (on average 1.3489836816490124) internal successors, (4712), 3700 states have internal predecessors, (4712), 1388 states have call successors, (1388), 316 states have call predecessors, (1388), 315 states have return successors, (1379), 1308 states have call predecessors, (1379), 1379 states have call successors, (1379) [2021-12-21 16:05:24,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 7479 transitions. [2021-12-21 16:05:24,505 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 7479 transitions. Word has length 24 [2021-12-21 16:05:24,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:24,506 INFO L470 AbstractCegarLoop]: Abstraction has 5197 states and 7479 transitions. [2021-12-21 16:05:24,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 16:05:24,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 7479 transitions. [2021-12-21 16:05:24,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-21 16:05:24,514 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:24,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:24,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:05:24,514 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:24,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:24,516 INFO L85 PathProgramCache]: Analyzing trace with hash 945632980, now seen corresponding path program 1 times [2021-12-21 16:05:24,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:24,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649149956] [2021-12-21 16:05:24,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:24,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:24,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 16:05:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:24,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:24,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:24,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649149956] [2021-12-21 16:05:24,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649149956] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:24,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:24,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:24,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115177480] [2021-12-21 16:05:24,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:24,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:24,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:24,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:24,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:24,748 INFO L87 Difference]: Start difference. First operand 5197 states and 7479 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 16:05:24,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:24,947 INFO L93 Difference]: Finished difference Result 5337 states and 7621 transitions. [2021-12-21 16:05:24,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:24,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-12-21 16:05:24,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:24,977 INFO L225 Difference]: With dead ends: 5337 [2021-12-21 16:05:24,978 INFO L226 Difference]: Without dead ends: 5333 [2021-12-21 16:05:24,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:24,984 INFO L933 BasicCegarLoop]: 4083 mSDtfsCounter, 3963 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3963 SdHoareTripleChecker+Valid, 4214 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:24,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3963 Valid, 4214 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:24,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5333 states. [2021-12-21 16:05:25,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5333 to 5331. [2021-12-21 16:05:25,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 3593 states have (on average 1.3428889507375452) internal successors, (4825), 3798 states have internal predecessors, (4825), 1398 states have call successors, (1398), 340 states have call predecessors, (1398), 339 states have return successors, (1391), 1320 states have call predecessors, (1391), 1391 states have call successors, (1391) [2021-12-21 16:05:25,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 7614 transitions. [2021-12-21 16:05:25,220 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 7614 transitions. Word has length 24 [2021-12-21 16:05:25,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:25,221 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 7614 transitions. [2021-12-21 16:05:25,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 16:05:25,222 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 7614 transitions. [2021-12-21 16:05:25,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-21 16:05:25,223 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:25,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:25,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:05:25,224 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:25,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:25,226 INFO L85 PathProgramCache]: Analyzing trace with hash -751552013, now seen corresponding path program 1 times [2021-12-21 16:05:25,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:25,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264287436] [2021-12-21 16:05:25,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:25,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:25,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 16:05:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:25,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:25,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:25,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264287436] [2021-12-21 16:05:25,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264287436] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:25,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:25,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:25,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557724053] [2021-12-21 16:05:25,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:25,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:25,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:25,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:25,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:25,478 INFO L87 Difference]: Start difference. First operand 5331 states and 7614 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 16:05:25,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:25,722 INFO L93 Difference]: Finished difference Result 5333 states and 7615 transitions. [2021-12-21 16:05:25,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:25,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-12-21 16:05:25,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:25,748 INFO L225 Difference]: With dead ends: 5333 [2021-12-21 16:05:25,748 INFO L226 Difference]: Without dead ends: 5330 [2021-12-21 16:05:25,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:25,751 INFO L933 BasicCegarLoop]: 4042 mSDtfsCounter, 4024 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4024 SdHoareTripleChecker+Valid, 4042 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:25,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4024 Valid, 4042 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:25,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5330 states. [2021-12-21 16:05:25,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5330 to 5330. [2021-12-21 16:05:25,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 3593 states have (on average 1.3426106317840245) internal successors, (4824), 3797 states have internal predecessors, (4824), 1397 states have call successors, (1397), 340 states have call predecessors, (1397), 339 states have return successors, (1391), 1320 states have call predecessors, (1391), 1391 states have call successors, (1391) [2021-12-21 16:05:25,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 7612 transitions. [2021-12-21 16:05:25,949 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 7612 transitions. Word has length 25 [2021-12-21 16:05:25,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:25,949 INFO L470 AbstractCegarLoop]: Abstraction has 5330 states and 7612 transitions. [2021-12-21 16:05:25,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 16:05:25,950 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 7612 transitions. [2021-12-21 16:05:25,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-21 16:05:25,951 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:25,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:25,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 16:05:25,951 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:25,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:25,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1824674377, now seen corresponding path program 1 times [2021-12-21 16:05:25,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:25,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519199716] [2021-12-21 16:05:25,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:25,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 16:05:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:26,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:26,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519199716] [2021-12-21 16:05:26,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519199716] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:26,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:26,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:26,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114620472] [2021-12-21 16:05:26,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:26,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:26,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:26,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:26,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:26,139 INFO L87 Difference]: Start difference. First operand 5330 states and 7612 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 16:05:26,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:26,326 INFO L93 Difference]: Finished difference Result 5332 states and 7613 transitions. [2021-12-21 16:05:26,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:26,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-12-21 16:05:26,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:26,356 INFO L225 Difference]: With dead ends: 5332 [2021-12-21 16:05:26,357 INFO L226 Difference]: Without dead ends: 5329 [2021-12-21 16:05:26,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:26,362 INFO L933 BasicCegarLoop]: 4040 mSDtfsCounter, 4021 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4021 SdHoareTripleChecker+Valid, 4040 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:26,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4021 Valid, 4040 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:26,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5329 states. [2021-12-21 16:05:26,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5329 to 5329. [2021-12-21 16:05:26,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5329 states, 3593 states have (on average 1.3423323128305038) internal successors, (4823), 3796 states have internal predecessors, (4823), 1396 states have call successors, (1396), 340 states have call predecessors, (1396), 339 states have return successors, (1391), 1320 states have call predecessors, (1391), 1391 states have call successors, (1391) [2021-12-21 16:05:26,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5329 states to 5329 states and 7610 transitions. [2021-12-21 16:05:26,574 INFO L78 Accepts]: Start accepts. Automaton has 5329 states and 7610 transitions. Word has length 26 [2021-12-21 16:05:26,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:26,574 INFO L470 AbstractCegarLoop]: Abstraction has 5329 states and 7610 transitions. [2021-12-21 16:05:26,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 16:05:26,575 INFO L276 IsEmpty]: Start isEmpty. Operand 5329 states and 7610 transitions. [2021-12-21 16:05:26,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-21 16:05:26,576 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:26,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:26,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 16:05:26,576 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:26,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:26,577 INFO L85 PathProgramCache]: Analyzing trace with hash -731724426, now seen corresponding path program 1 times [2021-12-21 16:05:26,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:26,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505224064] [2021-12-21 16:05:26,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:26,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 16:05:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:26,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:26,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505224064] [2021-12-21 16:05:26,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505224064] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:26,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:26,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:26,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342506764] [2021-12-21 16:05:26,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:26,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:26,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:26,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:26,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:26,810 INFO L87 Difference]: Start difference. First operand 5329 states and 7610 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 16:05:26,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:26,999 INFO L93 Difference]: Finished difference Result 5331 states and 7611 transitions. [2021-12-21 16:05:26,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:26,999 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-12-21 16:05:27,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:27,038 INFO L225 Difference]: With dead ends: 5331 [2021-12-21 16:05:27,038 INFO L226 Difference]: Without dead ends: 5328 [2021-12-21 16:05:27,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:27,045 INFO L933 BasicCegarLoop]: 4038 mSDtfsCounter, 4018 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4018 SdHoareTripleChecker+Valid, 4038 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:27,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4018 Valid, 4038 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:27,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5328 states. [2021-12-21 16:05:27,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5328 to 5328. [2021-12-21 16:05:27,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 3593 states have (on average 1.342053993876983) internal successors, (4822), 3795 states have internal predecessors, (4822), 1395 states have call successors, (1395), 340 states have call predecessors, (1395), 339 states have return successors, (1391), 1320 states have call predecessors, (1391), 1391 states have call successors, (1391) [2021-12-21 16:05:27,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 7608 transitions. [2021-12-21 16:05:27,245 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 7608 transitions. Word has length 27 [2021-12-21 16:05:27,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:27,246 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 7608 transitions. [2021-12-21 16:05:27,246 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 16:05:27,247 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 7608 transitions. [2021-12-21 16:05:27,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-21 16:05:27,249 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:27,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:27,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 16:05:27,250 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:27,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:27,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1210009446, now seen corresponding path program 1 times [2021-12-21 16:05:27,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:27,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680009936] [2021-12-21 16:05:27,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:27,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:27,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 16:05:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:27,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:27,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:27,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680009936] [2021-12-21 16:05:27,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680009936] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:27,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:27,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:27,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655829036] [2021-12-21 16:05:27,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:27,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:27,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:27,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:27,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:27,453 INFO L87 Difference]: Start difference. First operand 5328 states and 7608 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 16:05:27,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:27,959 INFO L93 Difference]: Finished difference Result 15936 states and 23108 transitions. [2021-12-21 16:05:27,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:27,960 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-12-21 16:05:27,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:28,015 INFO L225 Difference]: With dead ends: 15936 [2021-12-21 16:05:28,015 INFO L226 Difference]: Without dead ends: 10604 [2021-12-21 16:05:28,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:28,056 INFO L933 BasicCegarLoop]: 4956 mSDtfsCounter, 4053 mSDsluCounter, 4043 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4053 SdHoareTripleChecker+Valid, 8999 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:28,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4053 Valid, 8999 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:28,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10604 states. [2021-12-21 16:05:28,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10604 to 10590. [2021-12-21 16:05:28,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10590 states, 7147 states have (on average 1.3428011753183153) internal successors, (9597), 7552 states have internal predecessors, (9597), 2766 states have call successors, (2766), 678 states have call predecessors, (2766), 676 states have return successors, (2928), 2615 states have call predecessors, (2928), 2758 states have call successors, (2928) [2021-12-21 16:05:28,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10590 states to 10590 states and 15291 transitions. [2021-12-21 16:05:28,608 INFO L78 Accepts]: Start accepts. Automaton has 10590 states and 15291 transitions. Word has length 28 [2021-12-21 16:05:28,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:28,608 INFO L470 AbstractCegarLoop]: Abstraction has 10590 states and 15291 transitions. [2021-12-21 16:05:28,608 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 16:05:28,609 INFO L276 IsEmpty]: Start isEmpty. Operand 10590 states and 15291 transitions. [2021-12-21 16:05:28,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-21 16:05:28,618 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:28,618 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:28,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 16:05:28,618 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:28,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:28,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1380410177, now seen corresponding path program 1 times [2021-12-21 16:05:28,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:28,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521498494] [2021-12-21 16:05:28,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:28,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 16:05:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 16:05:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 16:05:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-21 16:05:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-21 16:05:28,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:28,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521498494] [2021-12-21 16:05:28,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521498494] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:28,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:28,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:05:28,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387880223] [2021-12-21 16:05:28,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:28,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:05:28,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:28,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:05:28,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:05:28,970 INFO L87 Difference]: Start difference. First operand 10590 states and 15291 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 16:05:31,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:38,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:42,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:42,838 INFO L93 Difference]: Finished difference Result 15564 states and 24318 transitions. [2021-12-21 16:05:42,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 16:05:42,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 62 [2021-12-21 16:05:42,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:43,009 INFO L225 Difference]: With dead ends: 15564 [2021-12-21 16:05:43,009 INFO L226 Difference]: Without dead ends: 15561 [2021-12-21 16:05:43,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:05:43,021 INFO L933 BasicCegarLoop]: 3759 mSDtfsCounter, 2740 mSDsluCounter, 5326 mSDsCounter, 0 mSdLazyCounter, 5350 mSolverCounterSat, 2680 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3140 SdHoareTripleChecker+Valid, 9085 SdHoareTripleChecker+Invalid, 8032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2680 IncrementalHoareTripleChecker+Valid, 5350 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:43,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3140 Valid, 9085 Invalid, 8032 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2680 Valid, 5350 Invalid, 2 Unknown, 0 Unchecked, 13.2s Time] [2021-12-21 16:05:43,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15561 states. [2021-12-21 16:05:43,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15561 to 10913. [2021-12-21 16:05:43,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10913 states, 7375 states have (on average 1.3414237288135593) internal successors, (9893), 7799 states have internal predecessors, (9893), 2821 states have call successors, (2821), 678 states have call predecessors, (2821), 716 states have return successors, (3162), 2691 states have call predecessors, (3162), 2814 states have call successors, (3162) [2021-12-21 16:05:43,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10913 states to 10913 states and 15876 transitions. [2021-12-21 16:05:43,644 INFO L78 Accepts]: Start accepts. Automaton has 10913 states and 15876 transitions. Word has length 62 [2021-12-21 16:05:43,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:43,646 INFO L470 AbstractCegarLoop]: Abstraction has 10913 states and 15876 transitions. [2021-12-21 16:05:43,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 16:05:43,647 INFO L276 IsEmpty]: Start isEmpty. Operand 10913 states and 15876 transitions. [2021-12-21 16:05:43,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-12-21 16:05:43,681 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:43,683 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:43,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 16:05:43,684 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:43,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:43,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1394246988, now seen corresponding path program 1 times [2021-12-21 16:05:43,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:43,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627795391] [2021-12-21 16:05:43,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:43,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:43,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:43,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 16:05:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:43,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-21 16:05:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:43,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:43,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:43,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-21 16:05:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:43,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-21 16:05:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:43,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-21 16:05:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:43,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-21 16:05:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-21 16:05:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:05:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:05:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 16:05:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-21 16:05:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 16:05:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-21 16:05:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:05:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-21 16:05:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-21 16:05:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-21 16:05:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-21 16:05:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 16:05:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 16:05:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-21 16:05:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,330 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-21 16:05:44,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:44,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627795391] [2021-12-21 16:05:44,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627795391] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 16:05:44,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112642959] [2021-12-21 16:05:44,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:44,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:05:44,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:05:44,333 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 16:05:44,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 16:05:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:45,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 5589 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 16:05:45,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:05:46,125 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-12-21 16:05:46,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:05:46,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112642959] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:46,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 16:05:46,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2021-12-21 16:05:46,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071055328] [2021-12-21 16:05:46,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:46,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:46,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:46,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:46,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:05:46,128 INFO L87 Difference]: Start difference. First operand 10913 states and 15876 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-21 16:05:46,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:46,551 INFO L93 Difference]: Finished difference Result 22652 states and 33166 transitions. [2021-12-21 16:05:46,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:46,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 239 [2021-12-21 16:05:46,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:46,616 INFO L225 Difference]: With dead ends: 22652 [2021-12-21 16:05:46,617 INFO L226 Difference]: Without dead ends: 11742 [2021-12-21 16:05:46,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:05:46,673 INFO L933 BasicCegarLoop]: 4248 mSDtfsCounter, 431 mSDsluCounter, 4024 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 8272 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:46,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [517 Valid, 8272 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:05:46,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11742 states. [2021-12-21 16:05:47,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11742 to 10917. [2021-12-21 16:05:47,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10917 states, 7379 states have (on average 1.3412386502236076) internal successors, (9897), 7803 states have internal predecessors, (9897), 2821 states have call successors, (2821), 678 states have call predecessors, (2821), 716 states have return successors, (3162), 2691 states have call predecessors, (3162), 2814 states have call successors, (3162) [2021-12-21 16:05:47,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10917 states to 10917 states and 15880 transitions. [2021-12-21 16:05:47,279 INFO L78 Accepts]: Start accepts. Automaton has 10917 states and 15880 transitions. Word has length 239 [2021-12-21 16:05:47,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:47,279 INFO L470 AbstractCegarLoop]: Abstraction has 10917 states and 15880 transitions. [2021-12-21 16:05:47,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-21 16:05:47,280 INFO L276 IsEmpty]: Start isEmpty. Operand 10917 states and 15880 transitions. [2021-12-21 16:05:47,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-12-21 16:05:47,310 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:47,310 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:47,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 16:05:47,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:05:47,528 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:47,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:47,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1110554405, now seen corresponding path program 1 times [2021-12-21 16:05:47,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:47,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541264598] [2021-12-21 16:05:47,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:47,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:47,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 16:05:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:47,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 16:05:47,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:47,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:47,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:47,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-21 16:05:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:47,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-21 16:05:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:47,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-21 16:05:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:47,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-21 16:05:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:47,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 16:05:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:47,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 16:05:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:47,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:05:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:47,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:47,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:47,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 16:05:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:47,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 16:05:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-21 16:05:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-21 16:05:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:05:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 16:05:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-21 16:05:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-21 16:05:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-21 16:05:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-21 16:05:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 16:05:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-21 16:05:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:48,162 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-21 16:05:48,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:48,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541264598] [2021-12-21 16:05:48,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541264598] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 16:05:48,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032642300] [2021-12-21 16:05:48,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:48,164 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:05:48,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:05:48,165 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 16:05:48,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 16:05:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:49,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 5964 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 16:05:49,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:05:49,897 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-12-21 16:05:49,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:05:49,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032642300] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:49,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 16:05:49,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-12-21 16:05:49,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880279874] [2021-12-21 16:05:49,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:49,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:49,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:49,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:49,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:05:49,899 INFO L87 Difference]: Start difference. First operand 10917 states and 15880 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-21 16:05:50,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:50,419 INFO L93 Difference]: Finished difference Result 23200 states and 34066 transitions. [2021-12-21 16:05:50,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:50,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 248 [2021-12-21 16:05:50,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:50,472 INFO L225 Difference]: With dead ends: 23200 [2021-12-21 16:05:50,473 INFO L226 Difference]: Without dead ends: 12286 [2021-12-21 16:05:50,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:05:50,507 INFO L933 BasicCegarLoop]: 4643 mSDtfsCounter, 581 mSDsluCounter, 4109 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 8752 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:50,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [700 Valid, 8752 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:05:50,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12286 states. [2021-12-21 16:05:50,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12286 to 10925. [2021-12-21 16:05:50,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10925 states, 7387 states have (on average 1.3414105861648842) internal successors, (9909), 7811 states have internal predecessors, (9909), 2821 states have call successors, (2821), 678 states have call predecessors, (2821), 716 states have return successors, (3162), 2691 states have call predecessors, (3162), 2814 states have call successors, (3162) [2021-12-21 16:05:50,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10925 states to 10925 states and 15892 transitions. [2021-12-21 16:05:50,973 INFO L78 Accepts]: Start accepts. Automaton has 10925 states and 15892 transitions. Word has length 248 [2021-12-21 16:05:50,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:50,973 INFO L470 AbstractCegarLoop]: Abstraction has 10925 states and 15892 transitions. [2021-12-21 16:05:50,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-21 16:05:50,974 INFO L276 IsEmpty]: Start isEmpty. Operand 10925 states and 15892 transitions. [2021-12-21 16:05:51,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-12-21 16:05:51,004 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:51,004 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:51,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-21 16:05:51,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-21 16:05:51,220 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:51,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:51,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2001629027, now seen corresponding path program 1 times [2021-12-21 16:05:51,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:51,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477359552] [2021-12-21 16:05:51,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:51,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 16:05:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 16:05:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-21 16:05:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-21 16:05:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-21 16:05:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-21 16:05:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 16:05:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 16:05:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:05:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 16:05:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 16:05:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-21 16:05:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-21 16:05:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:05:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 16:05:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-21 16:05:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-21 16:05:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-21 16:05:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-21 16:05:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 16:05:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-21 16:05:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:51,927 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-12-21 16:05:51,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:51,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477359552] [2021-12-21 16:05:51,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477359552] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:51,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:51,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-21 16:05:51,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433900111] [2021-12-21 16:05:51,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:51,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-21 16:05:51,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:51,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-21 16:05:51,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-21 16:05:51,930 INFO L87 Difference]: Start difference. First operand 10925 states and 15892 transitions. Second operand has 10 states, 10 states have (on average 14.2) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2021-12-21 16:05:54,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:56,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []