./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0de3702172247e9daf688602f826d117afa5d623a980b5c7e35d9c75cbe83a45 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 04:12:01,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:12:01,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:12:01,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:12:01,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:12:01,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:12:01,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:12:01,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:12:01,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:12:01,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:12:01,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:12:01,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:12:01,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:12:01,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:12:01,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:12:01,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:12:01,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:12:01,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:12:01,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:12:01,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:12:01,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:12:01,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:12:01,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:12:01,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:12:01,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:12:01,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:12:01,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:12:01,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:12:01,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:12:01,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:12:01,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:12:01,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:12:01,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:12:01,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:12:01,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:12:01,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:12:01,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:12:01,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:12:01,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:12:01,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:12:01,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:12:01,084 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:12:01,106 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:12:01,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:12:01,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:12:01,109 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:12:01,110 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:12:01,110 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:12:01,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:12:01,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:12:01,111 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:12:01,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:12:01,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:12:01,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:12:01,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:12:01,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:12:01,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:12:01,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:12:01,112 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:12:01,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:12:01,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:12:01,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:12:01,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:12:01,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:12:01,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:12:01,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:12:01,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:12:01,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:12:01,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:12:01,114 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:12:01,114 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:12:01,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:12:01,115 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:12:01,115 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0de3702172247e9daf688602f826d117afa5d623a980b5c7e35d9c75cbe83a45 [2021-12-16 04:12:01,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:12:01,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:12:01,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:12:01,342 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:12:01,351 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:12:01,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i [2021-12-16 04:12:01,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19726b978/53f1871f96cc4df3bf9165146dc11e1b/FLAGf05f8d92e [2021-12-16 04:12:01,998 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:12:01,999 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i [2021-12-16 04:12:02,033 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19726b978/53f1871f96cc4df3bf9165146dc11e1b/FLAGf05f8d92e [2021-12-16 04:12:02,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19726b978/53f1871f96cc4df3bf9165146dc11e1b [2021-12-16 04:12:02,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:12:02,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:12:02,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:12:02,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:12:02,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:12:02,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:12:02" (1/1) ... [2021-12-16 04:12:02,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4266b4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:12:02, skipping insertion in model container [2021-12-16 04:12:02,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:12:02" (1/1) ... [2021-12-16 04:12:02,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:12:02,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:12:03,709 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i[230653,230666] [2021-12-16 04:12:03,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:12:03,769 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:12:03,993 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i[230653,230666] [2021-12-16 04:12:04,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:12:04,065 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:12:04,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:12:04 WrapperNode [2021-12-16 04:12:04,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:12:04,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:12:04,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:12:04,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:12:04,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:12:04" (1/1) ... [2021-12-16 04:12:04,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:12:04" (1/1) ... [2021-12-16 04:12:04,291 INFO L137 Inliner]: procedures = 258, calls = 1568, calls flagged for inlining = 102, calls inlined = 102, statements flattened = 4328 [2021-12-16 04:12:04,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:12:04,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:12:04,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:12:04,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:12:04,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:12:04" (1/1) ... [2021-12-16 04:12:04,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:12:04" (1/1) ... [2021-12-16 04:12:04,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:12:04" (1/1) ... [2021-12-16 04:12:04,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:12:04" (1/1) ... [2021-12-16 04:12:04,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:12:04" (1/1) ... [2021-12-16 04:12:04,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:12:04" (1/1) ... [2021-12-16 04:12:04,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:12:04" (1/1) ... [2021-12-16 04:12:04,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:12:04,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:12:04,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:12:04,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:12:04,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:12:04" (1/1) ... [2021-12-16 04:12:04,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:12:04,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:12:04,552 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) [2021-12-16 04:12:04,558 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 [2021-12-16 04:12:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2021-12-16 04:12:04,580 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2021-12-16 04:12:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-12-16 04:12:04,580 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-12-16 04:12:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-16 04:12:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure queue_if_no_path [2021-12-16 04:12:04,581 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_if_no_path [2021-12-16 04:12:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:12:04,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:12:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-16 04:12:04,581 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-16 04:12:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_message [2021-12-16 04:12:04,581 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_message [2021-12-16 04:12:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_end_io [2021-12-16 04:12:04,582 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_end_io [2021-12-16 04:12:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_ctr [2021-12-16 04:12:04,582 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_ctr [2021-12-16 04:12:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-16 04:12:04,582 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-16 04:12:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:12:04,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:12:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-16 04:12:04,583 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-16 04:12:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure bypass_pg_num [2021-12-16 04:12:04,583 INFO L138 BoogieDeclarations]: Found implementation of procedure bypass_pg_num [2021-12-16 04:12:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-16 04:12:04,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-16 04:12:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-16 04:12:04,583 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-16 04:12:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_clone_and_map [2021-12-16 04:12:04,583 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_clone_and_map [2021-12-16 04:12:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure parse_path_selector [2021-12-16 04:12:04,584 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_path_selector [2021-12-16 04:12:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_iterate_devices [2021-12-16 04:12:04,584 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_iterate_devices [2021-12-16 04:12:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 04:12:04,584 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 04:12:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:12:04,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:12:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-16 04:12:04,585 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-16 04:12:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 04:12:04,585 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 04:12:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_dtr [2021-12-16 04:12:04,585 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_dtr [2021-12-16 04:12:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:12:04,585 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:12:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_detach [2021-12-16 04:12:04,586 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_detach [2021-12-16 04:12:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg_group [2021-12-16 04:12:04,586 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg_group [2021-12-16 04:12:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_path_selector [2021-12-16 04:12:04,586 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_path_selector [2021-12-16 04:12:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 04:12:04,587 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 04:12:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_handler_exist [2021-12-16 04:12:04,587 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_handler_exist [2021-12-16 04:12:04,588 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-16 04:12:04,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-16 04:12:04,588 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_ioctl [2021-12-16 04:12:04,588 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_ioctl [2021-12-16 04:12:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure clear_mapinfo [2021-12-16 04:12:04,589 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_mapinfo [2021-12-16 04:12:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2021-12-16 04:12:04,589 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2021-12-16 04:12:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure free_priority_group [2021-12-16 04:12:04,589 INFO L138 BoogieDeclarations]: Found implementation of procedure free_priority_group [2021-12-16 04:12:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:12:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-16 04:12:04,589 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-16 04:12:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-12-16 04:12:04,590 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-12-16 04:12:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:12:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure __must_push_back [2021-12-16 04:12:04,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __must_push_back [2021-12-16 04:12:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-16 04:12:04,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-16 04:12:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-16 04:12:04,591 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-16 04:12:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-16 04:12:04,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-16 04:12:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 04:12:04,591 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 04:12:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure get_path_selector [2021-12-16 04:12:04,591 INFO L138 BoogieDeclarations]: Found implementation of procedure get_path_selector [2021-12-16 04:12:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-16 04:12:04,592 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-16 04:12:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:12:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_release_clone [2021-12-16 04:12:04,592 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_release_clone [2021-12-16 04:12:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:12:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure bypass_pg [2021-12-16 04:12:04,593 INFO L138 BoogieDeclarations]: Found implementation of procedure bypass_pg [2021-12-16 04:12:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_event [2021-12-16 04:12:04,593 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_event [2021-12-16 04:12:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-16 04:12:04,594 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-16 04:12:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-16 04:12:04,594 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-16 04:12:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-16 04:12:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-16 04:12:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure free_pgpath [2021-12-16 04:12:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pgpath [2021-12-16 04:12:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-16 04:12:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-16 04:12:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure __choose_path_in_pg [2021-12-16 04:12:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __choose_path_in_pg [2021-12-16 04:12:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-16 04:12:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-16 04:12:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure activate_path [2021-12-16 04:12:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_path [2021-12-16 04:12:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~status_type_t~0~X~$Pointer$~X~int~TO~int [2021-12-16 04:12:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~status_type_t~0~X~$Pointer$~X~int~TO~int [2021-12-16 04:12:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure flush_multipath_work [2021-12-16 04:12:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_multipath_work [2021-12-16 04:12:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-16 04:12:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-16 04:12:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_attach [2021-12-16 04:12:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_attach [2021-12-16 04:12:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-16 04:12:04,599 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-16 04:12:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_run_md_queue_async [2021-12-16 04:12:04,599 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_run_md_queue_async [2021-12-16 04:12:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2021-12-16 04:12:04,601 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2021-12-16 04:12:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_postsuspend [2021-12-16 04:12:04,601 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_postsuspend [2021-12-16 04:12:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure fail_path [2021-12-16 04:12:04,605 INFO L138 BoogieDeclarations]: Found implementation of procedure fail_path [2021-12-16 04:12:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:12:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_map [2021-12-16 04:12:04,606 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_map [2021-12-16 04:12:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 04:12:04,606 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 04:12:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-16 04:12:04,606 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-16 04:12:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:12:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:12:04,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:12:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-16 04:12:04,606 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-16 04:12:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-16 04:12:04,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-16 04:12:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg [2021-12-16 04:12:04,607 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg [2021-12-16 04:12:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2021-12-16 04:12:04,607 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2021-12-16 04:12:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure __choose_pgpath [2021-12-16 04:12:04,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __choose_pgpath [2021-12-16 04:12:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:12:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-16 04:12:04,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-16 04:12:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure dm_path_uevent [2021-12-16 04:12:04,608 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_path_uevent [2021-12-16 04:12:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-12-16 04:12:04,608 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-12-16 04:12:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-16 04:12:04,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-16 04:12:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:12:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-16 04:12:04,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-16 04:12:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:12:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-16 04:12:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure parse_priority_group [2021-12-16 04:12:04,609 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_priority_group [2021-12-16 04:12:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:12:04,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:12:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure __pg_init_all_paths [2021-12-16 04:12:04,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __pg_init_all_paths [2021-12-16 04:12:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-12-16 04:12:04,609 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2021-12-16 04:12:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_presuspend [2021-12-16 04:12:04,609 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_presuspend [2021-12-16 04:12:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure dm_consume_args [2021-12-16 04:12:04,610 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_consume_args [2021-12-16 04:12:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure dm_shift_arg [2021-12-16 04:12:04,610 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_shift_arg [2021-12-16 04:12:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-16 04:12:04,610 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-16 04:12:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure free_multipath [2021-12-16 04:12:04,610 INFO L138 BoogieDeclarations]: Found implementation of procedure free_multipath [2021-12-16 04:12:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure __multipath_map [2021-12-16 04:12:04,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __multipath_map [2021-12-16 04:12:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-16 04:12:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-16 04:12:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2021-12-16 04:12:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2021-12-16 04:12:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_status [2021-12-16 04:12:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_status [2021-12-16 04:12:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-16 04:12:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-16 04:12:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_busy [2021-12-16 04:12:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_busy [2021-12-16 04:12:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-16 04:12:04,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-16 04:12:04,612 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2021-12-16 04:12:04,612 INFO L130 BoogieDeclarations]: Found specification of procedure __find_path_selector_type [2021-12-16 04:12:04,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_path_selector_type [2021-12-16 04:12:04,612 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-16 04:12:04,612 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-16 04:12:04,612 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_resume [2021-12-16 04:12:04,612 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_resume [2021-12-16 04:12:04,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:12:04,612 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-16 04:12:04,613 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-16 04:12:04,613 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2021-12-16 04:12:04,613 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2021-12-16 04:12:04,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:12:04,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:12:04,613 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-16 04:12:04,613 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-16 04:12:05,301 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:12:05,306 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:12:05,416 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:12:07,726 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:12:07,738 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:12:07,738 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 04:12:07,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:12:07 BoogieIcfgContainer [2021-12-16 04:12:07,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:12:07,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:12:07,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:12:07,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:12:07,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:12:02" (1/3) ... [2021-12-16 04:12:07,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f3b729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:12:07, skipping insertion in model container [2021-12-16 04:12:07,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:12:04" (2/3) ... [2021-12-16 04:12:07,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f3b729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:12:07, skipping insertion in model container [2021-12-16 04:12:07,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:12:07" (3/3) ... [2021-12-16 04:12:07,746 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i [2021-12-16 04:12:07,749 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:12:07,749 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:12:07,782 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:12:07,787 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 [2021-12-16 04:12:07,788 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:12:07,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 1641 states, 1155 states have (on average 1.3593073593073592) internal successors, (1570), 1182 states have internal predecessors, (1570), 387 states have call successors, (387), 98 states have call predecessors, (387), 97 states have return successors, (382), 375 states have call predecessors, (382), 382 states have call successors, (382) [2021-12-16 04:12:07,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-12-16 04:12:07,842 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:12:07,842 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:12:07,843 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:12:07,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:12:07,846 INFO L85 PathProgramCache]: Analyzing trace with hash 515794747, now seen corresponding path program 1 times [2021-12-16 04:12:07,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:12:07,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383913685] [2021-12-16 04:12:07,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:12:07,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:12:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:12:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:12:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:12:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:12:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:12:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:12:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 04:12:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 04:12:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 04:12:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-16 04:12:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-16 04:12:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-16 04:12:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-16 04:12:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-16 04:12:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-16 04:12:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-16 04:12:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-16 04:12:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-16 04:12:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-16 04:12:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-16 04:12:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-16 04:12:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-16 04:12:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:08,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1248 trivial. 0 not checked. [2021-12-16 04:12:08,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:12:08,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383913685] [2021-12-16 04:12:08,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383913685] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:12:08,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:12:08,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:12:08,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290120424] [2021-12-16 04:12:08,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:12:08,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:12:08,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:12:08,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:12:08,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:12:08,934 INFO L87 Difference]: Start difference. First operand has 1641 states, 1155 states have (on average 1.3593073593073592) internal successors, (1570), 1182 states have internal predecessors, (1570), 387 states have call successors, (387), 98 states have call predecessors, (387), 97 states have return successors, (382), 375 states have call predecessors, (382), 382 states have call successors, (382) Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-16 04:12:13,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:12:13,408 INFO L93 Difference]: Finished difference Result 3664 states and 5412 transitions. [2021-12-16 04:12:13,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:12:13,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 318 [2021-12-16 04:12:13,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:12:13,431 INFO L225 Difference]: With dead ends: 3664 [2021-12-16 04:12:13,431 INFO L226 Difference]: Without dead ends: 2015 [2021-12-16 04:12:13,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:12:13,448 INFO L933 BasicCegarLoop]: 2050 mSDtfsCounter, 3268 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 2420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3384 SdHoareTripleChecker+Valid, 3569 SdHoareTripleChecker+Invalid, 3894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2420 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:12:13,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3384 Valid, 3569 Invalid, 3894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2420 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-12-16 04:12:13,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2021-12-16 04:12:13,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1628. [2021-12-16 04:12:13,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1149 states have (on average 1.3533507397737163) internal successors, (1555), 1169 states have internal predecessors, (1555), 382 states have call successors, (382), 97 states have call predecessors, (382), 96 states have return successors, (380), 373 states have call predecessors, (380), 380 states have call successors, (380) [2021-12-16 04:12:13,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2317 transitions. [2021-12-16 04:12:13,601 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2317 transitions. Word has length 318 [2021-12-16 04:12:13,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:12:13,602 INFO L470 AbstractCegarLoop]: Abstraction has 1628 states and 2317 transitions. [2021-12-16 04:12:13,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-16 04:12:13,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2317 transitions. [2021-12-16 04:12:13,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-12-16 04:12:13,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:12:13,609 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:12:13,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:12:13,609 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:12:13,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:12:13,610 INFO L85 PathProgramCache]: Analyzing trace with hash -2143438509, now seen corresponding path program 1 times [2021-12-16 04:12:13,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:12:13,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994983704] [2021-12-16 04:12:13,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:12:13,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:12:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:12:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:12:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:12:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:12:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:12:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:12:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 04:12:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:13,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 04:12:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 04:12:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-16 04:12:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-16 04:12:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-16 04:12:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-16 04:12:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-16 04:12:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-16 04:12:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-16 04:12:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-16 04:12:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-16 04:12:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-16 04:12:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-16 04:12:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-16 04:12:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-16 04:12:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:14,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1248 trivial. 0 not checked. [2021-12-16 04:12:14,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:12:14,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994983704] [2021-12-16 04:12:14,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994983704] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:12:14,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:12:14,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 04:12:14,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731808784] [2021-12-16 04:12:14,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:12:14,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 04:12:14,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:12:14,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 04:12:14,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:12:14,237 INFO L87 Difference]: Start difference. First operand 1628 states and 2317 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-16 04:12:22,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:12:22,655 INFO L93 Difference]: Finished difference Result 5549 states and 8145 transitions. [2021-12-16 04:12:22,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 04:12:22,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 318 [2021-12-16 04:12:22,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:12:22,679 INFO L225 Difference]: With dead ends: 5549 [2021-12-16 04:12:22,679 INFO L226 Difference]: Without dead ends: 3962 [2021-12-16 04:12:22,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-16 04:12:22,689 INFO L933 BasicCegarLoop]: 2345 mSDtfsCounter, 5907 mSDsluCounter, 3824 mSDsCounter, 0 mSdLazyCounter, 4537 mSolverCounterSat, 3131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6255 SdHoareTripleChecker+Valid, 6169 SdHoareTripleChecker+Invalid, 7668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3131 IncrementalHoareTripleChecker+Valid, 4537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-12-16 04:12:22,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6255 Valid, 6169 Invalid, 7668 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3131 Valid, 4537 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2021-12-16 04:12:22,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3962 states. [2021-12-16 04:12:22,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3962 to 3273. [2021-12-16 04:12:22,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3273 states, 2320 states have (on average 1.355603448275862) internal successors, (3145), 2360 states have internal predecessors, (3145), 757 states have call successors, (757), 192 states have call predecessors, (757), 195 states have return successors, (777), 744 states have call predecessors, (777), 755 states have call successors, (777) [2021-12-16 04:12:22,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3273 states to 3273 states and 4679 transitions. [2021-12-16 04:12:22,834 INFO L78 Accepts]: Start accepts. Automaton has 3273 states and 4679 transitions. Word has length 318 [2021-12-16 04:12:22,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:12:22,836 INFO L470 AbstractCegarLoop]: Abstraction has 3273 states and 4679 transitions. [2021-12-16 04:12:22,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-16 04:12:22,837 INFO L276 IsEmpty]: Start isEmpty. Operand 3273 states and 4679 transitions. [2021-12-16 04:12:22,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-12-16 04:12:22,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:12:22,849 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:12:22,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 04:12:22,850 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:12:22,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:12:22,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1222623352, now seen corresponding path program 1 times [2021-12-16 04:12:22,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:12:22,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819691317] [2021-12-16 04:12:22,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:12:22,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:12:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:12:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:12:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:12:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:12:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:12:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:12:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 04:12:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 04:12:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 04:12:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-16 04:12:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:23,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-16 04:12:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-16 04:12:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-16 04:12:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-16 04:12:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-16 04:12:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-16 04:12:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-16 04:12:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-16 04:12:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-16 04:12:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-16 04:12:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-16 04:12:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-16 04:12:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-16 04:12:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-12-16 04:12:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-12-16 04:12:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 04:12:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-12-16 04:12:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2021-12-16 04:12:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:23,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1248 trivial. 0 not checked. [2021-12-16 04:12:23,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:12:23,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819691317] [2021-12-16 04:12:23,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819691317] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:12:23,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:12:23,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 04:12:23,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089912510] [2021-12-16 04:12:23,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:12:23,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 04:12:23,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:12:23,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 04:12:23,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-16 04:12:23,405 INFO L87 Difference]: Start difference. First operand 3273 states and 4679 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-16 04:12:33,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:12:33,405 INFO L93 Difference]: Finished difference Result 7956 states and 11622 transitions. [2021-12-16 04:12:33,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 04:12:33,405 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 377 [2021-12-16 04:12:33,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:12:33,431 INFO L225 Difference]: With dead ends: 7956 [2021-12-16 04:12:33,431 INFO L226 Difference]: Without dead ends: 4735 [2021-12-16 04:12:33,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-12-16 04:12:33,449 INFO L933 BasicCegarLoop]: 2037 mSDtfsCounter, 1841 mSDsluCounter, 3864 mSDsCounter, 0 mSdLazyCounter, 5258 mSolverCounterSat, 965 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 5901 SdHoareTripleChecker+Invalid, 6223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 965 IncrementalHoareTripleChecker+Valid, 5258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-12-16 04:12:33,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2072 Valid, 5901 Invalid, 6223 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [965 Valid, 5258 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2021-12-16 04:12:33,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4735 states. [2021-12-16 04:12:33,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4735 to 3859. [2021-12-16 04:12:33,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3859 states, 2743 states have (on average 1.3550856726212177) internal successors, (3717), 2797 states have internal predecessors, (3717), 868 states have call successors, (868), 243 states have call predecessors, (868), 247 states have return successors, (890), 854 states have call predecessors, (890), 866 states have call successors, (890) [2021-12-16 04:12:33,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 5475 transitions. [2021-12-16 04:12:33,656 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 5475 transitions. Word has length 377 [2021-12-16 04:12:33,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:12:33,658 INFO L470 AbstractCegarLoop]: Abstraction has 3859 states and 5475 transitions. [2021-12-16 04:12:33,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-16 04:12:33,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 5475 transitions. [2021-12-16 04:12:33,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-12-16 04:12:33,670 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:12:33,670 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2021-12-16 04:12:33,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 04:12:33,670 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:12:33,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:12:33,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1463686418, now seen corresponding path program 1 times [2021-12-16 04:12:33,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:12:33,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19847450] [2021-12-16 04:12:33,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:12:33,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:12:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:12:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:12:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:12:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:12:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:12:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:12:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 04:12:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 04:12:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 04:12:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-16 04:12:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-16 04:12:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-16 04:12:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:33,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-16 04:12:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-16 04:12:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-16 04:12:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-16 04:12:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-16 04:12:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-16 04:12:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-16 04:12:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-16 04:12:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-16 04:12:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-16 04:12:34,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-16 04:12:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-16 04:12:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-16 04:12:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-12-16 04:12:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2021-12-16 04:12:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 04:12:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-12-16 04:12:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-12-16 04:12:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:34,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1423 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1420 trivial. 0 not checked. [2021-12-16 04:12:34,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:12:34,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19847450] [2021-12-16 04:12:34,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19847450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:12:34,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:12:34,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 04:12:34,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839167803] [2021-12-16 04:12:34,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:12:34,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 04:12:34,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:12:34,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 04:12:34,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:12:34,172 INFO L87 Difference]: Start difference. First operand 3859 states and 5475 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-16 04:12:42,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:12:42,645 INFO L93 Difference]: Finished difference Result 8539 states and 12419 transitions. [2021-12-16 04:12:42,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 04:12:42,646 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 412 [2021-12-16 04:12:42,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:12:42,669 INFO L225 Difference]: With dead ends: 8539 [2021-12-16 04:12:42,670 INFO L226 Difference]: Without dead ends: 4740 [2021-12-16 04:12:42,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-12-16 04:12:42,686 INFO L933 BasicCegarLoop]: 2004 mSDtfsCounter, 1392 mSDsluCounter, 4813 mSDsCounter, 0 mSdLazyCounter, 4792 mSolverCounterSat, 750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 6817 SdHoareTripleChecker+Invalid, 5542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 750 IncrementalHoareTripleChecker+Valid, 4792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-12-16 04:12:42,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1574 Valid, 6817 Invalid, 5542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [750 Valid, 4792 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2021-12-16 04:12:42,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4740 states. [2021-12-16 04:12:42,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4740 to 3862. [2021-12-16 04:12:42,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 2746 states have (on average 1.3539694100509831) internal successors, (3718), 2800 states have internal predecessors, (3718), 868 states have call successors, (868), 243 states have call predecessors, (868), 247 states have return successors, (890), 854 states have call predecessors, (890), 866 states have call successors, (890) [2021-12-16 04:12:42,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 5476 transitions. [2021-12-16 04:12:42,906 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 5476 transitions. Word has length 412 [2021-12-16 04:12:42,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:12:42,907 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 5476 transitions. [2021-12-16 04:12:42,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-16 04:12:42,907 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 5476 transitions. [2021-12-16 04:12:42,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2021-12-16 04:12:42,917 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:12:42,917 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2021-12-16 04:12:42,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 04:12:42,918 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:12:42,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:12:42,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1972843834, now seen corresponding path program 1 times [2021-12-16 04:12:42,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:12:42,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909631189] [2021-12-16 04:12:42,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:12:42,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:12:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:12:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:12:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:12:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:12:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:12:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:12:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 04:12:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 04:12:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 04:12:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-16 04:12:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-16 04:12:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-16 04:12:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-16 04:12:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-16 04:12:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-16 04:12:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-16 04:12:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-16 04:12:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-16 04:12:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-16 04:12:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-16 04:12:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-16 04:12:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-16 04:12:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-16 04:12:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-16 04:12:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-12-16 04:12:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-16 04:12:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-16 04:12:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 04:12:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-12-16 04:12:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2021-12-16 04:12:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:43,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1423 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2021-12-16 04:12:43,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:12:43,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909631189] [2021-12-16 04:12:43,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909631189] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 04:12:43,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498120074] [2021-12-16 04:12:43,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:12:43,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 04:12:43,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:12:43,545 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) [2021-12-16 04:12:43,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 04:12:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:44,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 3820 conjuncts, 53 conjunts are in the unsatisfiable core [2021-12-16 04:12:44,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:12:45,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1423 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1421 trivial. 0 not checked. [2021-12-16 04:12:45,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:12:45,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498120074] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:12:45,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 04:12:45,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 19 [2021-12-16 04:12:45,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824302866] [2021-12-16 04:12:45,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:12:45,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-16 04:12:45,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:12:45,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 04:12:45,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2021-12-16 04:12:45,585 INFO L87 Difference]: Start difference. First operand 3862 states and 5476 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 9 states have internal predecessors, (119), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-16 04:12:46,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:12:46,078 INFO L93 Difference]: Finished difference Result 7698 states and 10953 transitions. [2021-12-16 04:12:46,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 04:12:46,079 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 9 states have internal predecessors, (119), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) Word has length 416 [2021-12-16 04:12:46,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:12:46,095 INFO L225 Difference]: With dead ends: 7698 [2021-12-16 04:12:46,095 INFO L226 Difference]: Without dead ends: 3902 [2021-12-16 04:12:46,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 535 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-12-16 04:12:46,110 INFO L933 BasicCegarLoop]: 2312 mSDtfsCounter, 19 mSDsluCounter, 20788 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 23100 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:12:46,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 23100 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 04:12:46,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3902 states. [2021-12-16 04:12:46,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3902 to 3888. [2021-12-16 04:12:46,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3888 states, 2767 states have (on average 1.3512829779544633) internal successors, (3739), 2822 states have internal predecessors, (3739), 868 states have call successors, (868), 243 states have call predecessors, (868), 252 states have return successors, (919), 858 states have call predecessors, (919), 866 states have call successors, (919) [2021-12-16 04:12:46,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3888 states to 3888 states and 5526 transitions. [2021-12-16 04:12:46,238 INFO L78 Accepts]: Start accepts. Automaton has 3888 states and 5526 transitions. Word has length 416 [2021-12-16 04:12:46,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:12:46,239 INFO L470 AbstractCegarLoop]: Abstraction has 3888 states and 5526 transitions. [2021-12-16 04:12:46,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 9 states have internal predecessors, (119), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-16 04:12:46,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3888 states and 5526 transitions. [2021-12-16 04:12:46,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2021-12-16 04:12:46,248 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:12:46,248 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2021-12-16 04:12:46,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-16 04:12:46,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 04:12:46,472 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:12:46,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:12:46,473 INFO L85 PathProgramCache]: Analyzing trace with hash -363699925, now seen corresponding path program 1 times [2021-12-16 04:12:46,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:12:46,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027364835] [2021-12-16 04:12:46,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:12:46,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:12:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:12:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:12:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:12:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:12:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:12:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:12:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 04:12:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 04:12:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 04:12:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-16 04:12:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-16 04:12:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-16 04:12:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-16 04:12:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-16 04:12:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-16 04:12:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-16 04:12:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-16 04:12:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-16 04:12:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-16 04:12:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-16 04:12:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:46,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-16 04:12:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-16 04:12:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-16 04:12:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-16 04:12:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:12:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 04:12:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 04:12:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-12-16 04:12:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2021-12-16 04:12:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2021-12-16 04:12:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 04:12:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-12-16 04:12:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-12-16 04:12:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:47,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1531 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1526 trivial. 0 not checked. [2021-12-16 04:12:47,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:12:47,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027364835] [2021-12-16 04:12:47,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027364835] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 04:12:47,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926621863] [2021-12-16 04:12:47,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:12:47,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 04:12:47,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:12:47,122 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) [2021-12-16 04:12:47,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 04:12:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:49,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 3887 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-16 04:12:49,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:12:50,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1531 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 1195 trivial. 0 not checked. [2021-12-16 04:12:50,004 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:12:50,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926621863] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:12:50,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 04:12:50,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2021-12-16 04:12:50,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301809299] [2021-12-16 04:12:50,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:12:50,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:12:50,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:12:50,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:12:50,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-12-16 04:12:50,006 INFO L87 Difference]: Start difference. First operand 3888 states and 5526 transitions. Second operand has 6 states, 5 states have (on average 27.8) internal successors, (139), 6 states have internal predecessors, (139), 3 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-12-16 04:12:50,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:12:50,251 INFO L93 Difference]: Finished difference Result 7750 states and 11048 transitions. [2021-12-16 04:12:50,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 04:12:50,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.8) internal successors, (139), 6 states have internal predecessors, (139), 3 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 436 [2021-12-16 04:12:50,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:12:50,270 INFO L225 Difference]: With dead ends: 7750 [2021-12-16 04:12:50,270 INFO L226 Difference]: Without dead ends: 3891 [2021-12-16 04:12:50,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-12-16 04:12:50,285 INFO L933 BasicCegarLoop]: 2305 mSDtfsCounter, 6 mSDsluCounter, 9195 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11500 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 04:12:50,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 11500 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 04:12:50,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3891 states. [2021-12-16 04:12:50,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3891 to 3891. [2021-12-16 04:12:50,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3891 states, 2770 states have (on average 1.3509025270758124) internal successors, (3742), 2825 states have internal predecessors, (3742), 868 states have call successors, (868), 243 states have call predecessors, (868), 252 states have return successors, (919), 858 states have call predecessors, (919), 866 states have call successors, (919) [2021-12-16 04:12:50,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3891 states to 3891 states and 5529 transitions. [2021-12-16 04:12:50,433 INFO L78 Accepts]: Start accepts. Automaton has 3891 states and 5529 transitions. Word has length 436 [2021-12-16 04:12:50,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:12:50,434 INFO L470 AbstractCegarLoop]: Abstraction has 3891 states and 5529 transitions. [2021-12-16 04:12:50,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.8) internal successors, (139), 6 states have internal predecessors, (139), 3 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-12-16 04:12:50,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3891 states and 5529 transitions. [2021-12-16 04:12:50,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2021-12-16 04:12:50,445 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:12:50,445 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2021-12-16 04:12:50,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-16 04:12:50,663 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,SelfDestructingSolverStorable5 [2021-12-16 04:12:50,664 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:12:50,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:12:50,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1170774567, now seen corresponding path program 1 times [2021-12-16 04:12:50,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:12:50,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527821324] [2021-12-16 04:12:50,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:12:50,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:12:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:12:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:12:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:12:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:12:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:12:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:12:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 04:12:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:50,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 04:12:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 04:12:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-16 04:12:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-16 04:12:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-16 04:12:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-16 04:12:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-16 04:12:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-16 04:12:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-16 04:12:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-16 04:12:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-16 04:12:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-16 04:12:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-16 04:12:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-16 04:12:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-16 04:12:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-16 04:12:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-12-16 04:12:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:12:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 04:12:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 04:12:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-12-16 04:12:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2021-12-16 04:12:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-12-16 04:12:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 04:12:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-12-16 04:12:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-12-16 04:12:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:51,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1643 trivial. 0 not checked. [2021-12-16 04:12:51,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:12:51,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527821324] [2021-12-16 04:12:51,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527821324] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 04:12:51,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487002132] [2021-12-16 04:12:51,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:12:51,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 04:12:51,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:12:51,296 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 04:12:51,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 04:12:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:52,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 4022 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-16 04:12:52,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:12:53,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1648 trivial. 0 not checked. [2021-12-16 04:12:53,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:12:53,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487002132] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:12:53,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 04:12:53,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2021-12-16 04:12:53,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718302369] [2021-12-16 04:12:53,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:12:53,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:12:53,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:12:53,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:12:53,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-16 04:12:53,453 INFO L87 Difference]: Start difference. First operand 3891 states and 5529 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) [2021-12-16 04:12:53,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:12:53,571 INFO L93 Difference]: Finished difference Result 7729 states and 11041 transitions. [2021-12-16 04:12:53,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:12:53,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) Word has length 445 [2021-12-16 04:12:53,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:12:53,596 INFO L225 Difference]: With dead ends: 7729 [2021-12-16 04:12:53,597 INFO L226 Difference]: Without dead ends: 3905 [2021-12-16 04:12:53,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-16 04:12:53,610 INFO L933 BasicCegarLoop]: 2320 mSDtfsCounter, 2 mSDsluCounter, 6954 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 9274 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 04:12:53,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 9274 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 04:12:53,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3905 states. [2021-12-16 04:12:53,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3905 to 3899. [2021-12-16 04:12:53,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3899 states, 2776 states have (on average 1.3501440922190202) internal successors, (3748), 2831 states have internal predecessors, (3748), 868 states have call successors, (868), 243 states have call predecessors, (868), 254 states have return successors, (929), 860 states have call predecessors, (929), 866 states have call successors, (929) [2021-12-16 04:12:53,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3899 states to 3899 states and 5545 transitions. [2021-12-16 04:12:53,740 INFO L78 Accepts]: Start accepts. Automaton has 3899 states and 5545 transitions. Word has length 445 [2021-12-16 04:12:53,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:12:53,741 INFO L470 AbstractCegarLoop]: Abstraction has 3899 states and 5545 transitions. [2021-12-16 04:12:53,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) [2021-12-16 04:12:53,741 INFO L276 IsEmpty]: Start isEmpty. Operand 3899 states and 5545 transitions. [2021-12-16 04:12:53,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-12-16 04:12:53,750 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:12:53,750 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1] [2021-12-16 04:12:53,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-16 04:12:53,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 04:12:53,964 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:12:53,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:12:53,964 INFO L85 PathProgramCache]: Analyzing trace with hash -18710616, now seen corresponding path program 1 times [2021-12-16 04:12:53,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:12:53,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636506332] [2021-12-16 04:12:53,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:12:53,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:12:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:12:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:12:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:12:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:12:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:12:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:12:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 04:12:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 04:12:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 04:12:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-16 04:12:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-16 04:12:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-16 04:12:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-16 04:12:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-16 04:12:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-16 04:12:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-16 04:12:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-16 04:12:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-16 04:12:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-16 04:12:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-16 04:12:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-16 04:12:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-16 04:12:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-16 04:12:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:12:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-12-16 04:12:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:12:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 04:12:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:12:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 04:12:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-12-16 04:12:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2021-12-16 04:12:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-12-16 04:12:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-16 04:12:54,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-12-16 04:12:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-12-16 04:12:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:54,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1643 trivial. 0 not checked. [2021-12-16 04:12:54,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:12:54,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636506332] [2021-12-16 04:12:54,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636506332] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 04:12:54,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749512397] [2021-12-16 04:12:54,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:12:54,599 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 04:12:54,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:12:54,600 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 04:12:54,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 04:12:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:12:56,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 4025 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-16 04:12:56,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:12:56,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 360 proven. 1 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2021-12-16 04:12:56,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 04:12:57,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 1567 trivial. 0 not checked. [2021-12-16 04:12:57,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749512397] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 04:12:57,558 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 04:12:57,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 20 [2021-12-16 04:12:57,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015359808] [2021-12-16 04:12:57,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 04:12:57,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-16 04:12:57,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:12:57,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-16 04:12:57,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-12-16 04:12:57,560 INFO L87 Difference]: Start difference. First operand 3899 states and 5545 transitions. Second operand has 20 states, 18 states have (on average 12.277777777777779) internal successors, (221), 14 states have internal predecessors, (221), 4 states have call successors, (99), 7 states have call predecessors, (99), 6 states have return successors, (76), 5 states have call predecessors, (76), 4 states have call successors, (76)