./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 e19ca921 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-dev-e19ca92 [2021-12-22 14:51:59,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:51:59,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:51:59,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:51:59,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:51:59,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:51:59,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:51:59,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:51:59,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:51:59,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:51:59,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:51:59,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:51:59,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:51:59,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:51:59,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:51:59,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:51:59,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:51:59,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:51:59,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:51:59,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:51:59,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:51:59,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:51:59,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:51:59,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:51:59,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:51:59,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:51:59,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:51:59,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:51:59,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:51:59,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:51:59,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:51:59,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:51:59,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:51:59,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:51:59,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:51:59,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:51:59,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:51:59,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:51:59,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:51:59,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:51:59,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:51:59,547 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:51:59,570 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:51:59,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:51:59,571 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:51:59,571 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:51:59,572 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:51:59,572 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:51:59,573 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:51:59,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:51:59,573 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:51:59,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:51:59,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:51:59,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:51:59,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:51:59,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:51:59,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:51:59,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:51:59,575 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:51:59,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:51:59,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:51:59,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:51:59,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:51:59,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:51:59,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:51:59,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:51:59,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:51:59,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:51:59,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:51:59,577 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:51:59,578 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:51:59,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:51:59,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:51:59,578 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0de3702172247e9daf688602f826d117afa5d623a980b5c7e35d9c75cbe83a45 [2021-12-22 14:51:59,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:51:59,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:51:59,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:51:59,811 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:51:59,812 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:51:59,813 INFO L432 ainManager$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 [2021-12-22 14:51:59,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b81d58d5/f40a945c9e2f4206a94a0d015864198b/FLAG9ce7652d2 [2021-12-22 14:52:00,479 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:52:00,480 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 [2021-12-22 14:52:00,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b81d58d5/f40a945c9e2f4206a94a0d015864198b/FLAG9ce7652d2 [2021-12-22 14:52:00,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b81d58d5/f40a945c9e2f4206a94a0d015864198b [2021-12-22 14:52:00,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:52:00,690 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:52:00,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:52:00,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:52:00,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:52:00,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:52:00" (1/1) ... [2021-12-22 14:52:00,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@393d4125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:52:00, skipping insertion in model container [2021-12-22 14:52:00,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:52:00" (1/1) ... [2021-12-22 14:52:00,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:52:00,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:52:01,833 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] [2021-12-22 14:52:01,852 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:52:01,864 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:52:02,046 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] [2021-12-22 14:52:02,051 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:52:02,130 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:52:02,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:52:02 WrapperNode [2021-12-22 14:52:02,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:52:02,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:52:02,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:52:02,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:52:02,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:52:02" (1/1) ... [2021-12-22 14:52:02,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:52:02" (1/1) ... [2021-12-22 14:52:02,290 INFO L137 Inliner]: procedures = 258, calls = 1568, calls flagged for inlining = 102, calls inlined = 102, statements flattened = 4328 [2021-12-22 14:52:02,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:52:02,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:52:02,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:52:02,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:52:02,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:52:02" (1/1) ... [2021-12-22 14:52:02,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:52:02" (1/1) ... [2021-12-22 14:52:02,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:52:02" (1/1) ... [2021-12-22 14:52:02,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:52:02" (1/1) ... [2021-12-22 14:52:02,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:52:02" (1/1) ... [2021-12-22 14:52:02,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:52:02" (1/1) ... [2021-12-22 14:52:02,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:52:02" (1/1) ... [2021-12-22 14:52:02,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:52:02,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:52:02,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:52:02,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:52:02,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:52:02" (1/1) ... [2021-12-22 14:52:02,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:52:02,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:52:02,556 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) [2021-12-22 14:52:02,579 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 [2021-12-22 14:52:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2021-12-22 14:52:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2021-12-22 14:52:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-12-22 14:52:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-12-22 14:52:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-22 14:52:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure queue_if_no_path [2021-12-22 14:52:02,584 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_if_no_path [2021-12-22 14:52:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:52:02,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:52:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 14:52:02,584 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 14:52:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_message [2021-12-22 14:52:02,585 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_message [2021-12-22 14:52:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_end_io [2021-12-22 14:52:02,585 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_end_io [2021-12-22 14:52:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_ctr [2021-12-22 14:52:02,585 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_ctr [2021-12-22 14:52:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-22 14:52:02,585 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-22 14:52:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:52:02,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:52:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-22 14:52:02,586 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-22 14:52:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure bypass_pg_num [2021-12-22 14:52:02,586 INFO L138 BoogieDeclarations]: Found implementation of procedure bypass_pg_num [2021-12-22 14:52:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-22 14:52:02,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-22 14:52:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-22 14:52:02,586 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-22 14:52:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_clone_and_map [2021-12-22 14:52:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_clone_and_map [2021-12-22 14:52:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure parse_path_selector [2021-12-22 14:52:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_path_selector [2021-12-22 14:52:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_iterate_devices [2021-12-22 14:52:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_iterate_devices [2021-12-22 14:52:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:52:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:52:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:52:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:52:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-22 14:52:02,588 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-22 14:52:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:52:02,588 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:52:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_dtr [2021-12-22 14:52:02,588 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_dtr [2021-12-22 14:52:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:52:02,588 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:52:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_detach [2021-12-22 14:52:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_detach [2021-12-22 14:52:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg_group [2021-12-22 14:52:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg_group [2021-12-22 14:52:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_path_selector [2021-12-22 14:52:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_path_selector [2021-12-22 14:52:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:52:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:52:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_handler_exist [2021-12-22 14:52:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_handler_exist [2021-12-22 14:52:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-22 14:52:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-22 14:52:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_ioctl [2021-12-22 14:52:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_ioctl [2021-12-22 14:52:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure clear_mapinfo [2021-12-22 14:52:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_mapinfo [2021-12-22 14:52:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2021-12-22 14:52:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2021-12-22 14:52:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure free_priority_group [2021-12-22 14:52:02,591 INFO L138 BoogieDeclarations]: Found implementation of procedure free_priority_group [2021-12-22 14:52:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:52:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 14:52:02,591 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 14:52:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-12-22 14:52:02,591 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-12-22 14:52:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:52:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure __must_push_back [2021-12-22 14:52:02,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __must_push_back [2021-12-22 14:52:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-22 14:52:02,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-22 14:52:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-22 14:52:02,592 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-22 14:52:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 14:52:02,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 14:52:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:52:02,592 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:52:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure get_path_selector [2021-12-22 14:52:02,593 INFO L138 BoogieDeclarations]: Found implementation of procedure get_path_selector [2021-12-22 14:52:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-22 14:52:02,593 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-22 14:52:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:52:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_release_clone [2021-12-22 14:52:02,593 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_release_clone [2021-12-22 14:52:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:52:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure bypass_pg [2021-12-22 14:52:02,594 INFO L138 BoogieDeclarations]: Found implementation of procedure bypass_pg [2021-12-22 14:52:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_event [2021-12-22 14:52:02,594 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_event [2021-12-22 14:52:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-22 14:52:02,594 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-22 14:52:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 14:52:02,594 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 14:52:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-22 14:52:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-22 14:52:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure free_pgpath [2021-12-22 14:52:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pgpath [2021-12-22 14:52:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 14:52:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 14:52:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure __choose_path_in_pg [2021-12-22 14:52:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __choose_path_in_pg [2021-12-22 14:52:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 14:52:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 14:52:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure activate_path [2021-12-22 14:52:02,596 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_path [2021-12-22 14:52:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~status_type_t~0~X~$Pointer$~X~int~TO~int [2021-12-22 14:52:02,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~status_type_t~0~X~$Pointer$~X~int~TO~int [2021-12-22 14:52:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure flush_multipath_work [2021-12-22 14:52:02,596 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_multipath_work [2021-12-22 14:52:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-22 14:52:02,596 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-22 14:52:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_attach [2021-12-22 14:52:02,597 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_attach [2021-12-22 14:52:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-22 14:52:02,597 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-22 14:52:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_run_md_queue_async [2021-12-22 14:52:02,597 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_run_md_queue_async [2021-12-22 14:52:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2021-12-22 14:52:02,597 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2021-12-22 14:52:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_postsuspend [2021-12-22 14:52:02,597 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_postsuspend [2021-12-22 14:52:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure fail_path [2021-12-22 14:52:02,598 INFO L138 BoogieDeclarations]: Found implementation of procedure fail_path [2021-12-22 14:52:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:52:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_map [2021-12-22 14:52:02,598 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_map [2021-12-22 14:52:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:52:02,598 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:52:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-22 14:52:02,598 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-22 14:52:02,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:52:02,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:52:02,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:52:02,599 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-22 14:52:02,599 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-22 14:52:02,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 14:52:02,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 14:52:02,599 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg [2021-12-22 14:52:02,599 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg [2021-12-22 14:52:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2021-12-22 14:52:02,600 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2021-12-22 14:52:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure __choose_pgpath [2021-12-22 14:52:02,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __choose_pgpath [2021-12-22 14:52:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:52:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 14:52:02,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 14:52:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure dm_path_uevent [2021-12-22 14:52:02,600 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_path_uevent [2021-12-22 14:52:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-12-22 14:52:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-12-22 14:52:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-22 14:52:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-22 14:52:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:52:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-22 14:52:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-22 14:52:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:52:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 14:52:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure parse_priority_group [2021-12-22 14:52:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_priority_group [2021-12-22 14:52:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:52:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:52:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure __pg_init_all_paths [2021-12-22 14:52:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __pg_init_all_paths [2021-12-22 14:52:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-12-22 14:52:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2021-12-22 14:52:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_presuspend [2021-12-22 14:52:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_presuspend [2021-12-22 14:52:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure dm_consume_args [2021-12-22 14:52:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_consume_args [2021-12-22 14:52:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure dm_shift_arg [2021-12-22 14:52:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_shift_arg [2021-12-22 14:52:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-22 14:52:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-22 14:52:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure free_multipath [2021-12-22 14:52:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure free_multipath [2021-12-22 14:52:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure __multipath_map [2021-12-22 14:52:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __multipath_map [2021-12-22 14:52:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-22 14:52:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-22 14:52:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2021-12-22 14:52:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2021-12-22 14:52:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_status [2021-12-22 14:52:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_status [2021-12-22 14:52:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-22 14:52:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-22 14:52:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_busy [2021-12-22 14:52:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_busy [2021-12-22 14:52:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-22 14:52:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-22 14:52:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2021-12-22 14:52:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure __find_path_selector_type [2021-12-22 14:52:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_path_selector_type [2021-12-22 14:52:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-22 14:52:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-22 14:52:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_resume [2021-12-22 14:52:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_resume [2021-12-22 14:52:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:52:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-22 14:52:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-22 14:52:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2021-12-22 14:52:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2021-12-22 14:52:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:52:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:52:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 14:52:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 14:52:03,099 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:52:03,101 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:52:03,167 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:52:05,151 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:52:05,162 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:52:05,162 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:52:05,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:52:05 BoogieIcfgContainer [2021-12-22 14:52:05,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:52:05,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:52:05,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:52:05,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:52:05,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:52:00" (1/3) ... [2021-12-22 14:52:05,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7101ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:52:05, skipping insertion in model container [2021-12-22 14:52:05,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:52:02" (2/3) ... [2021-12-22 14:52:05,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7101ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:52:05, skipping insertion in model container [2021-12-22 14:52:05,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:52:05" (3/3) ... [2021-12-22 14:52:05,171 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i [2021-12-22 14:52:05,175 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:52:05,175 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:52:05,208 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:52:05,213 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 [2021-12-22 14:52:05,213 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:52:05,246 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) [2021-12-22 14:52:05,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-12-22 14:52:05,268 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:52:05,269 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] [2021-12-22 14:52:05,269 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:52:05,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:52:05,273 INFO L85 PathProgramCache]: Analyzing trace with hash 515794747, now seen corresponding path program 1 times [2021-12-22 14:52:05,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:52:05,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633320116] [2021-12-22 14:52:05,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:52:05,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:52:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:52:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:52:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:52:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:52:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:52:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:52:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:52:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:52:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:52:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:05,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:52:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 14:52:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-22 14:52:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-22 14:52:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-22 14:52:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-22 14:52:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-22 14:52:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-22 14:52:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-22 14:52:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 14:52:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-22 14:52:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-22 14:52:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-22 14:52:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:06,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1248 trivial. 0 not checked. [2021-12-22 14:52:06,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:52:06,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633320116] [2021-12-22 14:52:06,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633320116] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:52:06,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:52:06,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:52:06,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893015626] [2021-12-22 14:52:06,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:52:06,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:52:06,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:52:06,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:52:06,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:52:06,202 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) [2021-12-22 14:52:10,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:52:10,528 INFO L93 Difference]: Finished difference Result 3664 states and 5412 transitions. [2021-12-22 14:52:10,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:52:10,531 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 [2021-12-22 14:52:10,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:52:10,553 INFO L225 Difference]: With dead ends: 3664 [2021-12-22 14:52:10,553 INFO L226 Difference]: Without dead ends: 2015 [2021-12-22 14:52:10,564 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 [2021-12-22 14:52:10,567 INFO L933 BasicCegarLoop]: 2049 mSDtfsCounter, 3268 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 2419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3380 SdHoareTripleChecker+Valid, 3567 SdHoareTripleChecker+Invalid, 3900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2419 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:52:10,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3380 Valid, 3567 Invalid, 3900 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2419 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-12-22 14:52:10,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2021-12-22 14:52:10,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1628. [2021-12-22 14:52:10,659 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) [2021-12-22 14:52:10,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2317 transitions. [2021-12-22 14:52:10,669 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2317 transitions. Word has length 318 [2021-12-22 14:52:10,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:52:10,669 INFO L470 AbstractCegarLoop]: Abstraction has 1628 states and 2317 transitions. [2021-12-22 14:52:10,669 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) [2021-12-22 14:52:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2317 transitions. [2021-12-22 14:52:10,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-12-22 14:52:10,674 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:52:10,674 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] [2021-12-22 14:52:10,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:52:10,674 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:52:10,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:52:10,675 INFO L85 PathProgramCache]: Analyzing trace with hash -2143438509, now seen corresponding path program 1 times [2021-12-22 14:52:10,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:52:10,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689801474] [2021-12-22 14:52:10,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:52:10,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:52:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:52:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:52:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:52:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:52:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:52:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:52:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:52:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:52:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:10,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:52:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:52:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 14:52:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-22 14:52:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-22 14:52:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-22 14:52:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-22 14:52:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-22 14:52:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-22 14:52:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-22 14:52:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 14:52:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-22 14:52:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-22 14:52:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-22 14:52:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:11,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1248 trivial. 0 not checked. [2021-12-22 14:52:11,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:52:11,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689801474] [2021-12-22 14:52:11,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689801474] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:52:11,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:52:11,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:52:11,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135009884] [2021-12-22 14:52:11,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:52:11,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:52:11,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:52:11,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:52:11,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:52:11,201 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) [2021-12-22 14:52:19,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:52:19,145 INFO L93 Difference]: Finished difference Result 5549 states and 8145 transitions. [2021-12-22 14:52:19,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 14:52:19,146 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 [2021-12-22 14:52:19,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:52:19,164 INFO L225 Difference]: With dead ends: 5549 [2021-12-22 14:52:19,164 INFO L226 Difference]: Without dead ends: 3962 [2021-12-22 14:52:19,170 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 [2021-12-22 14:52:19,171 INFO L933 BasicCegarLoop]: 2345 mSDtfsCounter, 5907 mSDsluCounter, 3824 mSDsCounter, 0 mSdLazyCounter, 4522 mSolverCounterSat, 3134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6259 SdHoareTripleChecker+Valid, 6169 SdHoareTripleChecker+Invalid, 7656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3134 IncrementalHoareTripleChecker+Valid, 4522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-12-22 14:52:19,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6259 Valid, 6169 Invalid, 7656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3134 Valid, 4522 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2021-12-22 14:52:19,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3962 states. [2021-12-22 14:52:19,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3962 to 3273. [2021-12-22 14:52:19,251 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) [2021-12-22 14:52:19,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3273 states to 3273 states and 4679 transitions. [2021-12-22 14:52:19,265 INFO L78 Accepts]: Start accepts. Automaton has 3273 states and 4679 transitions. Word has length 318 [2021-12-22 14:52:19,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:52:19,266 INFO L470 AbstractCegarLoop]: Abstraction has 3273 states and 4679 transitions. [2021-12-22 14:52:19,266 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) [2021-12-22 14:52:19,266 INFO L276 IsEmpty]: Start isEmpty. Operand 3273 states and 4679 transitions. [2021-12-22 14:52:19,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-12-22 14:52:19,274 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:52:19,274 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] [2021-12-22 14:52:19,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:52:19,274 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:52:19,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:52:19,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1222623352, now seen corresponding path program 1 times [2021-12-22 14:52:19,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:52:19,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808430514] [2021-12-22 14:52:19,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:52:19,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:52:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:52:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:52:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:52:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:52:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:52:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:52:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:52:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:52:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:52:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:52:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 14:52:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-22 14:52:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-22 14:52:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-22 14:52:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-22 14:52:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-22 14:52:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-22 14:52:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-22 14:52:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 14:52:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-22 14:52:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-22 14:52:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-22 14:52:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-22 14:52:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-12-22 14:52:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-12-22 14:52:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 14:52:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-12-22 14:52:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2021-12-22 14:52:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:19,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1248 trivial. 0 not checked. [2021-12-22 14:52:19,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:52:19,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808430514] [2021-12-22 14:52:19,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808430514] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:52:19,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:52:19,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 14:52:19,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189796801] [2021-12-22 14:52:19,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:52:19,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 14:52:19,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:52:19,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 14:52:19,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:52:19,737 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) [2021-12-22 14:52:30,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:52:30,544 INFO L93 Difference]: Finished difference Result 7956 states and 11622 transitions. [2021-12-22 14:52:30,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-22 14:52:30,544 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 [2021-12-22 14:52:30,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:52:30,569 INFO L225 Difference]: With dead ends: 7956 [2021-12-22 14:52:30,569 INFO L226 Difference]: Without dead ends: 4735 [2021-12-22 14:52:30,583 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 [2021-12-22 14:52:30,584 INFO L933 BasicCegarLoop]: 2042 mSDtfsCounter, 1841 mSDsluCounter, 3873 mSDsCounter, 0 mSdLazyCounter, 5276 mSolverCounterSat, 965 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 5915 SdHoareTripleChecker+Invalid, 6241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 965 IncrementalHoareTripleChecker+Valid, 5276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:52:30,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2069 Valid, 5915 Invalid, 6241 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [965 Valid, 5276 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2021-12-22 14:52:30,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4735 states. [2021-12-22 14:52:30,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4735 to 3859. [2021-12-22 14:52:30,710 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) [2021-12-22 14:52:30,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 5475 transitions. [2021-12-22 14:52:30,796 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 5475 transitions. Word has length 377 [2021-12-22 14:52:30,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:52:30,798 INFO L470 AbstractCegarLoop]: Abstraction has 3859 states and 5475 transitions. [2021-12-22 14:52:30,799 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) [2021-12-22 14:52:30,799 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 5475 transitions. [2021-12-22 14:52:30,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-12-22 14:52:30,826 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:52:30,827 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] [2021-12-22 14:52:30,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:52:30,827 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:52:30,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:52:30,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1463686418, now seen corresponding path program 1 times [2021-12-22 14:52:30,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:52:30,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039869747] [2021-12-22 14:52:30,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:52:30,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:52:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:30,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:52:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:52:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:52:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:52:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:52:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:52:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:52:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:52:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:52:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:52:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 14:52:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-22 14:52:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-22 14:52:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-22 14:52:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-22 14:52:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-22 14:52:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-22 14:52:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-22 14:52:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 14:52:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-22 14:52:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-22 14:52:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-22 14:52:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-22 14:52:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-22 14:52:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-22 14:52:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-12-22 14:52:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2021-12-22 14:52:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 14:52:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-12-22 14:52:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-12-22 14:52:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:31,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1423 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1420 trivial. 0 not checked. [2021-12-22 14:52:31,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:52:31,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039869747] [2021-12-22 14:52:31,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039869747] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:52:31,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:52:31,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 14:52:31,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374026538] [2021-12-22 14:52:31,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:52:31,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 14:52:31,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:52:31,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 14:52:31,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:52:31,360 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) [2021-12-22 14:52:40,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:52:40,779 INFO L93 Difference]: Finished difference Result 8539 states and 12419 transitions. [2021-12-22 14:52:40,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 14:52:40,779 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 [2021-12-22 14:52:40,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:52:40,814 INFO L225 Difference]: With dead ends: 8539 [2021-12-22 14:52:40,814 INFO L226 Difference]: Without dead ends: 4740 [2021-12-22 14:52:40,829 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 [2021-12-22 14:52:40,830 INFO L933 BasicCegarLoop]: 2005 mSDtfsCounter, 1392 mSDsluCounter, 4816 mSDsCounter, 0 mSdLazyCounter, 4794 mSolverCounterSat, 750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 6821 SdHoareTripleChecker+Invalid, 5544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 750 IncrementalHoareTripleChecker+Valid, 4794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:52:40,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1574 Valid, 6821 Invalid, 5544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [750 Valid, 4794 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2021-12-22 14:52:40,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4740 states. [2021-12-22 14:52:41,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4740 to 3862. [2021-12-22 14:52:41,030 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) [2021-12-22 14:52:41,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 5476 transitions. [2021-12-22 14:52:41,042 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 5476 transitions. Word has length 412 [2021-12-22 14:52:41,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:52:41,042 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 5476 transitions. [2021-12-22 14:52:41,042 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) [2021-12-22 14:52:41,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 5476 transitions. [2021-12-22 14:52:41,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2021-12-22 14:52:41,053 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:52:41,053 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] [2021-12-22 14:52:41,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:52:41,053 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:52:41,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:52:41,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1972843834, now seen corresponding path program 1 times [2021-12-22 14:52:41,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:52:41,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742436982] [2021-12-22 14:52:41,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:52:41,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:52:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:52:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:52:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:52:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:52:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:52:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:52:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:52:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:52:41,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:52:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:52:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 14:52:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-22 14:52:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-22 14:52:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-22 14:52:41,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-22 14:52:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-22 14:52:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-22 14:52:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-22 14:52:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 14:52:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-22 14:52:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-22 14:52:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-22 14:52:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-22 14:52:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-22 14:52:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-12-22 14:52:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-22 14:52:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-22 14:52:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 14:52:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-12-22 14:52:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2021-12-22 14:52:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:41,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1423 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2021-12-22 14:52:41,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:52:41,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742436982] [2021-12-22 14:52:41,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742436982] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:52:41,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303045249] [2021-12-22 14:52:41,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:52:41,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:52:41,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:52:41,670 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) [2021-12-22 14:52:41,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 14:52:42,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:42,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 3820 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-22 14:52:42,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:52:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1423 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1423 trivial. 0 not checked. [2021-12-22 14:52:43,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:52:43,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303045249] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:52:43,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:52:43,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2021-12-22 14:52:43,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84383721] [2021-12-22 14:52:43,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:52:43,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:52:43,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:52:43,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:52:43,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-22 14:52:43,532 INFO L87 Difference]: Start difference. First operand 3862 states and 5476 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2021-12-22 14:52:43,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:52:43,734 INFO L93 Difference]: Finished difference Result 7672 states and 10936 transitions. [2021-12-22 14:52:43,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:52:43,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 416 [2021-12-22 14:52:43,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:52:43,753 INFO L225 Difference]: With dead ends: 7672 [2021-12-22 14:52:43,754 INFO L226 Difference]: Without dead ends: 3876 [2021-12-22 14:52:43,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 541 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-22 14:52:43,771 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 [2021-12-22 14:52:43,773 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] [2021-12-22 14:52:43,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3876 states. [2021-12-22 14:52:43,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3876 to 3870. [2021-12-22 14:52:43,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3870 states, 2752 states have (on average 1.3531976744186047) internal successors, (3724), 2806 states have internal predecessors, (3724), 868 states have call successors, (868), 243 states have call predecessors, (868), 249 states have return successors, (900), 856 states have call predecessors, (900), 866 states have call successors, (900) [2021-12-22 14:52:43,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3870 states to 3870 states and 5492 transitions. [2021-12-22 14:52:43,951 INFO L78 Accepts]: Start accepts. Automaton has 3870 states and 5492 transitions. Word has length 416 [2021-12-22 14:52:43,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:52:43,953 INFO L470 AbstractCegarLoop]: Abstraction has 3870 states and 5492 transitions. [2021-12-22 14:52:43,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2021-12-22 14:52:43,954 INFO L276 IsEmpty]: Start isEmpty. Operand 3870 states and 5492 transitions. [2021-12-22 14:52:43,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2021-12-22 14:52:43,962 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:52:43,962 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, 1, 1] [2021-12-22 14:52:44,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 14:52:44,175 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 [2021-12-22 14:52:44,176 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:52:44,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:52:44,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1673984889, now seen corresponding path program 1 times [2021-12-22 14:52:44,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:52:44,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550975874] [2021-12-22 14:52:44,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:52:44,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:52:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:52:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:52:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:52:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:52:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:52:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:52:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:52:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:52:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:52:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:52:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 14:52:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-22 14:52:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-22 14:52:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-22 14:52:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-22 14:52:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-22 14:52:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-22 14:52:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-22 14:52:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 14:52:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-22 14:52:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-22 14:52:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-22 14:52:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-22 14:52:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-22 14:52:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-12-22 14:52:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-22 14:52:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-22 14:52:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 14:52:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-12-22 14:52:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2021-12-22 14:52:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:44,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1423 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2021-12-22 14:52:44,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:52:44,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550975874] [2021-12-22 14:52:44,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550975874] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:52:44,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468472946] [2021-12-22 14:52:44,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:52:44,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:52:44,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:52:44,844 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) [2021-12-22 14:52:44,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 14:52:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:46,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 3823 conjuncts, 51 conjunts are in the unsatisfiable core [2021-12-22 14:52:46,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:52:46,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1423 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1421 trivial. 0 not checked. [2021-12-22 14:52:46,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:52:46,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468472946] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:52:46,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:52:46,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 19 [2021-12-22 14:52:46,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357637476] [2021-12-22 14:52:46,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:52:46,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 14:52:46,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:52:46,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 14:52:46,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2021-12-22 14:52:46,877 INFO L87 Difference]: Start difference. First operand 3870 states and 5492 transitions. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 9 states have internal predecessors, (121), 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) [2021-12-22 14:52:47,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:52:47,506 INFO L93 Difference]: Finished difference Result 7714 states and 10985 transitions. [2021-12-22 14:52:47,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-22 14:52:47,506 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 9 states have internal predecessors, (121), 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 418 [2021-12-22 14:52:47,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:52:47,523 INFO L225 Difference]: With dead ends: 7714 [2021-12-22 14:52:47,524 INFO L226 Difference]: Without dead ends: 3910 [2021-12-22 14:52:47,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 537 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-12-22 14:52:47,541 INFO L933 BasicCegarLoop]: 2311 mSDtfsCounter, 19 mSDsluCounter, 20779 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 23090 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-22 14:52:47,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 23090 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-22 14:52:47,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3910 states. [2021-12-22 14:52:47,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3910 to 3896. [2021-12-22 14:52:47,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 2773 states have (on average 1.3505228993869456) internal successors, (3745), 2828 states have internal predecessors, (3745), 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) [2021-12-22 14:52:47,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 5542 transitions. [2021-12-22 14:52:47,680 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 5542 transitions. Word has length 418 [2021-12-22 14:52:47,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:52:47,681 INFO L470 AbstractCegarLoop]: Abstraction has 3896 states and 5542 transitions. [2021-12-22 14:52:47,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 9 states have internal predecessors, (121), 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) [2021-12-22 14:52:47,682 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 5542 transitions. [2021-12-22 14:52:47,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2021-12-22 14:52:47,690 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:52:47,691 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, 1, 1] [2021-12-22 14:52:47,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-22 14:52:47,908 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 [2021-12-22 14:52:47,909 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:52:47,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:52:47,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1474914900, now seen corresponding path program 1 times [2021-12-22 14:52:47,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:52:47,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551386029] [2021-12-22 14:52:47,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:52:47,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:52:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:52:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:52:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:52:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:52:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:52:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:52:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:52:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:52:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:52:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:52:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 14:52:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-22 14:52:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-22 14:52:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-22 14:52:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-22 14:52:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-22 14:52:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-22 14:52:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-22 14:52:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 14:52:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-22 14:52:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-22 14:52:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-22 14:52:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-22 14:52:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-22 14:52:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:52:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:52:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-22 14:52:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-12-22 14:52:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2021-12-22 14:52:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2021-12-22 14:52:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 14:52:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-12-22 14:52:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-12-22 14:52:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:48,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1531 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1526 trivial. 0 not checked. [2021-12-22 14:52:48,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:52:48,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551386029] [2021-12-22 14:52:48,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551386029] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:52:48,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013447417] [2021-12-22 14:52:48,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:52:48,489 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:52:48,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:52:48,508 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) [2021-12-22 14:52:48,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 14:52:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:49,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 3890 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-22 14:52:49,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:52:50,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1531 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 1195 trivial. 0 not checked. [2021-12-22 14:52:50,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:52:50,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013447417] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:52:50,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:52:50,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2021-12-22 14:52:50,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145111139] [2021-12-22 14:52:50,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:52:50,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:52:50,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:52:50,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:52:50,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:52:50,555 INFO L87 Difference]: Start difference. First operand 3896 states and 5542 transitions. Second operand has 6 states, 5 states have (on average 28.2) internal successors, (141), 6 states have internal predecessors, (141), 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) [2021-12-22 14:52:50,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:52:50,772 INFO L93 Difference]: Finished difference Result 7766 states and 11080 transitions. [2021-12-22 14:52:50,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 14:52:50,773 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 28.2) internal successors, (141), 6 states have internal predecessors, (141), 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 438 [2021-12-22 14:52:50,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:52:50,794 INFO L225 Difference]: With dead ends: 7766 [2021-12-22 14:52:50,794 INFO L226 Difference]: Without dead ends: 3899 [2021-12-22 14:52:50,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 570 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-12-22 14:52:50,804 INFO L933 BasicCegarLoop]: 2305 mSDtfsCounter, 6 mSDsluCounter, 9195 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2021-12-22 14:52:50,804 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] [2021-12-22 14:52:50,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3899 states. [2021-12-22 14:52:50,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3899 to 3899. [2021-12-22 14:52:50,915 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) [2021-12-22 14:52:50,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3899 states to 3899 states and 5545 transitions. [2021-12-22 14:52:50,926 INFO L78 Accepts]: Start accepts. Automaton has 3899 states and 5545 transitions. Word has length 438 [2021-12-22 14:52:50,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:52:50,926 INFO L470 AbstractCegarLoop]: Abstraction has 3899 states and 5545 transitions. [2021-12-22 14:52:50,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 28.2) internal successors, (141), 6 states have internal predecessors, (141), 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) [2021-12-22 14:52:50,927 INFO L276 IsEmpty]: Start isEmpty. Operand 3899 states and 5545 transitions. [2021-12-22 14:52:50,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-12-22 14:52:50,935 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:52:50,935 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] [2021-12-22 14:52:50,964 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-22 14:52:51,159 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 [2021-12-22 14:52:51,160 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:52:51,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:52:51,160 INFO L85 PathProgramCache]: Analyzing trace with hash -18710616, now seen corresponding path program 1 times [2021-12-22 14:52:51,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:52:51,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147046512] [2021-12-22 14:52:51,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:52:51,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:52:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:52:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:52:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:52:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:52:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:52:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:52:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:52:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:52:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:52:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 14:52:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 14:52:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-22 14:52:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-22 14:52:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-22 14:52:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-22 14:52:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-22 14:52:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-22 14:52:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-22 14:52:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-22 14:52:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-22 14:52:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-22 14:52:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-22 14:52:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-22 14:52:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:52:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-12-22 14:52:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:52:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:52:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:52:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-22 14:52:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-12-22 14:52:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2021-12-22 14:52:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-12-22 14:52:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 14:52:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-12-22 14:52:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-12-22 14:52:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1643 trivial. 0 not checked. [2021-12-22 14:52:51,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:52:51,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147046512] [2021-12-22 14:52:51,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147046512] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:52:51,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267943974] [2021-12-22 14:52:51,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:52:51,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:52:51,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:52:51,803 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) [2021-12-22 14:52:51,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 14:52:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:52:53,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 4025 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-22 14:52:53,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:52:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 428 proven. 15 refuted. 0 times theorem prover too weak. 1205 trivial. 0 not checked. [2021-12-22 14:52:54,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 14:52:55,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 70 proven. 11 refuted. 0 times theorem prover too weak. 1567 trivial. 0 not checked. [2021-12-22 14:52:55,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267943974] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 14:52:55,131 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 14:52:55,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 20 [2021-12-22 14:52:55,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787308550] [2021-12-22 14:52:55,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 14:52:55,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-22 14:52:55,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:52:55,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-22 14:52:55,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-12-22 14:52:55,133 INFO L87 Difference]: Start difference. First operand 3899 states and 5545 transitions. Second operand has 20 states, 18 states have (on average 11.944444444444445) internal successors, (215), 14 states have internal predecessors, (215), 4 states have call successors, (92), 7 states have call predecessors, (92), 6 states have return successors, (62), 5 states have call predecessors, (62), 4 states have call successors, (62)