./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.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 b1b2a361b7351c4ac2fc0213f47206309b2fae43ca25ec3cefac8a1c8b001422 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:17:51,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:17:51,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:17:51,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:17:51,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:17:51,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:17:51,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:17:51,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:17:51,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:17:51,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:17:51,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:17:51,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:17:51,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:17:51,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:17:51,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:17:51,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:17:51,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:17:51,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:17:51,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:17:51,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:17:51,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:17:51,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:17:51,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:17:51,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:17:51,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:17:51,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:17:51,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:17:51,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:17:51,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:17:51,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:17:51,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:17:51,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:17:51,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:17:51,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:17:51,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:17:51,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:17:51,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:17:51,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:17:51,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:17:51,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:17:51,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:17:51,267 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:17:51,290 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:17:51,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:17:51,291 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:17:51,291 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:17:51,292 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:17:51,292 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:17:51,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:17:51,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:17:51,293 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:17:51,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:17:51,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:17:51,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:17:51,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:17:51,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:17:51,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:17:51,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:17:51,295 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:17:51,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:17:51,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:17:51,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:17:51,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:17:51,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:17:51,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:17:51,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:17:51,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:17:51,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:17:51,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:17:51,297 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:17:51,297 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:17:51,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:17:51,297 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1b2a361b7351c4ac2fc0213f47206309b2fae43ca25ec3cefac8a1c8b001422 [2021-12-28 04:17:51,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:17:51,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:17:51,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:17:51,568 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:17:51,581 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:17:51,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2021-12-28 04:17:51,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f1791a9a/f4c8d53ece1345a587ebb418e9abb3f7/FLAG63e277042 [2021-12-28 04:17:52,164 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:17:52,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2021-12-28 04:17:52,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f1791a9a/f4c8d53ece1345a587ebb418e9abb3f7/FLAG63e277042 [2021-12-28 04:17:52,658 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f1791a9a/f4c8d53ece1345a587ebb418e9abb3f7 [2021-12-28 04:17:52,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:17:52,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:17:52,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:17:52,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:17:52,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:17:52,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:17:52" (1/1) ... [2021-12-28 04:17:52,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cfdfe7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:52, skipping insertion in model container [2021-12-28 04:17:52,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:17:52" (1/1) ... [2021-12-28 04:17:52,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:17:52,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:17:53,275 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-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i[129978,129991] [2021-12-28 04:17:53,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:17:53,360 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:17:53,469 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-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i[129978,129991] [2021-12-28 04:17:53,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:17:53,523 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:17:53,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:53 WrapperNode [2021-12-28 04:17:53,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:17:53,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:17:53,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:17:53,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:17:53,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:53" (1/1) ... [2021-12-28 04:17:53,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:53" (1/1) ... [2021-12-28 04:17:53,646 INFO L137 Inliner]: procedures = 188, calls = 548, calls flagged for inlining = 71, calls inlined = 66, statements flattened = 1576 [2021-12-28 04:17:53,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:17:53,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:17:53,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:17:53,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:17:53,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:53" (1/1) ... [2021-12-28 04:17:53,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:53" (1/1) ... [2021-12-28 04:17:53,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:53" (1/1) ... [2021-12-28 04:17:53,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:53" (1/1) ... [2021-12-28 04:17:53,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:53" (1/1) ... [2021-12-28 04:17:53,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:53" (1/1) ... [2021-12-28 04:17:53,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:53" (1/1) ... [2021-12-28 04:17:53,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:17:53,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:17:53,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:17:53,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:17:53,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:53" (1/1) ... [2021-12-28 04:17:53,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:17:53,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:17:53,786 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) [2021-12-28 04:17:53,790 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 [2021-12-28 04:17:53,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_serio_raw_mutex [2021-12-28 04:17:53,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_serio_raw_mutex [2021-12-28 04:17:53,818 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-28 04:17:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-28 04:17:53,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:17:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:17:53,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:17:53,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:17:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:17:53,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:17:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:17:53,820 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:17:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:17:53,820 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2021-12-28 04:17:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2021-12-28 04:17:53,820 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-28 04:17:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-28 04:17:53,820 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-28 04:17:53,821 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-28 04:17:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:17:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 04:17:53,821 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 04:17:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:17:53,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:17:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-28 04:17:53,821 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-28 04:17:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:17:53,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:17:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_disconnect [2021-12-28 04:17:53,822 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_disconnect [2021-12-28 04:17:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure serio_continue_rx [2021-12-28 04:17:53,822 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_continue_rx [2021-12-28 04:17:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:17:53,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:17:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:17:53,822 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:17:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:17:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_poll [2021-12-28 04:17:53,823 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_poll [2021-12-28 04:17:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-28 04:17:53,823 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-28 04:17:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-28 04:17:53,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-28 04:17:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:17:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-28 04:17:53,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-28 04:17:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:17:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure serio_set_drvdata [2021-12-28 04:17:53,825 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_set_drvdata [2021-12-28 04:17:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:17:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 04:17:53,825 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 04:17:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:17:53,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:17:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2021-12-28 04:17:53,825 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2021-12-28 04:17:53,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:17:53,826 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-28 04:17:53,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-28 04:17:53,827 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-28 04:17:53,827 INFO L130 BoogieDeclarations]: Found specification of procedure serio_pause_rx [2021-12-28 04:17:53,827 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_pause_rx [2021-12-28 04:17:53,827 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-12-28 04:17:53,827 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-12-28 04:17:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-12-28 04:17:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-12-28 04:17:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:17:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:17:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2021-12-28 04:17:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2021-12-28 04:17:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure serio_get_drvdata [2021-12-28 04:17:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_get_drvdata [2021-12-28 04:17:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 04:17:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 04:17:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2021-12-28 04:17:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2021-12-28 04:17:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-28 04:17:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-28 04:17:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-28 04:17:53,830 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-28 04:17:53,830 INFO L130 BoogieDeclarations]: Found specification of procedure serio_close [2021-12-28 04:17:53,830 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_close [2021-12-28 04:17:53,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_serio_raw_mutex [2021-12-28 04:17:53,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_serio_raw_mutex [2021-12-28 04:17:53,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:17:53,830 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_write [2021-12-28 04:17:53,830 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_write [2021-12-28 04:17:53,831 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fasync [2021-12-28 04:17:53,831 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fasync [2021-12-28 04:17:53,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:17:53,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:17:54,160 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:17:54,163 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:17:54,298 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:17:54,944 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:17:54,951 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:17:54,952 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:17:54,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:17:54 BoogieIcfgContainer [2021-12-28 04:17:54,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:17:54,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:17:54,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:17:54,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:17:54,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:17:52" (1/3) ... [2021-12-28 04:17:54,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1722d001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:17:54, skipping insertion in model container [2021-12-28 04:17:54,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:53" (2/3) ... [2021-12-28 04:17:54,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1722d001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:17:54, skipping insertion in model container [2021-12-28 04:17:54,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:17:54" (3/3) ... [2021-12-28 04:17:54,961 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2021-12-28 04:17:54,965 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:17:54,965 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:17:55,000 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:17:55,004 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 [2021-12-28 04:17:55,004 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:17:55,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 521 states, 368 states have (on average 1.3233695652173914) internal successors, (487), 387 states have internal predecessors, (487), 113 states have call successors, (113), 39 states have call predecessors, (113), 38 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2021-12-28 04:17:55,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-28 04:17:55,041 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:17:55,042 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:17:55,042 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:17:55,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:17:55,049 INFO L85 PathProgramCache]: Analyzing trace with hash 263673512, now seen corresponding path program 1 times [2021-12-28 04:17:55,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:17:55,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159196353] [2021-12-28 04:17:55,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:17:55,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:17:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:17:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:17:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:17:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:17:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:17:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:17:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:17:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:17:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:17:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:17:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:17:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:17:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:17:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:17:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:55,696 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-28 04:17:55,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:17:55,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159196353] [2021-12-28 04:17:55,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159196353] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:17:55,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:17:55,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:17:55,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034618578] [2021-12-28 04:17:55,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:17:55,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:17:55,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:17:55,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:17:55,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:17:55,730 INFO L87 Difference]: Start difference. First operand has 521 states, 368 states have (on average 1.3233695652173914) internal successors, (487), 387 states have internal predecessors, (487), 113 states have call successors, (113), 39 states have call predecessors, (113), 38 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:17:56,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:17:56,310 INFO L93 Difference]: Finished difference Result 1061 states and 1484 transitions. [2021-12-28 04:17:56,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 04:17:56,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 168 [2021-12-28 04:17:56,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:17:56,329 INFO L225 Difference]: With dead ends: 1061 [2021-12-28 04:17:56,330 INFO L226 Difference]: Without dead ends: 534 [2021-12-28 04:17:56,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:17:56,342 INFO L933 BasicCegarLoop]: 662 mSDtfsCounter, 479 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-28 04:17:56,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 976 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-28 04:17:56,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-12-28 04:17:56,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 510. [2021-12-28 04:17:56,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 363 states have (on average 1.3085399449035813) internal successors, (475), 376 states have internal predecessors, (475), 109 states have call successors, (109), 38 states have call predecessors, (109), 37 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2021-12-28 04:17:56,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 685 transitions. [2021-12-28 04:17:56,406 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 685 transitions. Word has length 168 [2021-12-28 04:17:56,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:17:56,407 INFO L470 AbstractCegarLoop]: Abstraction has 510 states and 685 transitions. [2021-12-28 04:17:56,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:17:56,407 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 685 transitions. [2021-12-28 04:17:56,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-28 04:17:56,411 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:17:56,411 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:17:56,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:17:56,412 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:17:56,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:17:56,412 INFO L85 PathProgramCache]: Analyzing trace with hash 2145863860, now seen corresponding path program 1 times [2021-12-28 04:17:56,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:17:56,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333863232] [2021-12-28 04:17:56,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:17:56,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:17:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:17:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:17:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:17:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:17:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:17:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:17:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:17:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:17:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:17:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:17:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:17:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:17:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:17:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:17:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:56,702 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-28 04:17:56,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:17:56,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333863232] [2021-12-28 04:17:56,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333863232] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:17:56,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:17:56,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:17:56,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806673762] [2021-12-28 04:17:56,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:17:56,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:17:56,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:17:56,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:17:56,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:17:56,705 INFO L87 Difference]: Start difference. First operand 510 states and 685 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-28 04:17:57,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:17:57,865 INFO L93 Difference]: Finished difference Result 1481 states and 1992 transitions. [2021-12-28 04:17:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:17:57,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 168 [2021-12-28 04:17:57,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:17:57,871 INFO L225 Difference]: With dead ends: 1481 [2021-12-28 04:17:57,871 INFO L226 Difference]: Without dead ends: 1007 [2021-12-28 04:17:57,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:17:57,873 INFO L933 BasicCegarLoop]: 724 mSDtfsCounter, 1136 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:17:57,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1196 Valid, 2014 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 04:17:57,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2021-12-28 04:17:57,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 957. [2021-12-28 04:17:57,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 688 states have (on average 1.3125) internal successors, (903), 707 states have internal predecessors, (903), 195 states have call successors, (195), 74 states have call predecessors, (195), 73 states have return successors, (187), 187 states have call predecessors, (187), 187 states have call successors, (187) [2021-12-28 04:17:57,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1285 transitions. [2021-12-28 04:17:57,937 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1285 transitions. Word has length 168 [2021-12-28 04:17:57,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:17:57,939 INFO L470 AbstractCegarLoop]: Abstraction has 957 states and 1285 transitions. [2021-12-28 04:17:57,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-28 04:17:57,939 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1285 transitions. [2021-12-28 04:17:57,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-28 04:17:57,947 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:17:57,948 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:17:57,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:17:57,948 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:17:57,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:17:57,948 INFO L85 PathProgramCache]: Analyzing trace with hash 86406559, now seen corresponding path program 1 times [2021-12-28 04:17:57,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:17:57,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017723258] [2021-12-28 04:17:57,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:17:57,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:17:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:17:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:17:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:17:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:17:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:17:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:17:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:17:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:17:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:17:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:17:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:17:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:17:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:17:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:17:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-28 04:17:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-28 04:17:58,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:17:58,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017723258] [2021-12-28 04:17:58,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017723258] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:17:58,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:17:58,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:17:58,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759104884] [2021-12-28 04:17:58,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:17:58,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:17:58,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:17:58,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:17:58,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:17:58,198 INFO L87 Difference]: Start difference. First operand 957 states and 1285 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 04:17:58,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:17:58,897 INFO L93 Difference]: Finished difference Result 2409 states and 3177 transitions. [2021-12-28 04:17:58,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:17:58,898 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 174 [2021-12-28 04:17:58,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:17:58,903 INFO L225 Difference]: With dead ends: 2409 [2021-12-28 04:17:58,904 INFO L226 Difference]: Without dead ends: 1488 [2021-12-28 04:17:58,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:17:58,906 INFO L933 BasicCegarLoop]: 686 mSDtfsCounter, 1070 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 568 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:17:58,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1104 Valid, 1323 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [568 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-28 04:17:58,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2021-12-28 04:17:58,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1410. [2021-12-28 04:17:58,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1014 states have (on average 1.2879684418145956) internal successors, (1306), 1045 states have internal predecessors, (1306), 264 states have call successors, (264), 128 states have call predecessors, (264), 131 states have return successors, (272), 252 states have call predecessors, (272), 256 states have call successors, (272) [2021-12-28 04:17:58,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1842 transitions. [2021-12-28 04:17:58,947 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1842 transitions. Word has length 174 [2021-12-28 04:17:58,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:17:58,948 INFO L470 AbstractCegarLoop]: Abstraction has 1410 states and 1842 transitions. [2021-12-28 04:17:58,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 04:17:58,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1842 transitions. [2021-12-28 04:17:58,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-28 04:17:58,949 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:17:58,949 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:17:58,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:17:58,950 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:17:58,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:17:58,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1150095834, now seen corresponding path program 1 times [2021-12-28 04:17:58,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:17:58,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096310658] [2021-12-28 04:17:58,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:17:58,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:17:58,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:17:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:59,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:17:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:17:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:17:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:17:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:17:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:17:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:17:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:17:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:17:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:17:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:17:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:17:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:17:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:59,142 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-28 04:17:59,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:17:59,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096310658] [2021-12-28 04:17:59,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096310658] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:17:59,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:17:59,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:17:59,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254950925] [2021-12-28 04:17:59,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:17:59,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:17:59,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:17:59,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:17:59,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:17:59,144 INFO L87 Difference]: Start difference. First operand 1410 states and 1842 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-28 04:18:00,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:00,225 INFO L93 Difference]: Finished difference Result 2856 states and 3733 transitions. [2021-12-28 04:18:00,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-28 04:18:00,226 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 173 [2021-12-28 04:18:00,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:00,232 INFO L225 Difference]: With dead ends: 2856 [2021-12-28 04:18:00,232 INFO L226 Difference]: Without dead ends: 1492 [2021-12-28 04:18:00,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-12-28 04:18:00,235 INFO L933 BasicCegarLoop]: 644 mSDtfsCounter, 374 mSDsluCounter, 2500 mSDsCounter, 0 mSdLazyCounter, 1544 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 1544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:00,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 3144 Invalid, 1807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 1544 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 04:18:00,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2021-12-28 04:18:00,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1413. [2021-12-28 04:18:00,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1017 states have (on average 1.2851524090462143) internal successors, (1307), 1048 states have internal predecessors, (1307), 264 states have call successors, (264), 128 states have call predecessors, (264), 131 states have return successors, (272), 252 states have call predecessors, (272), 256 states have call successors, (272) [2021-12-28 04:18:00,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1843 transitions. [2021-12-28 04:18:00,283 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1843 transitions. Word has length 173 [2021-12-28 04:18:00,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:00,283 INFO L470 AbstractCegarLoop]: Abstraction has 1413 states and 1843 transitions. [2021-12-28 04:18:00,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-28 04:18:00,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1843 transitions. [2021-12-28 04:18:00,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-28 04:18:00,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:00,285 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:18:00,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:18:00,285 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:00,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:00,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1207354136, now seen corresponding path program 1 times [2021-12-28 04:18:00,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:00,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010432661] [2021-12-28 04:18:00,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:00,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:00,478 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-28 04:18:00,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:00,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010432661] [2021-12-28 04:18:00,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010432661] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:00,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:00,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:18:00,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453239424] [2021-12-28 04:18:00,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:00,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:18:00,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:00,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:18:00,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:18:00,480 INFO L87 Difference]: Start difference. First operand 1413 states and 1843 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:18:00,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:00,881 INFO L93 Difference]: Finished difference Result 1467 states and 1914 transitions. [2021-12-28 04:18:00,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:18:00,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 173 [2021-12-28 04:18:00,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:00,887 INFO L225 Difference]: With dead ends: 1467 [2021-12-28 04:18:00,887 INFO L226 Difference]: Without dead ends: 1464 [2021-12-28 04:18:00,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:18:00,888 INFO L933 BasicCegarLoop]: 640 mSDtfsCounter, 1032 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:00,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1092 Valid, 944 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 04:18:00,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2021-12-28 04:18:00,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1412. [2021-12-28 04:18:00,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1017 states have (on average 1.2841691248770895) internal successors, (1306), 1047 states have internal predecessors, (1306), 263 states have call successors, (263), 128 states have call predecessors, (263), 131 states have return successors, (272), 252 states have call predecessors, (272), 256 states have call successors, (272) [2021-12-28 04:18:00,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 1841 transitions. [2021-12-28 04:18:00,927 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 1841 transitions. Word has length 173 [2021-12-28 04:18:00,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:00,928 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 1841 transitions. [2021-12-28 04:18:00,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:18:00,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 1841 transitions. [2021-12-28 04:18:00,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-28 04:18:00,929 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:00,930 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:18:00,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 04:18:00,930 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:00,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:00,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1226843762, now seen corresponding path program 1 times [2021-12-28 04:18:00,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:00,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508682857] [2021-12-28 04:18:00,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:00,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,148 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-28 04:18:01,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:01,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508682857] [2021-12-28 04:18:01,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508682857] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:01,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:01,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:18:01,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569683691] [2021-12-28 04:18:01,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:01,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:18:01,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:01,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:18:01,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:18:01,151 INFO L87 Difference]: Start difference. First operand 1412 states and 1841 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:18:01,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:01,554 INFO L93 Difference]: Finished difference Result 1466 states and 1912 transitions. [2021-12-28 04:18:01,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:18:01,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 174 [2021-12-28 04:18:01,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:01,560 INFO L225 Difference]: With dead ends: 1466 [2021-12-28 04:18:01,560 INFO L226 Difference]: Without dead ends: 1463 [2021-12-28 04:18:01,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:18:01,563 INFO L933 BasicCegarLoop]: 639 mSDtfsCounter, 1029 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:01,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1088 Valid, 942 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 04:18:01,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2021-12-28 04:18:01,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1411. [2021-12-28 04:18:01,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 1017 states have (on average 1.2831858407079646) internal successors, (1305), 1046 states have internal predecessors, (1305), 262 states have call successors, (262), 128 states have call predecessors, (262), 131 states have return successors, (272), 252 states have call predecessors, (272), 256 states have call successors, (272) [2021-12-28 04:18:01,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 1839 transitions. [2021-12-28 04:18:01,601 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 1839 transitions. Word has length 174 [2021-12-28 04:18:01,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:01,601 INFO L470 AbstractCegarLoop]: Abstraction has 1411 states and 1839 transitions. [2021-12-28 04:18:01,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:18:01,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 1839 transitions. [2021-12-28 04:18:01,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-28 04:18:01,603 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:01,603 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:18:01,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 04:18:01,603 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:01,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:01,604 INFO L85 PathProgramCache]: Analyzing trace with hash 622437595, now seen corresponding path program 1 times [2021-12-28 04:18:01,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:01,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611395061] [2021-12-28 04:18:01,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:01,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:01,836 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-28 04:18:01,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:01,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611395061] [2021-12-28 04:18:01,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611395061] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:01,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:01,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:18:01,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969838893] [2021-12-28 04:18:01,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:01,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:18:01,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:01,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:18:01,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:18:01,838 INFO L87 Difference]: Start difference. First operand 1411 states and 1839 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:18:02,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:02,416 INFO L93 Difference]: Finished difference Result 1465 states and 1910 transitions. [2021-12-28 04:18:02,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:18:02,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 175 [2021-12-28 04:18:02,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:02,422 INFO L225 Difference]: With dead ends: 1465 [2021-12-28 04:18:02,422 INFO L226 Difference]: Without dead ends: 1462 [2021-12-28 04:18:02,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:18:02,423 INFO L933 BasicCegarLoop]: 637 mSDtfsCounter, 863 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:02,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [922 Valid, 1484 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 04:18:02,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2021-12-28 04:18:02,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1410. [2021-12-28 04:18:02,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1017 states have (on average 1.2822025565388397) internal successors, (1304), 1045 states have internal predecessors, (1304), 261 states have call successors, (261), 128 states have call predecessors, (261), 131 states have return successors, (272), 252 states have call predecessors, (272), 256 states have call successors, (272) [2021-12-28 04:18:02,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1837 transitions. [2021-12-28 04:18:02,463 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1837 transitions. Word has length 175 [2021-12-28 04:18:02,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:02,463 INFO L470 AbstractCegarLoop]: Abstraction has 1410 states and 1837 transitions. [2021-12-28 04:18:02,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:18:02,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1837 transitions. [2021-12-28 04:18:02,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-28 04:18:02,465 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:02,465 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:18:02,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 04:18:02,465 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:02,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:02,466 INFO L85 PathProgramCache]: Analyzing trace with hash 841390464, now seen corresponding path program 1 times [2021-12-28 04:18:02,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:02,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939410725] [2021-12-28 04:18:02,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:02,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-28 04:18:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:02,637 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-28 04:18:02,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:02,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939410725] [2021-12-28 04:18:02,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939410725] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:02,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:02,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:18:02,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154079729] [2021-12-28 04:18:02,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:02,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:18:02,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:02,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:18:02,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:18:02,639 INFO L87 Difference]: Start difference. First operand 1410 states and 1837 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 04:18:03,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:03,505 INFO L93 Difference]: Finished difference Result 2647 states and 3425 transitions. [2021-12-28 04:18:03,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:18:03,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 178 [2021-12-28 04:18:03,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:03,511 INFO L225 Difference]: With dead ends: 2647 [2021-12-28 04:18:03,511 INFO L226 Difference]: Without dead ends: 1283 [2021-12-28 04:18:03,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:18:03,515 INFO L933 BasicCegarLoop]: 979 mSDtfsCounter, 783 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:03,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 2133 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 04:18:03,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2021-12-28 04:18:03,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1210. [2021-12-28 04:18:03,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 882 states have (on average 1.2834467120181405) internal successors, (1132), 902 states have internal predecessors, (1132), 208 states have call successors, (208), 115 states have call predecessors, (208), 119 states have return successors, (217), 203 states have call predecessors, (217), 203 states have call successors, (217) [2021-12-28 04:18:03,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1557 transitions. [2021-12-28 04:18:03,561 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1557 transitions. Word has length 178 [2021-12-28 04:18:03,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:03,562 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 1557 transitions. [2021-12-28 04:18:03,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 04:18:03,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1557 transitions. [2021-12-28 04:18:03,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-28 04:18:03,563 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:03,563 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:18:03,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 04:18:03,564 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:03,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:03,564 INFO L85 PathProgramCache]: Analyzing trace with hash 2115589681, now seen corresponding path program 1 times [2021-12-28 04:18:03,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:03,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292932483] [2021-12-28 04:18:03,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:03,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:03,744 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-28 04:18:03,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:03,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292932483] [2021-12-28 04:18:03,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292932483] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:03,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:03,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:18:03,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791351657] [2021-12-28 04:18:03,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:03,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:18:03,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:03,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:18:03,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:18:03,746 INFO L87 Difference]: Start difference. First operand 1210 states and 1557 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:18:04,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:04,616 INFO L93 Difference]: Finished difference Result 3323 states and 4348 transitions. [2021-12-28 04:18:04,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:18:04,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 176 [2021-12-28 04:18:04,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:04,624 INFO L225 Difference]: With dead ends: 3323 [2021-12-28 04:18:04,624 INFO L226 Difference]: Without dead ends: 2165 [2021-12-28 04:18:04,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:18:04,628 INFO L933 BasicCegarLoop]: 818 mSDtfsCounter, 998 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:04,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1047 Valid, 1819 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 04:18:04,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2021-12-28 04:18:04,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 2069. [2021-12-28 04:18:04,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 1539 states have (on average 1.3001949317738792) internal successors, (2001), 1575 states have internal predecessors, (2001), 341 states have call successors, (341), 190 states have call predecessors, (341), 188 states have return successors, (373), 323 states have call predecessors, (373), 333 states have call successors, (373) [2021-12-28 04:18:04,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2715 transitions. [2021-12-28 04:18:04,693 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2715 transitions. Word has length 176 [2021-12-28 04:18:04,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:04,693 INFO L470 AbstractCegarLoop]: Abstraction has 2069 states and 2715 transitions. [2021-12-28 04:18:04,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:18:04,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2715 transitions. [2021-12-28 04:18:04,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-12-28 04:18:04,696 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:04,696 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2021-12-28 04:18:04,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 04:18:04,696 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:04,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:04,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1659045681, now seen corresponding path program 1 times [2021-12-28 04:18:04,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:04,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795306509] [2021-12-28 04:18:04,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:04,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-28 04:18:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-28 04:18:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-28 04:18:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-28 04:18:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-28 04:18:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:04,956 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2021-12-28 04:18:04,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:04,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795306509] [2021-12-28 04:18:04,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795306509] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:04,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:04,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:18:04,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398717157] [2021-12-28 04:18:04,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:04,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:18:04,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:04,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:18:04,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:18:04,959 INFO L87 Difference]: Start difference. First operand 2069 states and 2715 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-28 04:18:06,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:06,350 INFO L93 Difference]: Finished difference Result 4985 states and 6554 transitions. [2021-12-28 04:18:06,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 04:18:06,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 230 [2021-12-28 04:18:06,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:06,361 INFO L225 Difference]: With dead ends: 4985 [2021-12-28 04:18:06,362 INFO L226 Difference]: Without dead ends: 2981 [2021-12-28 04:18:06,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-28 04:18:06,368 INFO L933 BasicCegarLoop]: 820 mSDtfsCounter, 1328 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 2432 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:06,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1390 Valid, 2432 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [600 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-28 04:18:06,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-12-28 04:18:06,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2818. [2021-12-28 04:18:06,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2118 states have (on average 1.3097261567516525) internal successors, (2774), 2160 states have internal predecessors, (2774), 443 states have call successors, (443), 257 states have call predecessors, (443), 256 states have return successors, (492), 425 states have call predecessors, (492), 435 states have call successors, (492) [2021-12-28 04:18:06,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 3709 transitions. [2021-12-28 04:18:06,480 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 3709 transitions. Word has length 230 [2021-12-28 04:18:06,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:06,480 INFO L470 AbstractCegarLoop]: Abstraction has 2818 states and 3709 transitions. [2021-12-28 04:18:06,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-28 04:18:06,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 3709 transitions. [2021-12-28 04:18:06,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-12-28 04:18:06,483 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:06,483 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2021-12-28 04:18:06,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 04:18:06,483 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:06,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:06,484 INFO L85 PathProgramCache]: Analyzing trace with hash 305930133, now seen corresponding path program 1 times [2021-12-28 04:18:06,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:06,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232450800] [2021-12-28 04:18:06,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:06,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-28 04:18:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:18:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-28 04:18:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-28 04:18:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-28 04:18:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-28 04:18:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-28 04:18:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-28 04:18:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:06,705 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-12-28 04:18:06,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:06,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232450800] [2021-12-28 04:18:06,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232450800] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:06,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:06,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:18:06,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260170886] [2021-12-28 04:18:06,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:06,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:18:06,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:06,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:18:06,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:18:06,707 INFO L87 Difference]: Start difference. First operand 2818 states and 3709 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-28 04:18:07,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:07,380 INFO L93 Difference]: Finished difference Result 5725 states and 7551 transitions. [2021-12-28 04:18:07,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 04:18:07,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 257 [2021-12-28 04:18:07,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:07,394 INFO L225 Difference]: With dead ends: 5725 [2021-12-28 04:18:07,394 INFO L226 Difference]: Without dead ends: 2972 [2021-12-28 04:18:07,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:18:07,399 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 482 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:07,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 1567 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-28 04:18:07,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2972 states. [2021-12-28 04:18:07,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2972 to 2818. [2021-12-28 04:18:07,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2118 states have (on average 1.2983947119924457) internal successors, (2750), 2160 states have internal predecessors, (2750), 443 states have call successors, (443), 257 states have call predecessors, (443), 256 states have return successors, (492), 425 states have call predecessors, (492), 435 states have call successors, (492) [2021-12-28 04:18:07,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 3685 transitions. [2021-12-28 04:18:07,490 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 3685 transitions. Word has length 257 [2021-12-28 04:18:07,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:07,491 INFO L470 AbstractCegarLoop]: Abstraction has 2818 states and 3685 transitions. [2021-12-28 04:18:07,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-28 04:18:07,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 3685 transitions. [2021-12-28 04:18:07,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-12-28 04:18:07,494 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:07,494 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 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] [2021-12-28 04:18:07,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 04:18:07,495 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:07,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:07,495 INFO L85 PathProgramCache]: Analyzing trace with hash -301822157, now seen corresponding path program 1 times [2021-12-28 04:18:07,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:07,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403450180] [2021-12-28 04:18:07,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:07,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-28 04:18:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:07,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:18:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-28 04:18:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-28 04:18:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-28 04:18:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-28 04:18:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-28 04:18:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:07,714 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2021-12-28 04:18:07,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:07,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403450180] [2021-12-28 04:18:07,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403450180] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:07,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:07,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:18:07,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836470389] [2021-12-28 04:18:07,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:07,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:18:07,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:07,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:18:07,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:18:07,717 INFO L87 Difference]: Start difference. First operand 2818 states and 3685 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-28 04:18:09,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:09,669 INFO L93 Difference]: Finished difference Result 6977 states and 9105 transitions. [2021-12-28 04:18:09,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 04:18:09,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 258 [2021-12-28 04:18:09,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:09,683 INFO L225 Difference]: With dead ends: 6977 [2021-12-28 04:18:09,683 INFO L226 Difference]: Without dead ends: 4224 [2021-12-28 04:18:09,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-12-28 04:18:09,688 INFO L933 BasicCegarLoop]: 1170 mSDtfsCounter, 1173 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 3938 SdHoareTripleChecker+Invalid, 2950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:09,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 3938 Invalid, 2950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2299 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-28 04:18:09,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4224 states. [2021-12-28 04:18:09,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4224 to 2826. [2021-12-28 04:18:09,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2826 states, 2126 states have (on average 1.297271872060207) internal successors, (2758), 2168 states have internal predecessors, (2758), 443 states have call successors, (443), 257 states have call predecessors, (443), 256 states have return successors, (492), 425 states have call predecessors, (492), 435 states have call successors, (492) [2021-12-28 04:18:09,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 3693 transitions. [2021-12-28 04:18:09,807 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 3693 transitions. Word has length 258 [2021-12-28 04:18:09,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:09,808 INFO L470 AbstractCegarLoop]: Abstraction has 2826 states and 3693 transitions. [2021-12-28 04:18:09,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-28 04:18:09,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 3693 transitions. [2021-12-28 04:18:09,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-12-28 04:18:09,810 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:09,810 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2021-12-28 04:18:09,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-28 04:18:09,810 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:09,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:09,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1028582416, now seen corresponding path program 1 times [2021-12-28 04:18:09,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:09,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544490404] [2021-12-28 04:18:09,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:09,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:09,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:09,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-28 04:18:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:10,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:10,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:10,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:18:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:10,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:10,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-28 04:18:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:10,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-28 04:18:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:10,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-28 04:18:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:10,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-28 04:18:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:10,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-28 04:18:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:10,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-28 04:18:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:10,042 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-12-28 04:18:10,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:10,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544490404] [2021-12-28 04:18:10,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544490404] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:10,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:10,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:18:10,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322609999] [2021-12-28 04:18:10,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:10,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:18:10,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:10,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:18:10,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:18:10,044 INFO L87 Difference]: Start difference. First operand 2826 states and 3693 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-28 04:18:11,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:11,292 INFO L93 Difference]: Finished difference Result 5735 states and 7484 transitions. [2021-12-28 04:18:11,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 04:18:11,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 259 [2021-12-28 04:18:11,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:11,301 INFO L225 Difference]: With dead ends: 5735 [2021-12-28 04:18:11,302 INFO L226 Difference]: Without dead ends: 2974 [2021-12-28 04:18:11,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-28 04:18:11,307 INFO L933 BasicCegarLoop]: 931 mSDtfsCounter, 910 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 2989 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:11,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [958 Valid, 2989 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 04:18:11,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2021-12-28 04:18:11,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 2777. [2021-12-28 04:18:11,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2777 states, 2096 states have (on average 1.2948473282442747) internal successors, (2714), 2135 states have internal predecessors, (2714), 427 states have call successors, (427), 247 states have call predecessors, (427), 253 states have return successors, (442), 419 states have call predecessors, (442), 410 states have call successors, (442) [2021-12-28 04:18:11,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2777 states to 2777 states and 3583 transitions. [2021-12-28 04:18:11,399 INFO L78 Accepts]: Start accepts. Automaton has 2777 states and 3583 transitions. Word has length 259 [2021-12-28 04:18:11,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:11,399 INFO L470 AbstractCegarLoop]: Abstraction has 2777 states and 3583 transitions. [2021-12-28 04:18:11,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-28 04:18:11,400 INFO L276 IsEmpty]: Start isEmpty. Operand 2777 states and 3583 transitions. [2021-12-28 04:18:11,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-12-28 04:18:11,402 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:11,403 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2021-12-28 04:18:11,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-28 04:18:11,403 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:11,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:11,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1986521202, now seen corresponding path program 1 times [2021-12-28 04:18:11,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:11,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787887263] [2021-12-28 04:18:11,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:11,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-28 04:18:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:18:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-28 04:18:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-28 04:18:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-28 04:18:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-28 04:18:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-28 04:18:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-28 04:18:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,668 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-12-28 04:18:11,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:11,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787887263] [2021-12-28 04:18:11,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787887263] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:11,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:11,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:18:11,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578653420] [2021-12-28 04:18:11,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:11,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:18:11,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:11,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:18:11,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:18:11,671 INFO L87 Difference]: Start difference. First operand 2777 states and 3583 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-28 04:18:13,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:13,041 INFO L93 Difference]: Finished difference Result 5712 states and 8166 transitions. [2021-12-28 04:18:13,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 04:18:13,041 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 259 [2021-12-28 04:18:13,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:13,070 INFO L225 Difference]: With dead ends: 5712 [2021-12-28 04:18:13,070 INFO L226 Difference]: Without dead ends: 5695 [2021-12-28 04:18:13,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-28 04:18:13,073 INFO L933 BasicCegarLoop]: 1261 mSDtfsCounter, 1784 mSDsluCounter, 3342 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 734 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 4603 SdHoareTripleChecker+Invalid, 2353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 734 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:13,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1842 Valid, 4603 Invalid, 2353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [734 Valid, 1619 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-28 04:18:13,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5695 states. [2021-12-28 04:18:13,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5695 to 2769. [2021-12-28 04:18:13,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2092 states have (on average 1.2944550669216062) internal successors, (2708), 2129 states have internal predecessors, (2708), 424 states have call successors, (424), 246 states have call predecessors, (424), 252 states have return successors, (440), 418 states have call predecessors, (440), 408 states have call successors, (440) [2021-12-28 04:18:13,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 3572 transitions. [2021-12-28 04:18:13,217 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 3572 transitions. Word has length 259 [2021-12-28 04:18:13,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:13,217 INFO L470 AbstractCegarLoop]: Abstraction has 2769 states and 3572 transitions. [2021-12-28 04:18:13,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-28 04:18:13,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 3572 transitions. [2021-12-28 04:18:13,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-12-28 04:18:13,220 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:13,220 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:18:13,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 04:18:13,220 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:13,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:13,221 INFO L85 PathProgramCache]: Analyzing trace with hash -73076388, now seen corresponding path program 1 times [2021-12-28 04:18:13,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:13,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532599942] [2021-12-28 04:18:13,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:13,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-28 04:18:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:18:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-28 04:18:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-28 04:18:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-28 04:18:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-28 04:18:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-28 04:18:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-28 04:18:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-28 04:18:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-28 04:18:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-28 04:18:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-28 04:18:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:13,444 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2021-12-28 04:18:13,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:13,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532599942] [2021-12-28 04:18:13,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532599942] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:13,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:13,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:18:13,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184778978] [2021-12-28 04:18:13,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:13,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:18:13,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:13,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:18:13,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:18:13,446 INFO L87 Difference]: Start difference. First operand 2769 states and 3572 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-28 04:18:14,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:14,804 INFO L93 Difference]: Finished difference Result 7988 states and 11013 transitions. [2021-12-28 04:18:14,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 04:18:14,805 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 292 [2021-12-28 04:18:14,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:14,817 INFO L225 Difference]: With dead ends: 7988 [2021-12-28 04:18:14,817 INFO L226 Difference]: Without dead ends: 5284 [2021-12-28 04:18:14,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-12-28 04:18:14,823 INFO L933 BasicCegarLoop]: 834 mSDtfsCounter, 1781 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 989 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1792 SdHoareTripleChecker+Valid, 2812 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 989 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:14,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1792 Valid, 2812 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [989 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 04:18:14,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5284 states. [2021-12-28 04:18:14,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5284 to 2762. [2021-12-28 04:18:14,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2089 states have (on average 1.2939205361416946) internal successors, (2703), 2124 states have internal predecessors, (2703), 422 states have call successors, (422), 244 states have call predecessors, (422), 250 states have return successors, (438), 416 states have call predecessors, (438), 406 states have call successors, (438) [2021-12-28 04:18:14,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3563 transitions. [2021-12-28 04:18:14,942 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3563 transitions. Word has length 292 [2021-12-28 04:18:14,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:14,943 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3563 transitions. [2021-12-28 04:18:14,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-28 04:18:14,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3563 transitions. [2021-12-28 04:18:14,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-12-28 04:18:14,950 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:14,950 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:18:14,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-28 04:18:14,951 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:14,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:14,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1571422651, now seen corresponding path program 1 times [2021-12-28 04:18:14,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:14,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697961884] [2021-12-28 04:18:14,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:14,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-28 04:18:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:18:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-28 04:18:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-28 04:18:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-28 04:18:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-28 04:18:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-28 04:18:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-28 04:18:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-28 04:18:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-28 04:18:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-28 04:18:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-28 04:18:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 04:18:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-12-28 04:18:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-28 04:18:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:15,233 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 653 trivial. 0 not checked. [2021-12-28 04:18:15,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:15,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697961884] [2021-12-28 04:18:15,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697961884] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:15,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:15,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-28 04:18:15,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282690211] [2021-12-28 04:18:15,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:15,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-28 04:18:15,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:15,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-28 04:18:15,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-28 04:18:15,236 INFO L87 Difference]: Start difference. First operand 2762 states and 3563 transitions. Second operand has 10 states, 10 states have (on average 13.8) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-28 04:18:17,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:17,449 INFO L93 Difference]: Finished difference Result 7972 states and 10577 transitions. [2021-12-28 04:18:17,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 04:18:17,450 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 347 [2021-12-28 04:18:17,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:17,464 INFO L225 Difference]: With dead ends: 7972 [2021-12-28 04:18:17,464 INFO L226 Difference]: Without dead ends: 5275 [2021-12-28 04:18:17,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-12-28 04:18:17,472 INFO L933 BasicCegarLoop]: 743 mSDtfsCounter, 1951 mSDsluCounter, 2631 mSDsCounter, 0 mSdLazyCounter, 2534 mSolverCounterSat, 945 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2045 SdHoareTripleChecker+Valid, 3374 SdHoareTripleChecker+Invalid, 3479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 945 IncrementalHoareTripleChecker+Valid, 2534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:17,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2045 Valid, 3374 Invalid, 3479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [945 Valid, 2534 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-28 04:18:17,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5275 states. [2021-12-28 04:18:17,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5275 to 2764. [2021-12-28 04:18:17,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2764 states, 2091 states have (on average 1.2936394069823052) internal successors, (2705), 2126 states have internal predecessors, (2705), 422 states have call successors, (422), 244 states have call predecessors, (422), 250 states have return successors, (438), 416 states have call predecessors, (438), 406 states have call successors, (438) [2021-12-28 04:18:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 3565 transitions. [2021-12-28 04:18:17,605 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 3565 transitions. Word has length 347 [2021-12-28 04:18:17,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:17,606 INFO L470 AbstractCegarLoop]: Abstraction has 2764 states and 3565 transitions. [2021-12-28 04:18:17,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-28 04:18:17,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 3565 transitions. [2021-12-28 04:18:17,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-12-28 04:18:17,609 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:17,610 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:18:17,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-28 04:18:17,610 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:17,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:17,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1177055865, now seen corresponding path program 1 times [2021-12-28 04:18:17,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:17,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747573872] [2021-12-28 04:18:17,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:17,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-28 04:18:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:18:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-28 04:18:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-28 04:18:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-28 04:18:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-28 04:18:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-28 04:18:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-28 04:18:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-28 04:18:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-28 04:18:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-28 04:18:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-28 04:18:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 04:18:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-12-28 04:18:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-28 04:18:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:17,952 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2021-12-28 04:18:17,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:17,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747573872] [2021-12-28 04:18:17,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747573872] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:17,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:17,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 04:18:17,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75351654] [2021-12-28 04:18:17,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:17,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 04:18:17,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:17,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 04:18:17,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-28 04:18:17,955 INFO L87 Difference]: Start difference. First operand 2764 states and 3565 transitions. Second operand has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 5 states have internal predecessors, (136), 2 states have call successors, (37), 8 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2021-12-28 04:18:19,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:19,190 INFO L93 Difference]: Finished difference Result 2948 states and 3791 transitions. [2021-12-28 04:18:19,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-28 04:18:19,190 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 5 states have internal predecessors, (136), 2 states have call successors, (37), 8 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 347 [2021-12-28 04:18:19,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:19,196 INFO L225 Difference]: With dead ends: 2948 [2021-12-28 04:18:19,196 INFO L226 Difference]: Without dead ends: 2898 [2021-12-28 04:18:19,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2021-12-28 04:18:19,197 INFO L933 BasicCegarLoop]: 622 mSDtfsCounter, 804 mSDsluCounter, 2256 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 2878 SdHoareTripleChecker+Invalid, 2453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:19,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 2878 Invalid, 2453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 04:18:19,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2898 states. [2021-12-28 04:18:19,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2898 to 2728. [2021-12-28 04:18:19,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2728 states, 2059 states have (on average 1.2875182127246236) internal successors, (2651), 2093 states have internal predecessors, (2651), 418 states have call successors, (418), 244 states have call predecessors, (418), 250 states have return successors, (435), 413 states have call predecessors, (435), 403 states have call successors, (435) [2021-12-28 04:18:19,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2728 states to 2728 states and 3504 transitions. [2021-12-28 04:18:19,344 INFO L78 Accepts]: Start accepts. Automaton has 2728 states and 3504 transitions. Word has length 347 [2021-12-28 04:18:19,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:19,344 INFO L470 AbstractCegarLoop]: Abstraction has 2728 states and 3504 transitions. [2021-12-28 04:18:19,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 5 states have internal predecessors, (136), 2 states have call successors, (37), 8 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2021-12-28 04:18:19,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2728 states and 3504 transitions. [2021-12-28 04:18:19,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-12-28 04:18:19,348 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:19,348 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:18:19,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-28 04:18:19,349 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:19,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:19,349 INFO L85 PathProgramCache]: Analyzing trace with hash -845885553, now seen corresponding path program 1 times [2021-12-28 04:18:19,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:19,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994366458] [2021-12-28 04:18:19,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:19,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:19,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-28 04:18:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:18:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-28 04:18:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-28 04:18:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-28 04:18:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-28 04:18:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-28 04:18:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-28 04:18:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-28 04:18:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-28 04:18:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-28 04:18:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-28 04:18:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 04:18:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-28 04:18:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-12-28 04:18:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:19,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:19,639 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2021-12-28 04:18:19,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:19,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994366458] [2021-12-28 04:18:19,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994366458] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:19,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:19,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 04:18:19,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958133260] [2021-12-28 04:18:19,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:19,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 04:18:19,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:19,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 04:18:19,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-28 04:18:19,641 INFO L87 Difference]: Start difference. First operand 2728 states and 3504 transitions. Second operand has 12 states, 12 states have (on average 12.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (36), 8 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2021-12-28 04:18:21,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:21,660 INFO L93 Difference]: Finished difference Result 5077 states and 7121 transitions. [2021-12-28 04:18:21,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-28 04:18:21,661 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (36), 8 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 354 [2021-12-28 04:18:21,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:21,671 INFO L225 Difference]: With dead ends: 5077 [2021-12-28 04:18:21,671 INFO L226 Difference]: Without dead ends: 4838 [2021-12-28 04:18:21,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2021-12-28 04:18:21,673 INFO L933 BasicCegarLoop]: 993 mSDtfsCounter, 1330 mSDsluCounter, 4670 mSDsCounter, 0 mSdLazyCounter, 2967 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 5663 SdHoareTripleChecker+Invalid, 3553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 2967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:21,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1390 Valid, 5663 Invalid, 3553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 2967 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-28 04:18:21,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4838 states. [2021-12-28 04:18:21,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4838 to 2566. [2021-12-28 04:18:21,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 1944 states have (on average 1.287551440329218) internal successors, (2503), 1972 states have internal predecessors, (2503), 382 states have call successors, (382), 232 states have call predecessors, (382), 239 states have return successors, (401), 381 states have call predecessors, (401), 369 states have call successors, (401) [2021-12-28 04:18:21,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3286 transitions. [2021-12-28 04:18:21,803 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3286 transitions. Word has length 354 [2021-12-28 04:18:21,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:21,804 INFO L470 AbstractCegarLoop]: Abstraction has 2566 states and 3286 transitions. [2021-12-28 04:18:21,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (36), 8 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2021-12-28 04:18:21,804 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3286 transitions. [2021-12-28 04:18:21,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-12-28 04:18:21,807 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:21,808 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:18:21,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-28 04:18:21,808 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:21,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:21,808 INFO L85 PathProgramCache]: Analyzing trace with hash -576915514, now seen corresponding path program 1 times [2021-12-28 04:18:21,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:21,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268501572] [2021-12-28 04:18:21,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:21,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:21,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-28 04:18:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:18:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-28 04:18:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-28 04:18:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-28 04:18:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-28 04:18:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-28 04:18:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-28 04:18:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-28 04:18:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-28 04:18:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-28 04:18:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-28 04:18:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 04:18:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-28 04:18:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-12-28 04:18:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:22,173 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2021-12-28 04:18:22,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:22,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268501572] [2021-12-28 04:18:22,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268501572] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:22,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:22,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 04:18:22,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939457210] [2021-12-28 04:18:22,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:22,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 04:18:22,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:22,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 04:18:22,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-28 04:18:22,175 INFO L87 Difference]: Start difference. First operand 2566 states and 3286 transitions. Second operand has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (39), 8 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-28 04:18:23,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:23,451 INFO L93 Difference]: Finished difference Result 5241 states and 6735 transitions. [2021-12-28 04:18:23,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-28 04:18:23,452 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (39), 8 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 356 [2021-12-28 04:18:23,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:23,458 INFO L225 Difference]: With dead ends: 5241 [2021-12-28 04:18:23,458 INFO L226 Difference]: Without dead ends: 2740 [2021-12-28 04:18:23,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-12-28 04:18:23,463 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 727 mSDsluCounter, 2500 mSDsCounter, 0 mSdLazyCounter, 1978 mSolverCounterSat, 540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 3127 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 540 IncrementalHoareTripleChecker+Valid, 1978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:23,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [738 Valid, 3127 Invalid, 2518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [540 Valid, 1978 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 04:18:23,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2021-12-28 04:18:23,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2584. [2021-12-28 04:18:23,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 1962 states have (on average 1.289500509683996) internal successors, (2530), 1993 states have internal predecessors, (2530), 385 states have call successors, (385), 232 states have call predecessors, (385), 236 states have return successors, (398), 378 states have call predecessors, (398), 372 states have call successors, (398) [2021-12-28 04:18:23,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 3313 transitions. [2021-12-28 04:18:23,598 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 3313 transitions. Word has length 356 [2021-12-28 04:18:23,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:23,598 INFO L470 AbstractCegarLoop]: Abstraction has 2584 states and 3313 transitions. [2021-12-28 04:18:23,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (39), 8 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-28 04:18:23,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 3313 transitions. [2021-12-28 04:18:23,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-12-28 04:18:23,603 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:23,603 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:18:23,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-28 04:18:23,603 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:23,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:23,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1078465444, now seen corresponding path program 1 times [2021-12-28 04:18:23,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:23,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513380330] [2021-12-28 04:18:23,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:23,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:18:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:18:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:18:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:18:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:18:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:18:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:18:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:18:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:18:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:18:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:18:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:18:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:18:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-28 04:18:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:18:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-28 04:18:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-28 04:18:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-28 04:18:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-28 04:18:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-28 04:18:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-28 04:18:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-28 04:18:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-28 04:18:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-28 04:18:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-28 04:18:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 04:18:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-28 04:18:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-12-28 04:18:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,904 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2021-12-28 04:18:23,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:23,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513380330] [2021-12-28 04:18:23,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513380330] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:23,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:23,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 04:18:23,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577881868] [2021-12-28 04:18:23,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:23,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 04:18:23,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:23,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 04:18:23,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-28 04:18:23,906 INFO L87 Difference]: Start difference. First operand 2584 states and 3313 transitions. Second operand has 12 states, 12 states have (on average 12.75) internal successors, (153), 5 states have internal predecessors, (153), 2 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2021-12-28 04:18:26,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:26,171 INFO L93 Difference]: Finished difference Result 3900 states and 5302 transitions. [2021-12-28 04:18:26,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 04:18:26,172 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.75) internal successors, (153), 5 states have internal predecessors, (153), 2 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 362 [2021-12-28 04:18:26,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:26,172 INFO L225 Difference]: With dead ends: 3900 [2021-12-28 04:18:26,172 INFO L226 Difference]: Without dead ends: 0 [2021-12-28 04:18:26,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2021-12-28 04:18:26,179 INFO L933 BasicCegarLoop]: 1218 mSDtfsCounter, 976 mSDsluCounter, 6573 mSDsCounter, 0 mSdLazyCounter, 3363 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 7791 SdHoareTripleChecker+Invalid, 3844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 3363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:26,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1036 Valid, 7791 Invalid, 3844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 3363 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-28 04:18:26,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-28 04:18:26,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-28 04:18:26,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 04:18:26,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-28 04:18:26,188 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 362 [2021-12-28 04:18:26,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:26,188 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 04:18:26,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.75) internal successors, (153), 5 states have internal predecessors, (153), 2 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2021-12-28 04:18:26,189 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-28 04:18:26,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-28 04:18:26,191 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-28 04:18:26,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-28 04:18:26,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.