./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--md--dm-raid.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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--md--dm-raid.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 62515c851d4d8c80398352da8857a26e67ae776a292d33d62b0afdc92addb3ad --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 01:19:58,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:19:58,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:19:58,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:19:58,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:19:58,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:19:59,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:19:59,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:19:59,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:19:59,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:19:59,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:19:59,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:19:59,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:19:59,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:19:59,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:19:59,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:19:59,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:19:59,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:19:59,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:19:59,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:19:59,036 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:19:59,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:19:59,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:19:59,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:19:59,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:19:59,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:19:59,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:19:59,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:19:59,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:19:59,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:19:59,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:19:59,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:19:59,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:19:59,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:19:59,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:19:59,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:19:59,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:19:59,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:19:59,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:19:59,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:19:59,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:19:59,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:19:59,057 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 01:19:59,092 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:19:59,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:19:59,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:19:59,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:19:59,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:19:59,094 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:19:59,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:19:59,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:19:59,095 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:19:59,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:19:59,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 01:19:59,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:19:59,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:19:59,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:19:59,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:19:59,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:19:59,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:19:59,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:19:59,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:19:59,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:19:59,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:19:59,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:19:59,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:19:59,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:19:59,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:19:59,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 01:19:59,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 01:19:59,100 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:19:59,100 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:19:59,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:19:59,101 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62515c851d4d8c80398352da8857a26e67ae776a292d33d62b0afdc92addb3ad [2022-07-14 01:19:59,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:19:59,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:19:59,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:19:59,353 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:19:59,353 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:19:59,355 INFO L432 ainManager$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--md--dm-raid.ko-entry_point.cil.out.i [2022-07-14 01:19:59,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f36981935/e1e58d47933946799953c47f4eb70e12/FLAG66d8cf4a6 [2022-07-14 01:20:00,236 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:20:00,237 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--md--dm-raid.ko-entry_point.cil.out.i [2022-07-14 01:20:00,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f36981935/e1e58d47933946799953c47f4eb70e12/FLAG66d8cf4a6 [2022-07-14 01:20:00,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f36981935/e1e58d47933946799953c47f4eb70e12 [2022-07-14 01:20:00,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:20:00,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:20:00,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:20:00,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:20:00,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:20:00,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:20:00" (1/1) ... [2022-07-14 01:20:00,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e994cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:20:00, skipping insertion in model container [2022-07-14 01:20:00,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:20:00" (1/1) ... [2022-07-14 01:20:00,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:20:00,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:20:02,638 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--md--dm-raid.ko-entry_point.cil.out.i[217361,217374] [2022-07-14 01:20:02,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:20:02,871 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:20:03,224 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--md--dm-raid.ko-entry_point.cil.out.i[217361,217374] [2022-07-14 01:20:03,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:20:03,308 INFO L208 MainTranslator]: Completed translation [2022-07-14 01:20:03,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:20:03 WrapperNode [2022-07-14 01:20:03,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 01:20:03,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 01:20:03,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 01:20:03,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 01:20:03,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:20:03" (1/1) ... [2022-07-14 01:20:03,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:20:03" (1/1) ... [2022-07-14 01:20:03,559 INFO L137 Inliner]: procedures = 221, calls = 1591, calls flagged for inlining = 84, calls inlined = 76, statements flattened = 4452 [2022-07-14 01:20:03,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 01:20:03,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 01:20:03,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 01:20:03,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 01:20:03,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:20:03" (1/1) ... [2022-07-14 01:20:03,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:20:03" (1/1) ... [2022-07-14 01:20:03,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:20:03" (1/1) ... [2022-07-14 01:20:03,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:20:03" (1/1) ... [2022-07-14 01:20:03,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:20:03" (1/1) ... [2022-07-14 01:20:03,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:20:03" (1/1) ... [2022-07-14 01:20:03,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:20:03" (1/1) ... [2022-07-14 01:20:03,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 01:20:03,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 01:20:03,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 01:20:03,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 01:20:03,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:20:03" (1/1) ... [2022-07-14 01:20:03,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:20:03,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:20:03,841 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) [2022-07-14 01:20:03,889 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 [2022-07-14 01:20:03,915 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2022-07-14 01:20:03,916 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2022-07-14 01:20:03,916 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2022-07-14 01:20:03,916 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2022-07-14 01:20:03,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 01:20:03,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 01:20:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 01:20:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 01:20:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-07-14 01:20:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-07-14 01:20:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_format [2022-07-14 01:20:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_format [2022-07-14 01:20:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 01:20:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 01:20:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure raid_io_hints [2022-07-14 01:20:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_io_hints [2022-07-14 01:20:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure raid_message [2022-07-14 01:20:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_message [2022-07-14 01:20:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 01:20:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 01:20:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-14 01:20:03,919 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-14 01:20:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_copies [2022-07-14 01:20:03,919 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_copies [2022-07-14 01:20:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 01:20:03,919 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 01:20:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 01:20:03,919 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 01:20:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure context_free [2022-07-14 01:20:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure context_free [2022-07-14 01:20:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-14 01:20:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-14 01:20:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-14 01:20:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-14 01:20:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure super_validate [2022-07-14 01:20:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure super_validate [2022-07-14 01:20:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure do_table_event [2022-07-14 01:20:03,920 INFO L138 BoogieDeclarations]: Found implementation of procedure do_table_event [2022-07-14 01:20:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 01:20:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 01:20:03,921 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 01:20:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 01:20:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure sync_page_io [2022-07-14 01:20:03,921 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_page_io [2022-07-14 01:20:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 01:20:03,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 01:20:03,922 INFO L130 BoogieDeclarations]: Found specification of procedure to_sector [2022-07-14 01:20:03,922 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sector [2022-07-14 01:20:03,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 01:20:03,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 01:20:03,922 INFO L130 BoogieDeclarations]: Found specification of procedure raid_iterate_devices [2022-07-14 01:20:03,922 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_iterate_devices [2022-07-14 01:20:03,923 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2022-07-14 01:20:03,923 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2022-07-14 01:20:03,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2022-07-14 01:20:03,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2022-07-14 01:20:03,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 01:20:03,923 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2022-07-14 01:20:03,923 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2022-07-14 01:20:03,924 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 01:20:03,924 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 01:20:03,924 INFO L130 BoogieDeclarations]: Found specification of procedure super_sync [2022-07-14 01:20:03,924 INFO L138 BoogieDeclarations]: Found implementation of procedure super_sync [2022-07-14 01:20:03,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 01:20:03,924 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2022-07-14 01:20:03,924 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2022-07-14 01:20:03,925 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2022-07-14 01:20:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2022-07-14 01:20:03,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 01:20:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 01:20:03,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 01:20:03,925 INFO L130 BoogieDeclarations]: Found specification of procedure raid_merge [2022-07-14 01:20:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_merge [2022-07-14 01:20:03,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 01:20:03,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 01:20:03,926 INFO L130 BoogieDeclarations]: Found specification of procedure raid_map [2022-07-14 01:20:03,926 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_map [2022-07-14 01:20:03,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 01:20:03,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 01:20:03,926 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2022-07-14 01:20:03,927 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2022-07-14 01:20:03,927 INFO L130 BoogieDeclarations]: Found specification of procedure md_stop [2022-07-14 01:20:03,927 INFO L138 BoogieDeclarations]: Found implementation of procedure md_stop [2022-07-14 01:20:03,927 INFO L130 BoogieDeclarations]: Found specification of procedure raid_status [2022-07-14 01:20:03,927 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_status [2022-07-14 01:20:03,927 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-07-14 01:20:03,928 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-07-14 01:20:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-14 01:20:03,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-14 01:20:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 01:20:03,928 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 01:20:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 01:20:03,928 INFO L130 BoogieDeclarations]: Found specification of procedure raid_dtr [2022-07-14 01:20:03,929 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_dtr [2022-07-14 01:20:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2022-07-14 01:20:03,929 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2022-07-14 01:20:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 01:20:03,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 01:20:03,929 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 01:20:03,929 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 01:20:04,444 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 01:20:04,446 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 01:20:04,808 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 01:20:07,489 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 01:20:07,503 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 01:20:07,504 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 01:20:07,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:20:07 BoogieIcfgContainer [2022-07-14 01:20:07,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 01:20:07,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 01:20:07,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 01:20:07,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 01:20:07,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:20:00" (1/3) ... [2022-07-14 01:20:07,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f1ed36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:20:07, skipping insertion in model container [2022-07-14 01:20:07,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:20:03" (2/3) ... [2022-07-14 01:20:07,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f1ed36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:20:07, skipping insertion in model container [2022-07-14 01:20:07,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:20:07" (3/3) ... [2022-07-14 01:20:07,517 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2022-07-14 01:20:07,532 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 01:20:07,532 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 01:20:07,607 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 01:20:07,613 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6a41af00, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@48430659 [2022-07-14 01:20:07,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 01:20:07,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 1151 states, 890 states have (on average 1.451685393258427) internal successors, (1292), 911 states have internal predecessors, (1292), 216 states have call successors, (216), 44 states have call predecessors, (216), 43 states have return successors, (212), 208 states have call predecessors, (212), 212 states have call successors, (212) [2022-07-14 01:20:07,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-14 01:20:07,637 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:20:07,638 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:20:07,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:20:07,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:20:07,644 INFO L85 PathProgramCache]: Analyzing trace with hash 660622254, now seen corresponding path program 1 times [2022-07-14 01:20:07,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:20:07,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700371891] [2022-07-14 01:20:07,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:20:07,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:20:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:20:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:20:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:20:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:20:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:20:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:20:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:20:08,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:20:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:20:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:20:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:20:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:20:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:08,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:20:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:20:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:20:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:08,577 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-14 01:20:08,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:20:08,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700371891] [2022-07-14 01:20:08,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700371891] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:20:08,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:20:08,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 01:20:08,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892519664] [2022-07-14 01:20:08,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:20:08,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 01:20:08,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:20:08,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 01:20:08,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 01:20:08,620 INFO L87 Difference]: Start difference. First operand has 1151 states, 890 states have (on average 1.451685393258427) internal successors, (1292), 911 states have internal predecessors, (1292), 216 states have call successors, (216), 44 states have call predecessors, (216), 43 states have return successors, (212), 208 states have call predecessors, (212), 212 states have call successors, (212) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:20:11,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:20:11,337 INFO L93 Difference]: Finished difference Result 2324 states and 3500 transitions. [2022-07-14 01:20:11,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 01:20:11,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 221 [2022-07-14 01:20:11,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:20:11,378 INFO L225 Difference]: With dead ends: 2324 [2022-07-14 01:20:11,378 INFO L226 Difference]: Without dead ends: 1166 [2022-07-14 01:20:11,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:20:11,394 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 1343 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 819 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 2253 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 819 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-14 01:20:11,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 2253 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [819 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-14 01:20:11,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2022-07-14 01:20:11,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1139. [2022-07-14 01:20:11,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 884 states have (on average 1.4457013574660633) internal successors, (1278), 899 states have internal predecessors, (1278), 212 states have call successors, (212), 43 states have call predecessors, (212), 42 states have return successors, (207), 203 states have call predecessors, (207), 207 states have call successors, (207) [2022-07-14 01:20:11,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1697 transitions. [2022-07-14 01:20:11,548 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1697 transitions. Word has length 221 [2022-07-14 01:20:11,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:20:11,549 INFO L495 AbstractCegarLoop]: Abstraction has 1139 states and 1697 transitions. [2022-07-14 01:20:11,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:20:11,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1697 transitions. [2022-07-14 01:20:11,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-14 01:20:11,557 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:20:11,557 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:20:11,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 01:20:11,558 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:20:11,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:20:11,558 INFO L85 PathProgramCache]: Analyzing trace with hash 859733406, now seen corresponding path program 1 times [2022-07-14 01:20:11,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:20:11,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293080395] [2022-07-14 01:20:11,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:20:11,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:20:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:20:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:20:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:20:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:20:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:20:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:20:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:20:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:20:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:11,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:20:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:20:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:20:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:20:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:20:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:20:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:20:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:12,129 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-14 01:20:12,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:20:12,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293080395] [2022-07-14 01:20:12,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293080395] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:20:12,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:20:12,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:20:12,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142366451] [2022-07-14 01:20:12,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:20:12,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:20:12,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:20:12,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:20:12,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:20:12,134 INFO L87 Difference]: Start difference. First operand 1139 states and 1697 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-14 01:20:14,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:20:15,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:20:19,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:20:19,607 INFO L93 Difference]: Finished difference Result 3363 states and 5041 transitions. [2022-07-14 01:20:19,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:20:19,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 221 [2022-07-14 01:20:19,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:20:19,624 INFO L225 Difference]: With dead ends: 3363 [2022-07-14 01:20:19,625 INFO L226 Difference]: Without dead ends: 2263 [2022-07-14 01:20:19,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:20:19,633 INFO L413 NwaCegarLoop]: 1700 mSDtfsCounter, 4040 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 1659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4169 SdHoareTripleChecker+Valid, 3352 SdHoareTripleChecker+Invalid, 3082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1659 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:20:19,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4169 Valid, 3352 Invalid, 3082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1659 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-07-14 01:20:19,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2022-07-14 01:20:19,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 2209. [2022-07-14 01:20:19,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 1727 states have (on average 1.4522292993630572) internal successors, (2508), 1753 states have internal predecessors, (2508), 400 states have call successors, (400), 82 states have call predecessors, (400), 81 states have return successors, (395), 387 states have call predecessors, (395), 395 states have call successors, (395) [2022-07-14 01:20:19,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3303 transitions. [2022-07-14 01:20:19,761 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3303 transitions. Word has length 221 [2022-07-14 01:20:19,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:20:19,765 INFO L495 AbstractCegarLoop]: Abstraction has 2209 states and 3303 transitions. [2022-07-14 01:20:19,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-14 01:20:19,766 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3303 transitions. [2022-07-14 01:20:19,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-07-14 01:20:19,769 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:20:19,769 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:20:19,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 01:20:19,769 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:20:19,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:20:19,770 INFO L85 PathProgramCache]: Analyzing trace with hash 2140903287, now seen corresponding path program 1 times [2022-07-14 01:20:19,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:20:19,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017838019] [2022-07-14 01:20:19,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:20:19,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:20:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:20:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:20:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:20:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:20:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:20:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:20:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:20:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:20:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:20:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:20:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:20:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:20:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:20:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:20:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:20:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:20,335 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-14 01:20:20,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:20:20,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017838019] [2022-07-14 01:20:20,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017838019] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:20:20,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:20:20,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:20:20,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65316213] [2022-07-14 01:20:20,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:20:20,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:20:20,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:20:20,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:20:20,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:20:20,341 INFO L87 Difference]: Start difference. First operand 2209 states and 3303 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, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:20:22,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:20:23,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:20:23,372 INFO L93 Difference]: Finished difference Result 2262 states and 3394 transitions. [2022-07-14 01:20:23,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 01:20:23,373 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, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 224 [2022-07-14 01:20:23,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:20:23,387 INFO L225 Difference]: With dead ends: 2262 [2022-07-14 01:20:23,387 INFO L226 Difference]: Without dead ends: 2259 [2022-07-14 01:20:23,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:20:23,390 INFO L413 NwaCegarLoop]: 1554 mSDtfsCounter, 2770 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 919 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2897 SdHoareTripleChecker+Valid, 2210 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 919 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-14 01:20:23,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2897 Valid, 2210 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [919 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-14 01:20:23,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2259 states. [2022-07-14 01:20:23,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2259 to 2208. [2022-07-14 01:20:23,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 1727 states have (on average 1.451650260567458) internal successors, (2507), 1752 states have internal predecessors, (2507), 399 states have call successors, (399), 82 states have call predecessors, (399), 81 states have return successors, (395), 387 states have call predecessors, (395), 395 states have call successors, (395) [2022-07-14 01:20:23,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 3301 transitions. [2022-07-14 01:20:23,473 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 3301 transitions. Word has length 224 [2022-07-14 01:20:23,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:20:23,474 INFO L495 AbstractCegarLoop]: Abstraction has 2208 states and 3301 transitions. [2022-07-14 01:20:23,474 INFO L496 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, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:20:23,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 3301 transitions. [2022-07-14 01:20:23,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-14 01:20:23,477 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:20:23,477 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:20:23,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 01:20:23,477 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:20:23,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:20:23,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1943191272, now seen corresponding path program 1 times [2022-07-14 01:20:23,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:20:23,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039041337] [2022-07-14 01:20:23,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:20:23,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:20:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:20:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:20:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:20:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:20:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:20:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:20:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:20:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:20:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:20:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:20:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:20:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:20:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:20:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:20:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:20:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:23,944 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-14 01:20:23,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:20:23,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039041337] [2022-07-14 01:20:23,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039041337] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:20:23,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:20:23,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:20:23,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990977538] [2022-07-14 01:20:23,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:20:23,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:20:23,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:20:23,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:20:23,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:20:23,947 INFO L87 Difference]: Start difference. First operand 2208 states and 3301 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, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:20:26,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:20:29,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:20:29,600 INFO L93 Difference]: Finished difference Result 2261 states and 3392 transitions. [2022-07-14 01:20:29,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 01:20:29,601 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, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 225 [2022-07-14 01:20:29,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:20:29,622 INFO L225 Difference]: With dead ends: 2261 [2022-07-14 01:20:29,622 INFO L226 Difference]: Without dead ends: 2258 [2022-07-14 01:20:29,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:20:29,627 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 2319 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2446 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-07-14 01:20:29,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2446 Valid, 3388 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [646 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-07-14 01:20:29,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2022-07-14 01:20:29,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2207. [2022-07-14 01:20:29,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2207 states, 1727 states have (on average 1.4510712217718587) internal successors, (2506), 1751 states have internal predecessors, (2506), 398 states have call successors, (398), 82 states have call predecessors, (398), 81 states have return successors, (395), 387 states have call predecessors, (395), 395 states have call successors, (395) [2022-07-14 01:20:29,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 3299 transitions. [2022-07-14 01:20:29,759 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 3299 transitions. Word has length 225 [2022-07-14 01:20:29,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:20:29,759 INFO L495 AbstractCegarLoop]: Abstraction has 2207 states and 3299 transitions. [2022-07-14 01:20:29,760 INFO L496 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, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:20:29,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 3299 transitions. [2022-07-14 01:20:29,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-07-14 01:20:29,763 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:20:29,763 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:20:29,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 01:20:29,764 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:20:29,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:20:29,765 INFO L85 PathProgramCache]: Analyzing trace with hash 109090970, now seen corresponding path program 1 times [2022-07-14 01:20:29,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:20:29,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489820818] [2022-07-14 01:20:29,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:20:29,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:20:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:29,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:20:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:29,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:29,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:29,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:20:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:29,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:29,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:29,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:20:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:29,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:29,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:29,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:20:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:20:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:20:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:20:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:20:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:20:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:20:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:20:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:20:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:20:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:20:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:20:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:30,184 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-14 01:20:30,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:20:30,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489820818] [2022-07-14 01:20:30,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489820818] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:20:30,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:20:30,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:20:30,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996822247] [2022-07-14 01:20:30,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:20:30,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:20:30,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:20:30,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:20:30,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:20:30,186 INFO L87 Difference]: Start difference. First operand 2207 states and 3299 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, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:20:32,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:20:32,315 INFO L93 Difference]: Finished difference Result 2260 states and 3390 transitions. [2022-07-14 01:20:32,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 01:20:32,315 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, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 226 [2022-07-14 01:20:32,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:20:32,326 INFO L225 Difference]: With dead ends: 2260 [2022-07-14 01:20:32,327 INFO L226 Difference]: Without dead ends: 2257 [2022-07-14 01:20:32,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:20:32,329 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 2769 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 917 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 917 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:20:32,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2895 Valid, 2202 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [917 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-14 01:20:32,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2022-07-14 01:20:32,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2206. [2022-07-14 01:20:32,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 1727 states have (on average 1.4504921829762594) internal successors, (2505), 1750 states have internal predecessors, (2505), 397 states have call successors, (397), 82 states have call predecessors, (397), 81 states have return successors, (395), 387 states have call predecessors, (395), 395 states have call successors, (395) [2022-07-14 01:20:32,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 3297 transitions. [2022-07-14 01:20:32,417 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 3297 transitions. Word has length 226 [2022-07-14 01:20:32,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:20:32,420 INFO L495 AbstractCegarLoop]: Abstraction has 2206 states and 3297 transitions. [2022-07-14 01:20:32,421 INFO L496 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, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:20:32,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 3297 transitions. [2022-07-14 01:20:32,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-07-14 01:20:32,425 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:20:32,425 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:20:32,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 01:20:32,425 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:20:32,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:20:32,426 INFO L85 PathProgramCache]: Analyzing trace with hash -913438677, now seen corresponding path program 1 times [2022-07-14 01:20:32,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:20:32,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137368432] [2022-07-14 01:20:32,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:20:32,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:20:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:20:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:20:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:20:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:20:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:20:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:20:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:20:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:32,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:20:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:20:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:20:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:20:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:20:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:20:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:20:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:20:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:32,850 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-14 01:20:32,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:20:32,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137368432] [2022-07-14 01:20:32,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137368432] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:20:32,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:20:32,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:20:32,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596804282] [2022-07-14 01:20:32,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:20:32,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:20:32,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:20:32,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:20:32,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:20:32,854 INFO L87 Difference]: Start difference. First operand 2206 states and 3297 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:20:36,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:20:39,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:20:42,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:20:42,245 INFO L93 Difference]: Finished difference Result 4438 states and 6670 transitions. [2022-07-14 01:20:42,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:20:42,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 227 [2022-07-14 01:20:42,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:20:42,273 INFO L225 Difference]: With dead ends: 4438 [2022-07-14 01:20:42,273 INFO L226 Difference]: Without dead ends: 4427 [2022-07-14 01:20:42,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:20:42,278 INFO L413 NwaCegarLoop]: 1688 mSDtfsCounter, 3168 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 2478 mSolverCounterSat, 1134 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3294 SdHoareTripleChecker+Valid, 4500 SdHoareTripleChecker+Invalid, 3613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1134 IncrementalHoareTripleChecker+Valid, 2478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:20:42,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3294 Valid, 4500 Invalid, 3613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1134 Valid, 2478 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2022-07-14 01:20:42,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4427 states. [2022-07-14 01:20:42,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4427 to 4328. [2022-07-14 01:20:42,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4328 states, 3400 states have (on average 1.455) internal successors, (4947), 3443 states have internal predecessors, (4947), 770 states have call successors, (770), 160 states have call predecessors, (770), 157 states have return successors, (768), 750 states have call predecessors, (768), 768 states have call successors, (768) [2022-07-14 01:20:42,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4328 states to 4328 states and 6485 transitions. [2022-07-14 01:20:42,504 INFO L78 Accepts]: Start accepts. Automaton has 4328 states and 6485 transitions. Word has length 227 [2022-07-14 01:20:42,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:20:42,505 INFO L495 AbstractCegarLoop]: Abstraction has 4328 states and 6485 transitions. [2022-07-14 01:20:42,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:20:42,505 INFO L276 IsEmpty]: Start isEmpty. Operand 4328 states and 6485 transitions. [2022-07-14 01:20:42,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-07-14 01:20:42,524 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:20:42,524 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:20:42,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 01:20:42,525 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:20:42,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:20:42,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1626368121, now seen corresponding path program 1 times [2022-07-14 01:20:42,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:20:42,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301059037] [2022-07-14 01:20:42,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:20:42,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:20:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:20:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:20:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:20:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:20:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:20:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:20:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:20:42,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:20:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:20:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:20:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:20:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:20:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:20:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:20:42,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:20:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-14 01:20:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-14 01:20:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:42,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-14 01:20:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:43,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-14 01:20:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:43,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:43,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 01:20:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:43,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-14 01:20:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:43,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-14 01:20:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:43,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-14 01:20:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:43,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-07-14 01:20:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:43,040 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2022-07-14 01:20:43,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:20:43,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301059037] [2022-07-14 01:20:43,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301059037] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:20:43,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:20:43,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:20:43,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604394081] [2022-07-14 01:20:43,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:20:43,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:20:43,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:20:43,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:20:43,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:20:43,042 INFO L87 Difference]: Start difference. First operand 4328 states and 6485 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 01:20:45,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:20:48,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:20:48,514 INFO L93 Difference]: Finished difference Result 8907 states and 13355 transitions. [2022-07-14 01:20:48,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 01:20:48,515 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 333 [2022-07-14 01:20:48,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:20:48,542 INFO L225 Difference]: With dead ends: 8907 [2022-07-14 01:20:48,543 INFO L226 Difference]: Without dead ends: 4618 [2022-07-14 01:20:48,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-07-14 01:20:48,561 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 1587 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 2168 mSolverCounterSat, 856 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1631 SdHoareTripleChecker+Valid, 4130 SdHoareTripleChecker+Invalid, 3025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 856 IncrementalHoareTripleChecker+Valid, 2168 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:20:48,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1631 Valid, 4130 Invalid, 3025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [856 Valid, 2168 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-07-14 01:20:48,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4618 states. [2022-07-14 01:20:48,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4618 to 4506. [2022-07-14 01:20:48,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4506 states, 3552 states have (on average 1.4538288288288288) internal successors, (5164), 3595 states have internal predecessors, (5164), 788 states have call successors, (788), 168 states have call predecessors, (788), 165 states have return successors, (786), 768 states have call predecessors, (786), 786 states have call successors, (786) [2022-07-14 01:20:48,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4506 states to 4506 states and 6738 transitions. [2022-07-14 01:20:48,761 INFO L78 Accepts]: Start accepts. Automaton has 4506 states and 6738 transitions. Word has length 333 [2022-07-14 01:20:48,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:20:48,761 INFO L495 AbstractCegarLoop]: Abstraction has 4506 states and 6738 transitions. [2022-07-14 01:20:48,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 01:20:48,762 INFO L276 IsEmpty]: Start isEmpty. Operand 4506 states and 6738 transitions. [2022-07-14 01:20:48,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-07-14 01:20:48,778 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:20:48,778 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:20:48,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 01:20:48,778 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:20:48,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:20:48,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1305229095, now seen corresponding path program 1 times [2022-07-14 01:20:48,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:20:48,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832088291] [2022-07-14 01:20:48,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:20:48,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:20:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:48,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:20:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:20:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:20:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:20:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:20:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:20:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:20:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:20:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:20:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:20:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:20:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:20:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:20:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:20:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:20:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 01:20:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 01:20:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 01:20:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 01:20:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-14 01:20:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-14 01:20:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-14 01:20:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-14 01:20:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-14 01:20:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-14 01:20:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:49,306 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-14 01:20:49,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:20:49,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832088291] [2022-07-14 01:20:49,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832088291] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:20:49,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:20:49,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:20:49,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534021115] [2022-07-14 01:20:49,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:20:49,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:20:49,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:20:49,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:20:49,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:20:49,309 INFO L87 Difference]: Start difference. First operand 4506 states and 6738 transitions. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:20:51,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:20:56,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:20:56,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:20:56,222 INFO L93 Difference]: Finished difference Result 9061 states and 13586 transitions. [2022-07-14 01:20:56,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:20:56,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 358 [2022-07-14 01:20:56,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:20:56,250 INFO L225 Difference]: With dead ends: 9061 [2022-07-14 01:20:56,251 INFO L226 Difference]: Without dead ends: 4612 [2022-07-14 01:20:56,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-07-14 01:20:56,270 INFO L413 NwaCegarLoop]: 1520 mSDtfsCounter, 1441 mSDsluCounter, 2704 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 819 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 4224 SdHoareTripleChecker+Invalid, 2877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 819 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-07-14 01:20:56,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 4224 Invalid, 2877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [819 Valid, 2057 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-07-14 01:20:56,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4612 states. [2022-07-14 01:20:56,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4612 to 4510. [2022-07-14 01:20:56,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4510 states, 3556 states have (on average 1.453318335208099) internal successors, (5168), 3599 states have internal predecessors, (5168), 788 states have call successors, (788), 168 states have call predecessors, (788), 165 states have return successors, (786), 768 states have call predecessors, (786), 786 states have call successors, (786) [2022-07-14 01:20:56,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4510 states to 4510 states and 6742 transitions. [2022-07-14 01:20:56,506 INFO L78 Accepts]: Start accepts. Automaton has 4510 states and 6742 transitions. Word has length 358 [2022-07-14 01:20:56,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:20:56,508 INFO L495 AbstractCegarLoop]: Abstraction has 4510 states and 6742 transitions. [2022-07-14 01:20:56,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:20:56,509 INFO L276 IsEmpty]: Start isEmpty. Operand 4510 states and 6742 transitions. [2022-07-14 01:20:56,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-07-14 01:20:56,526 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:20:56,526 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:20:56,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 01:20:56,527 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:20:56,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:20:56,527 INFO L85 PathProgramCache]: Analyzing trace with hash 248497893, now seen corresponding path program 1 times [2022-07-14 01:20:56,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:20:56,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634361419] [2022-07-14 01:20:56,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:20:56,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:20:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:20:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:20:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:20:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:20:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:20:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:20:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:20:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:20:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:20:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:20:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:20:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:20:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:20:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:20:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:20:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 01:20:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 01:20:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:56,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 01:20:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:57,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 01:20:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:57,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-14 01:20:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:57,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:57,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-14 01:20:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:57,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-14 01:20:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:57,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-14 01:20:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:57,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-14 01:20:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:57,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-14 01:20:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:57,059 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-14 01:20:57,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:20:57,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634361419] [2022-07-14 01:20:57,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634361419] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:20:57,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:20:57,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:20:57,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5487789] [2022-07-14 01:20:57,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:20:57,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:20:57,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:20:57,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:20:57,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:20:57,062 INFO L87 Difference]: Start difference. First operand 4510 states and 6742 transitions. Second operand has 8 states, 8 states have (on average 17.375) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:21:04,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:21:04,402 INFO L93 Difference]: Finished difference Result 11727 states and 18018 transitions. [2022-07-14 01:21:04,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 01:21:04,403 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.375) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 358 [2022-07-14 01:21:04,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:21:04,452 INFO L225 Difference]: With dead ends: 11727 [2022-07-14 01:21:04,452 INFO L226 Difference]: Without dead ends: 7274 [2022-07-14 01:21:04,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-07-14 01:21:04,479 INFO L413 NwaCegarLoop]: 2105 mSDtfsCounter, 2481 mSDsluCounter, 5201 mSDsCounter, 0 mSdLazyCounter, 3614 mSolverCounterSat, 963 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2632 SdHoareTripleChecker+Valid, 7306 SdHoareTripleChecker+Invalid, 4577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 963 IncrementalHoareTripleChecker+Valid, 3614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-07-14 01:21:04,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2632 Valid, 7306 Invalid, 4577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [963 Valid, 3614 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-07-14 01:21:04,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7274 states. [2022-07-14 01:21:04,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7274 to 4518. [2022-07-14 01:21:04,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4518 states, 3564 states have (on average 1.452300785634119) internal successors, (5176), 3607 states have internal predecessors, (5176), 788 states have call successors, (788), 168 states have call predecessors, (788), 165 states have return successors, (786), 768 states have call predecessors, (786), 786 states have call successors, (786) [2022-07-14 01:21:04,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4518 states to 4518 states and 6750 transitions. [2022-07-14 01:21:04,792 INFO L78 Accepts]: Start accepts. Automaton has 4518 states and 6750 transitions. Word has length 358 [2022-07-14 01:21:04,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:21:04,792 INFO L495 AbstractCegarLoop]: Abstraction has 4518 states and 6750 transitions. [2022-07-14 01:21:04,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.375) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:21:04,793 INFO L276 IsEmpty]: Start isEmpty. Operand 4518 states and 6750 transitions. [2022-07-14 01:21:04,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2022-07-14 01:21:04,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:21:04,808 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:21:04,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 01:21:04,809 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:21:04,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:21:04,809 INFO L85 PathProgramCache]: Analyzing trace with hash -502414417, now seen corresponding path program 1 times [2022-07-14 01:21:04,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:21:04,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312631644] [2022-07-14 01:21:04,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:21:04,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:21:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:21:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:21:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:21:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:21:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:21:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:21:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:21:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:21:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:21:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:21:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:21:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:21:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:21:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:21:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:21:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 01:21:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 01:21:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 01:21:05,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 01:21:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-14 01:21:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:05,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-14 01:21:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-14 01:21:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-14 01:21:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-14 01:21:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-07-14 01:21:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:05,327 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-14 01:21:05,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:21:05,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312631644] [2022-07-14 01:21:05,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312631644] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:21:05,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:21:05,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:21:05,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993342363] [2022-07-14 01:21:05,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:21:05,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:21:05,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:21:05,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:21:05,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:21:05,330 INFO L87 Difference]: Start difference. First operand 4518 states and 6750 transitions. Second operand has 8 states, 8 states have (on average 19.75) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:21:08,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:21:11,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:21:11,709 INFO L93 Difference]: Finished difference Result 11745 states and 18016 transitions. [2022-07-14 01:21:11,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 01:21:11,710 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 377 [2022-07-14 01:21:11,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:21:11,741 INFO L225 Difference]: With dead ends: 11745 [2022-07-14 01:21:11,741 INFO L226 Difference]: Without dead ends: 7284 [2022-07-14 01:21:11,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-07-14 01:21:11,759 INFO L413 NwaCegarLoop]: 2151 mSDtfsCounter, 2913 mSDsluCounter, 4309 mSDsCounter, 0 mSdLazyCounter, 2907 mSolverCounterSat, 1207 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3020 SdHoareTripleChecker+Valid, 6460 SdHoareTripleChecker+Invalid, 4115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1207 IncrementalHoareTripleChecker+Valid, 2907 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-14 01:21:11,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3020 Valid, 6460 Invalid, 4115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1207 Valid, 2907 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-07-14 01:21:11,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7284 states. [2022-07-14 01:21:11,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7284 to 4526. [2022-07-14 01:21:12,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4526 states, 3572 states have (on average 1.4512877939529676) internal successors, (5184), 3615 states have internal predecessors, (5184), 788 states have call successors, (788), 168 states have call predecessors, (788), 165 states have return successors, (786), 768 states have call predecessors, (786), 786 states have call successors, (786) [2022-07-14 01:21:12,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4526 states to 4526 states and 6758 transitions. [2022-07-14 01:21:12,018 INFO L78 Accepts]: Start accepts. Automaton has 4526 states and 6758 transitions. Word has length 377 [2022-07-14 01:21:12,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:21:12,019 INFO L495 AbstractCegarLoop]: Abstraction has 4526 states and 6758 transitions. [2022-07-14 01:21:12,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:21:12,020 INFO L276 IsEmpty]: Start isEmpty. Operand 4526 states and 6758 transitions. [2022-07-14 01:21:12,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-07-14 01:21:12,036 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:21:12,036 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:21:12,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 01:21:12,037 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:21:12,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:21:12,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1365836942, now seen corresponding path program 1 times [2022-07-14 01:21:12,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:21:12,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197916425] [2022-07-14 01:21:12,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:21:12,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:21:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:21:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:21:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:21:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:21:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:21:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:21:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:21:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:21:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:21:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:21:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:21:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:21:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:21:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:21:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:21:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 01:21:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 01:21:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 01:21:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 01:21:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-14 01:21:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-14 01:21:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-14 01:21:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-14 01:21:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-07-14 01:21:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-14 01:21:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:12,523 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-14 01:21:12,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:21:12,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197916425] [2022-07-14 01:21:12,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197916425] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:21:12,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:21:12,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:21:12,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784900162] [2022-07-14 01:21:12,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:21:12,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:21:12,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:21:12,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:21:12,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:21:12,526 INFO L87 Difference]: Start difference. First operand 4526 states and 6758 transitions. Second operand has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:21:16,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:21:19,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:21:19,534 INFO L93 Difference]: Finished difference Result 9101 states and 13626 transitions. [2022-07-14 01:21:19,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:21:19,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 378 [2022-07-14 01:21:19,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:21:19,585 INFO L225 Difference]: With dead ends: 9101 [2022-07-14 01:21:19,586 INFO L226 Difference]: Without dead ends: 4632 [2022-07-14 01:21:19,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-07-14 01:21:19,604 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 1436 mSDsluCounter, 3220 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 4741 SdHoareTripleChecker+Invalid, 3350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 804 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-07-14 01:21:19,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 4741 Invalid, 3350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [804 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-07-14 01:21:19,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2022-07-14 01:21:19,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4530. [2022-07-14 01:21:19,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4530 states, 3576 states have (on average 1.4507829977628635) internal successors, (5188), 3619 states have internal predecessors, (5188), 788 states have call successors, (788), 168 states have call predecessors, (788), 165 states have return successors, (786), 768 states have call predecessors, (786), 786 states have call successors, (786) [2022-07-14 01:21:19,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4530 states to 4530 states and 6762 transitions. [2022-07-14 01:21:19,810 INFO L78 Accepts]: Start accepts. Automaton has 4530 states and 6762 transitions. Word has length 378 [2022-07-14 01:21:19,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:21:19,810 INFO L495 AbstractCegarLoop]: Abstraction has 4530 states and 6762 transitions. [2022-07-14 01:21:19,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:21:19,811 INFO L276 IsEmpty]: Start isEmpty. Operand 4530 states and 6762 transitions. [2022-07-14 01:21:19,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-07-14 01:21:19,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:21:19,825 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:21:19,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 01:21:19,826 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:21:19,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:21:19,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1020672564, now seen corresponding path program 1 times [2022-07-14 01:21:19,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:21:19,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354865940] [2022-07-14 01:21:19,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:21:19,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:21:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:21:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:21:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:21:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:21:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:21:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:21:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:21:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:21:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:21:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:21:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:21:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:21:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:21:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:21:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:21:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 01:21:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 01:21:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 01:21:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 01:21:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-14 01:21:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-14 01:21:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-14 01:21:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-14 01:21:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-07-14 01:21:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-14 01:21:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:20,349 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-14 01:21:20,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:21:20,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354865940] [2022-07-14 01:21:20,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354865940] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:21:20,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:21:20,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:21:20,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233657513] [2022-07-14 01:21:20,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:21:20,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:21:20,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:21:20,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:21:20,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:21:20,352 INFO L87 Difference]: Start difference. First operand 4530 states and 6762 transitions. Second operand has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:21:22,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:21:23,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:21:29,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:21:30,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:21:30,315 INFO L93 Difference]: Finished difference Result 11555 states and 17605 transitions. [2022-07-14 01:21:30,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:21:30,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 378 [2022-07-14 01:21:30,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:21:30,346 INFO L225 Difference]: With dead ends: 11555 [2022-07-14 01:21:30,346 INFO L226 Difference]: Without dead ends: 7082 [2022-07-14 01:21:30,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-07-14 01:21:30,361 INFO L413 NwaCegarLoop]: 2178 mSDtfsCounter, 2149 mSDsluCounter, 3869 mSDsCounter, 0 mSdLazyCounter, 2705 mSolverCounterSat, 918 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 6047 SdHoareTripleChecker+Invalid, 3624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 2705 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-07-14 01:21:30,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2296 Valid, 6047 Invalid, 3624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 2705 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2022-07-14 01:21:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7082 states. [2022-07-14 01:21:30,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7082 to 4670. [2022-07-14 01:21:30,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4670 states, 3688 states have (on average 1.4490238611713666) internal successors, (5344), 3731 states have internal predecessors, (5344), 816 states have call successors, (816), 168 states have call predecessors, (816), 165 states have return successors, (814), 796 states have call predecessors, (814), 814 states have call successors, (814) [2022-07-14 01:21:30,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4670 states to 4670 states and 6974 transitions. [2022-07-14 01:21:30,616 INFO L78 Accepts]: Start accepts. Automaton has 4670 states and 6974 transitions. Word has length 378 [2022-07-14 01:21:30,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:21:30,616 INFO L495 AbstractCegarLoop]: Abstraction has 4670 states and 6974 transitions. [2022-07-14 01:21:30,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:21:30,617 INFO L276 IsEmpty]: Start isEmpty. Operand 4670 states and 6974 transitions. [2022-07-14 01:21:30,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-07-14 01:21:30,632 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:21:30,632 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:21:30,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 01:21:30,632 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:21:30,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:21:30,633 INFO L85 PathProgramCache]: Analyzing trace with hash 109220375, now seen corresponding path program 1 times [2022-07-14 01:21:30,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:21:30,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159399194] [2022-07-14 01:21:30,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:21:30,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:21:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:30,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:21:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:30,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:30,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:30,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:21:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:30,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:30,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:30,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:21:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:30,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:30,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:30,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:21:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:30,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:30,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:21:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:21:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:21:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:21:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:21:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:21:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:21:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:21:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:21:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:21:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:21:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 01:21:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 01:21:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 01:21:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 01:21:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-14 01:21:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-14 01:21:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-14 01:21:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-07-14 01:21:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-07-14 01:21:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-07-14 01:21:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:31,260 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-14 01:21:31,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:21:31,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159399194] [2022-07-14 01:21:31,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159399194] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:21:31,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:21:31,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:21:31,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51260391] [2022-07-14 01:21:31,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:21:31,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:21:31,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:21:31,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:21:31,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:21:31,263 INFO L87 Difference]: Start difference. First operand 4670 states and 6974 transitions. Second operand has 8 states, 8 states have (on average 20.0) internal successors, (160), 4 states have internal predecessors, (160), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:21:34,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:21:42,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:21:42,114 INFO L93 Difference]: Finished difference Result 12563 states and 19342 transitions. [2022-07-14 01:21:42,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 01:21:42,115 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 4 states have internal predecessors, (160), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 379 [2022-07-14 01:21:42,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:21:42,260 INFO L225 Difference]: With dead ends: 12563 [2022-07-14 01:21:42,260 INFO L226 Difference]: Without dead ends: 7950 [2022-07-14 01:21:42,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-07-14 01:21:42,289 INFO L413 NwaCegarLoop]: 2301 mSDtfsCounter, 2649 mSDsluCounter, 6627 mSDsCounter, 0 mSdLazyCounter, 4663 mSolverCounterSat, 927 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 8928 SdHoareTripleChecker+Invalid, 5590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 927 IncrementalHoareTripleChecker+Valid, 4663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:21:42,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2823 Valid, 8928 Invalid, 5590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [927 Valid, 4663 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2022-07-14 01:21:42,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7950 states. [2022-07-14 01:21:42,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7950 to 4678. [2022-07-14 01:21:42,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4678 states, 3696 states have (on average 1.448051948051948) internal successors, (5352), 3739 states have internal predecessors, (5352), 816 states have call successors, (816), 168 states have call predecessors, (816), 165 states have return successors, (814), 796 states have call predecessors, (814), 814 states have call successors, (814) [2022-07-14 01:21:42,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4678 states to 4678 states and 6982 transitions. [2022-07-14 01:21:42,710 INFO L78 Accepts]: Start accepts. Automaton has 4678 states and 6982 transitions. Word has length 379 [2022-07-14 01:21:42,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:21:42,711 INFO L495 AbstractCegarLoop]: Abstraction has 4678 states and 6982 transitions. [2022-07-14 01:21:42,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 4 states have internal predecessors, (160), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:21:42,711 INFO L276 IsEmpty]: Start isEmpty. Operand 4678 states and 6982 transitions. [2022-07-14 01:21:42,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-07-14 01:21:42,724 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:21:42,724 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:21:42,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 01:21:42,725 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:21:42,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:21:42,725 INFO L85 PathProgramCache]: Analyzing trace with hash -315279114, now seen corresponding path program 1 times [2022-07-14 01:21:42,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:21:42,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843942273] [2022-07-14 01:21:42,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:21:42,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:21:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:21:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:21:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:21:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:21:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:21:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:21:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:21:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:21:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:21:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:21:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:21:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:21:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:21:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:21:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:21:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 01:21:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 01:21:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 01:21:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 01:21:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-14 01:21:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-14 01:21:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-14 01:21:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-14 01:21:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-14 01:21:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-14 01:21:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-14 01:21:43,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:21:43,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843942273] [2022-07-14 01:21:43,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843942273] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:21:43,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093184322] [2022-07-14 01:21:43,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:21:43,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:21:43,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:21:43,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 01:21:43,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 01:21:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:44,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 3955 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 01:21:44,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:21:44,530 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-14 01:21:44,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:21:44,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093184322] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:21:44,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:21:44,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-07-14 01:21:44,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096533602] [2022-07-14 01:21:44,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:21:44,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 01:21:44,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:21:44,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 01:21:44,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-14 01:21:44,534 INFO L87 Difference]: Start difference. First operand 4678 states and 6982 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:21:44,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:21:44,955 INFO L93 Difference]: Finished difference Result 11909 states and 18064 transitions. [2022-07-14 01:21:44,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 01:21:44,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 380 [2022-07-14 01:21:44,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:21:44,990 INFO L225 Difference]: With dead ends: 11909 [2022-07-14 01:21:44,990 INFO L226 Difference]: Without dead ends: 7288 [2022-07-14 01:21:45,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-14 01:21:45,006 INFO L413 NwaCegarLoop]: 2338 mSDtfsCounter, 711 mSDsluCounter, 4100 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 6438 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:21:45,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 6438 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:21:45,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7288 states. [2022-07-14 01:21:45,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7288 to 4966. [2022-07-14 01:21:45,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4966 states, 3928 states have (on average 1.445010183299389) internal successors, (5676), 3971 states have internal predecessors, (5676), 872 states have call successors, (872), 168 states have call predecessors, (872), 165 states have return successors, (870), 852 states have call predecessors, (870), 870 states have call successors, (870) [2022-07-14 01:21:45,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4966 states to 4966 states and 7418 transitions. [2022-07-14 01:21:45,307 INFO L78 Accepts]: Start accepts. Automaton has 4966 states and 7418 transitions. Word has length 380 [2022-07-14 01:21:45,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:21:45,308 INFO L495 AbstractCegarLoop]: Abstraction has 4966 states and 7418 transitions. [2022-07-14 01:21:45,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:21:45,309 INFO L276 IsEmpty]: Start isEmpty. Operand 4966 states and 7418 transitions. [2022-07-14 01:21:45,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-07-14 01:21:45,323 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:21:45,323 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:21:45,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 01:21:45,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-14 01:21:45,548 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:21:45,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:21:45,548 INFO L85 PathProgramCache]: Analyzing trace with hash -369672012, now seen corresponding path program 1 times [2022-07-14 01:21:45,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:21:45,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429671337] [2022-07-14 01:21:45,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:21:45,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:21:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:21:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:21:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:21:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:21:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:21:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:21:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:21:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:21:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:21:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:21:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:21:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:21:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:21:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:45,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:21:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:21:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 01:21:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 01:21:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 01:21:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 01:21:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-14 01:21:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-14 01:21:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-14 01:21:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-14 01:21:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-14 01:21:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-14 01:21:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:46,096 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-14 01:21:46,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:21:46,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429671337] [2022-07-14 01:21:46,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429671337] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:21:46,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696202508] [2022-07-14 01:21:46,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:21:46,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:21:46,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:21:46,099 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 01:21:46,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 01:21:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:47,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 3952 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 01:21:47,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:21:47,547 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2022-07-14 01:21:47,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:21:47,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696202508] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:21:47,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:21:47,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2022-07-14 01:21:47,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957107119] [2022-07-14 01:21:47,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:21:47,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 01:21:47,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:21:47,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 01:21:47,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:21:47,550 INFO L87 Difference]: Start difference. First operand 4966 states and 7418 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 01:21:49,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:21:49,040 INFO L93 Difference]: Finished difference Result 14790 states and 22117 transitions. [2022-07-14 01:21:49,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 01:21:49,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 380 [2022-07-14 01:21:49,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:21:49,119 INFO L225 Difference]: With dead ends: 14790 [2022-07-14 01:21:49,120 INFO L226 Difference]: Without dead ends: 14780 [2022-07-14 01:21:49,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 478 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:21:49,127 INFO L413 NwaCegarLoop]: 3502 mSDtfsCounter, 3163 mSDsluCounter, 2894 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3163 SdHoareTripleChecker+Valid, 6396 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:21:49,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3163 Valid, 6396 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-14 01:21:49,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14780 states. [2022-07-14 01:21:49,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14780 to 14746. [2022-07-14 01:21:49,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14746 states, 11684 states have (on average 1.4484765491270113) internal successors, (16924), 11827 states have internal predecessors, (16924), 2576 states have call successors, (2576), 492 states have call predecessors, (2576), 485 states have return successors, (2574), 2504 states have call predecessors, (2574), 2574 states have call successors, (2574) [2022-07-14 01:21:49,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14746 states to 14746 states and 22074 transitions. [2022-07-14 01:21:49,916 INFO L78 Accepts]: Start accepts. Automaton has 14746 states and 22074 transitions. Word has length 380 [2022-07-14 01:21:49,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:21:49,916 INFO L495 AbstractCegarLoop]: Abstraction has 14746 states and 22074 transitions. [2022-07-14 01:21:49,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 01:21:49,917 INFO L276 IsEmpty]: Start isEmpty. Operand 14746 states and 22074 transitions. [2022-07-14 01:21:49,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-07-14 01:21:49,947 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:21:49,948 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:21:49,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 01:21:50,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-14 01:21:50,164 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:21:50,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:21:50,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1390740366, now seen corresponding path program 1 times [2022-07-14 01:21:50,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:21:50,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437886474] [2022-07-14 01:21:50,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:21:50,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:21:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:21:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:21:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:21:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:21:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:21:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:21:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:21:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:21:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:21:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:21:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:21:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:21:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:21:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:21:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:21:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 01:21:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:21:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 01:21:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 01:21:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 01:21:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-14 01:21:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:21:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-14 01:21:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-14 01:21:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-14 01:21:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-14 01:21:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-14 01:21:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:21:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-14 01:21:50,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:21:50,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437886474] [2022-07-14 01:21:50,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437886474] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:21:50,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:21:50,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:21:50,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620446549] [2022-07-14 01:21:50,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:21:50,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:21:50,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:21:50,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:21:50,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:21:50,611 INFO L87 Difference]: Start difference. First operand 14746 states and 22074 transitions. Second operand has 8 states, 8 states have (on average 20.125) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2022-07-14 01:21:53,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:22:01,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:22:04,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:22:06,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:22:06,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:22:06,540 INFO L93 Difference]: Finished difference Result 38870 states and 58662 transitions. [2022-07-14 01:22:06,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 01:22:06,541 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 380 [2022-07-14 01:22:06,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:22:06,653 INFO L225 Difference]: With dead ends: 38870 [2022-07-14 01:22:06,653 INFO L226 Difference]: Without dead ends: 31469 [2022-07-14 01:22:06,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2022-07-14 01:22:06,691 INFO L413 NwaCegarLoop]: 1966 mSDtfsCounter, 4519 mSDsluCounter, 5086 mSDsCounter, 0 mSdLazyCounter, 4578 mSolverCounterSat, 1871 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4685 SdHoareTripleChecker+Valid, 7052 SdHoareTripleChecker+Invalid, 6453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1871 IncrementalHoareTripleChecker+Valid, 4578 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-07-14 01:22:06,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4685 Valid, 7052 Invalid, 6453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1871 Valid, 4578 Invalid, 4 Unknown, 0 Unchecked, 14.6s Time] [2022-07-14 01:22:06,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31469 states. [2022-07-14 01:22:07,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31469 to 14752. [2022-07-14 01:22:07,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14752 states, 11690 states have (on average 1.448246364414029) internal successors, (16930), 11835 states have internal predecessors, (16930), 2576 states have call successors, (2576), 492 states have call predecessors, (2576), 485 states have return successors, (2574), 2502 states have call predecessors, (2574), 2574 states have call successors, (2574) [2022-07-14 01:22:07,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14752 states to 14752 states and 22080 transitions. [2022-07-14 01:22:07,847 INFO L78 Accepts]: Start accepts. Automaton has 14752 states and 22080 transitions. Word has length 380 [2022-07-14 01:22:07,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:22:07,848 INFO L495 AbstractCegarLoop]: Abstraction has 14752 states and 22080 transitions. [2022-07-14 01:22:07,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2022-07-14 01:22:07,849 INFO L276 IsEmpty]: Start isEmpty. Operand 14752 states and 22080 transitions. [2022-07-14 01:22:07,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2022-07-14 01:22:07,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:22:07,875 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:22:07,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-14 01:22:07,876 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:22:07,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:22:07,877 INFO L85 PathProgramCache]: Analyzing trace with hash -483530233, now seen corresponding path program 1 times [2022-07-14 01:22:07,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:22:07,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293601131] [2022-07-14 01:22:07,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:22:07,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:22:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:22:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:22:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:22:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:22:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:22:08,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:22:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:22:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:22:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:22:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:22:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:22:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:22:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:22:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:22:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:22:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 01:22:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 01:22:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 01:22:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 01:22:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-14 01:22:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-14 01:22:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-14 01:22:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-14 01:22:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-14 01:22:08,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-14 01:22:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:08,549 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-14 01:22:08,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:22:08,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293601131] [2022-07-14 01:22:08,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293601131] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:22:08,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:22:08,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:22:08,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239113148] [2022-07-14 01:22:08,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:22:08,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:22:08,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:22:08,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:22:08,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:22:08,553 INFO L87 Difference]: Start difference. First operand 14752 states and 22080 transitions. Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (30), 7 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:22:11,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:22:16,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:22:16,923 INFO L93 Difference]: Finished difference Result 38397 states and 58579 transitions. [2022-07-14 01:22:16,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 01:22:16,928 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (30), 7 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 381 [2022-07-14 01:22:16,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:22:17,008 INFO L225 Difference]: With dead ends: 38397 [2022-07-14 01:22:17,008 INFO L226 Difference]: Without dead ends: 23702 [2022-07-14 01:22:17,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-07-14 01:22:17,058 INFO L413 NwaCegarLoop]: 1919 mSDtfsCounter, 3138 mSDsluCounter, 3578 mSDsCounter, 0 mSdLazyCounter, 2164 mSolverCounterSat, 1720 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3264 SdHoareTripleChecker+Valid, 5497 SdHoareTripleChecker+Invalid, 3884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1720 IncrementalHoareTripleChecker+Valid, 2164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:22:17,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3264 Valid, 5497 Invalid, 3884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1720 Valid, 2164 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-07-14 01:22:17,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23702 states. [2022-07-14 01:22:18,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23702 to 14764. [2022-07-14 01:22:18,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14764 states, 11702 states have (on average 1.4477867031276705) internal successors, (16942), 11847 states have internal predecessors, (16942), 2576 states have call successors, (2576), 492 states have call predecessors, (2576), 485 states have return successors, (2574), 2502 states have call predecessors, (2574), 2574 states have call successors, (2574) [2022-07-14 01:22:18,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14764 states to 14764 states and 22092 transitions. [2022-07-14 01:22:18,106 INFO L78 Accepts]: Start accepts. Automaton has 14764 states and 22092 transitions. Word has length 381 [2022-07-14 01:22:18,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:22:18,107 INFO L495 AbstractCegarLoop]: Abstraction has 14764 states and 22092 transitions. [2022-07-14 01:22:18,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (30), 7 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:22:18,107 INFO L276 IsEmpty]: Start isEmpty. Operand 14764 states and 22092 transitions. [2022-07-14 01:22:18,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2022-07-14 01:22:18,133 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:22:18,134 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:22:18,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-14 01:22:18,134 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:22:18,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:22:18,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1096152730, now seen corresponding path program 1 times [2022-07-14 01:22:18,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:22:18,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358964753] [2022-07-14 01:22:18,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:22:18,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:22:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:22:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:22:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:22:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:22:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:22:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:22:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:22:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:22:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:18,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:22:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:22:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:22:19,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:22:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:22:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:22:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:22:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 01:22:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 01:22:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-14 01:22:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-14 01:22:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-14 01:22:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-14 01:22:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-14 01:22:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-14 01:22:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-14 01:22:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-14 01:22:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:19,531 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-14 01:22:19,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:22:19,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358964753] [2022-07-14 01:22:19,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358964753] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:22:19,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:22:19,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-14 01:22:19,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112728032] [2022-07-14 01:22:19,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:22:19,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-14 01:22:19,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:22:19,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-14 01:22:19,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-07-14 01:22:19,535 INFO L87 Difference]: Start difference. First operand 14764 states and 22092 transitions. Second operand has 18 states, 16 states have (on average 10.25) internal successors, (164), 10 states have internal predecessors, (164), 4 states have call successors, (30), 7 states have call predecessors, (30), 4 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) [2022-07-14 01:22:24,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:22:36,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:22:36,734 INFO L93 Difference]: Finished difference Result 35977 states and 55032 transitions. [2022-07-14 01:22:36,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-14 01:22:36,735 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 10.25) internal successors, (164), 10 states have internal predecessors, (164), 4 states have call successors, (30), 7 states have call predecessors, (30), 4 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) Word has length 383 [2022-07-14 01:22:36,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:22:36,844 INFO L225 Difference]: With dead ends: 35977 [2022-07-14 01:22:36,845 INFO L226 Difference]: Without dead ends: 21270 [2022-07-14 01:22:36,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=155, Invalid=775, Unknown=0, NotChecked=0, Total=930 [2022-07-14 01:22:36,952 INFO L413 NwaCegarLoop]: 2009 mSDtfsCounter, 3008 mSDsluCounter, 16254 mSDsCounter, 0 mSdLazyCounter, 11553 mSolverCounterSat, 1333 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3070 SdHoareTripleChecker+Valid, 18263 SdHoareTripleChecker+Invalid, 12887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1333 IncrementalHoareTripleChecker+Valid, 11553 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:22:36,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3070 Valid, 18263 Invalid, 12887 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1333 Valid, 11553 Invalid, 1 Unknown, 0 Unchecked, 15.2s Time] [2022-07-14 01:22:36,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21270 states. [2022-07-14 01:22:38,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21270 to 14812. [2022-07-14 01:22:38,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14812 states, 11738 states have (on average 1.446413358323394) internal successors, (16978), 11883 states have internal predecessors, (16978), 2588 states have call successors, (2588), 492 states have call predecessors, (2588), 485 states have return successors, (2586), 2514 states have call predecessors, (2586), 2586 states have call successors, (2586) [2022-07-14 01:22:38,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14812 states to 14812 states and 22152 transitions. [2022-07-14 01:22:38,131 INFO L78 Accepts]: Start accepts. Automaton has 14812 states and 22152 transitions. Word has length 383 [2022-07-14 01:22:38,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:22:38,132 INFO L495 AbstractCegarLoop]: Abstraction has 14812 states and 22152 transitions. [2022-07-14 01:22:38,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 10.25) internal successors, (164), 10 states have internal predecessors, (164), 4 states have call successors, (30), 7 states have call predecessors, (30), 4 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) [2022-07-14 01:22:38,133 INFO L276 IsEmpty]: Start isEmpty. Operand 14812 states and 22152 transitions. [2022-07-14 01:22:38,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-07-14 01:22:38,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:22:38,159 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:22:38,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-14 01:22:38,159 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:22:38,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:22:38,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1642650605, now seen corresponding path program 1 times [2022-07-14 01:22:38,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:22:38,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503678416] [2022-07-14 01:22:38,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:22:38,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:22:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:22:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:22:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:22:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:22:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:22:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:22:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:22:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:22:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:22:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:22:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:22:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:22:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:22:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:22:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:22:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 01:22:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 01:22:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-14 01:22:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-14 01:22:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-07-14 01:22:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-14 01:22:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-07-14 01:22:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-14 01:22:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-07-14 01:22:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-07-14 01:22:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:38,853 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-14 01:22:38,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:22:38,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503678416] [2022-07-14 01:22:38,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503678416] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:22:38,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:22:38,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-14 01:22:38,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250971461] [2022-07-14 01:22:38,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:22:38,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 01:22:38,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:22:38,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 01:22:38,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:22:38,859 INFO L87 Difference]: Start difference. First operand 14812 states and 22152 transitions. Second operand has 14 states, 14 states have (on average 12.142857142857142) internal successors, (170), 7 states have internal predecessors, (170), 2 states have call successors, (30), 8 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:22:42,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:22:43,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:22:53,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:22:53,921 INFO L93 Difference]: Finished difference Result 41701 states and 64026 transitions. [2022-07-14 01:22:53,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 01:22:53,921 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.142857142857142) internal successors, (170), 7 states have internal predecessors, (170), 2 states have call successors, (30), 8 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 389 [2022-07-14 01:22:53,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:22:54,027 INFO L225 Difference]: With dead ends: 41701 [2022-07-14 01:22:54,027 INFO L226 Difference]: Without dead ends: 26946 [2022-07-14 01:22:54,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2022-07-14 01:22:54,067 INFO L413 NwaCegarLoop]: 2018 mSDtfsCounter, 6216 mSDsluCounter, 9107 mSDsCounter, 0 mSdLazyCounter, 6937 mSolverCounterSat, 2427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6217 SdHoareTripleChecker+Valid, 11125 SdHoareTripleChecker+Invalid, 9364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2427 IncrementalHoareTripleChecker+Valid, 6937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:22:54,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6217 Valid, 11125 Invalid, 9364 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2427 Valid, 6937 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2022-07-14 01:22:54,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26946 states. [2022-07-14 01:22:55,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26946 to 14896. [2022-07-14 01:22:55,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14896 states, 11810 states have (on average 1.443691786621507) internal successors, (17050), 11955 states have internal predecessors, (17050), 2588 states have call successors, (2588), 492 states have call predecessors, (2588), 497 states have return successors, (2646), 2526 states have call predecessors, (2646), 2586 states have call successors, (2646) [2022-07-14 01:22:55,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14896 states to 14896 states and 22284 transitions. [2022-07-14 01:22:55,440 INFO L78 Accepts]: Start accepts. Automaton has 14896 states and 22284 transitions. Word has length 389 [2022-07-14 01:22:55,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:22:55,440 INFO L495 AbstractCegarLoop]: Abstraction has 14896 states and 22284 transitions. [2022-07-14 01:22:55,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.142857142857142) internal successors, (170), 7 states have internal predecessors, (170), 2 states have call successors, (30), 8 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 01:22:55,441 INFO L276 IsEmpty]: Start isEmpty. Operand 14896 states and 22284 transitions. [2022-07-14 01:22:55,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-07-14 01:22:55,474 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:22:55,475 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:22:55,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-14 01:22:55,475 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:22:55,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:22:55,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1111222843, now seen corresponding path program 1 times [2022-07-14 01:22:55,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:22:55,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913084880] [2022-07-14 01:22:55,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:22:55,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:22:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:55,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:22:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:55,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:55,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:55,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:55,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:22:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:55,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:55,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:55,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:22:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:55,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:55,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:55,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:22:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:22:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:22:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:22:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:22:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:22:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:22:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:22:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:22:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:22:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:22:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:22:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 01:22:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:22:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 01:22:56,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-14 01:22:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-14 01:22:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-07-14 01:22:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-14 01:22:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:22:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-14 01:22:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-14 01:22:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-14 01:22:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-07-14 01:22:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-14 01:22:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:22:56,497 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-14 01:22:56,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:22:56,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913084880] [2022-07-14 01:22:56,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913084880] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:22:56,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:22:56,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-14 01:22:56,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637082717] [2022-07-14 01:22:56,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:22:56,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-14 01:22:56,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:22:56,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-14 01:22:56,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-07-14 01:22:56,500 INFO L87 Difference]: Start difference. First operand 14896 states and 22284 transitions. Second operand has 19 states, 17 states have (on average 10.117647058823529) internal successors, (172), 10 states have internal predecessors, (172), 4 states have call successors, (31), 8 states have call predecessors, (31), 4 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-14 01:23:01,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:23:03,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:23:05,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:23:22,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:23:22,664 INFO L93 Difference]: Finished difference Result 36217 states and 55344 transitions. [2022-07-14 01:23:22,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-14 01:23:22,665 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 10.117647058823529) internal successors, (172), 10 states have internal predecessors, (172), 4 states have call successors, (31), 8 states have call predecessors, (31), 4 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) Word has length 393 [2022-07-14 01:23:22,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:23:22,734 INFO L225 Difference]: With dead ends: 36217 [2022-07-14 01:23:22,734 INFO L226 Difference]: Without dead ends: 21378 [2022-07-14 01:23:22,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992 [2022-07-14 01:23:22,769 INFO L413 NwaCegarLoop]: 2013 mSDtfsCounter, 3003 mSDsluCounter, 18131 mSDsCounter, 0 mSdLazyCounter, 12612 mSolverCounterSat, 1326 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3066 SdHoareTripleChecker+Valid, 20144 SdHoareTripleChecker+Invalid, 13939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1326 IncrementalHoareTripleChecker+Valid, 12612 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2022-07-14 01:23:22,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3066 Valid, 20144 Invalid, 13939 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1326 Valid, 12612 Invalid, 1 Unknown, 0 Unchecked, 23.8s Time] [2022-07-14 01:23:22,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21378 states. [2022-07-14 01:23:23,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21378 to 14896. [2022-07-14 01:23:23,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14896 states, 11810 states have (on average 1.443691786621507) internal successors, (17050), 11955 states have internal predecessors, (17050), 2588 states have call successors, (2588), 492 states have call predecessors, (2588), 497 states have return successors, (2646), 2526 states have call predecessors, (2646), 2586 states have call successors, (2646) [2022-07-14 01:23:23,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14896 states to 14896 states and 22284 transitions. [2022-07-14 01:23:23,991 INFO L78 Accepts]: Start accepts. Automaton has 14896 states and 22284 transitions. Word has length 393 [2022-07-14 01:23:23,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:23:23,992 INFO L495 AbstractCegarLoop]: Abstraction has 14896 states and 22284 transitions. [2022-07-14 01:23:23,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 10.117647058823529) internal successors, (172), 10 states have internal predecessors, (172), 4 states have call successors, (31), 8 states have call predecessors, (31), 4 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-14 01:23:23,993 INFO L276 IsEmpty]: Start isEmpty. Operand 14896 states and 22284 transitions. [2022-07-14 01:23:24,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2022-07-14 01:23:24,015 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:23:24,015 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:23:24,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-14 01:23:24,016 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:23:24,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:23:24,016 INFO L85 PathProgramCache]: Analyzing trace with hash -915463513, now seen corresponding path program 1 times [2022-07-14 01:23:24,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:23:24,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648553743] [2022-07-14 01:23:24,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:23:24,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:23:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:23:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:23:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:23:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:23:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:23:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:23:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:23:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:23:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:25,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:23:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:23:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:23:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:23:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:23:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:23:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:23:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 01:23:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 01:23:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-14 01:23:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-14 01:23:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:23:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 01:23:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 01:23:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-14 01:23:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-14 01:23:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-07-14 01:23:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-14 01:23:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-07-14 01:23:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-07-14 01:23:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:26,215 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-07-14 01:23:26,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:23:26,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648553743] [2022-07-14 01:23:26,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648553743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:23:26,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:23:26,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 01:23:26,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072639090] [2022-07-14 01:23:26,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:23:26,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 01:23:26,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:23:26,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 01:23:26,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-14 01:23:26,221 INFO L87 Difference]: Start difference. First operand 14896 states and 22284 transitions. Second operand has 10 states, 10 states have (on average 17.1) internal successors, (171), 4 states have internal predecessors, (171), 3 states have call successors, (33), 8 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-14 01:23:29,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:23:31,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:23:39,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:23:39,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:23:39,807 INFO L93 Difference]: Finished difference Result 33273 states and 50389 transitions. [2022-07-14 01:23:39,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 01:23:39,808 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 4 states have internal predecessors, (171), 3 states have call successors, (33), 8 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 409 [2022-07-14 01:23:39,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:23:39,872 INFO L225 Difference]: With dead ends: 33273 [2022-07-14 01:23:39,873 INFO L226 Difference]: Without dead ends: 18434 [2022-07-14 01:23:39,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:23:39,911 INFO L413 NwaCegarLoop]: 1908 mSDtfsCounter, 2242 mSDsluCounter, 5679 mSDsCounter, 0 mSdLazyCounter, 2933 mSolverCounterSat, 878 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2364 SdHoareTripleChecker+Valid, 7587 SdHoareTripleChecker+Invalid, 3812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 878 IncrementalHoareTripleChecker+Valid, 2933 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:23:39,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2364 Valid, 7587 Invalid, 3812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [878 Valid, 2933 Invalid, 1 Unknown, 0 Unchecked, 12.1s Time] [2022-07-14 01:23:39,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18434 states. [2022-07-14 01:23:40,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18434 to 14908. [2022-07-14 01:23:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14908 states, 11822 states have (on average 1.4432414143122991) internal successors, (17062), 11967 states have internal predecessors, (17062), 2588 states have call successors, (2588), 492 states have call predecessors, (2588), 497 states have return successors, (2646), 2526 states have call predecessors, (2646), 2586 states have call successors, (2646) [2022-07-14 01:23:41,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14908 states to 14908 states and 22296 transitions. [2022-07-14 01:23:41,029 INFO L78 Accepts]: Start accepts. Automaton has 14908 states and 22296 transitions. Word has length 409 [2022-07-14 01:23:41,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:23:41,029 INFO L495 AbstractCegarLoop]: Abstraction has 14908 states and 22296 transitions. [2022-07-14 01:23:41,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 4 states have internal predecessors, (171), 3 states have call successors, (33), 8 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-14 01:23:41,029 INFO L276 IsEmpty]: Start isEmpty. Operand 14908 states and 22296 transitions. [2022-07-14 01:23:41,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2022-07-14 01:23:41,049 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:23:41,050 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:23:41,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-14 01:23:41,050 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:23:41,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:23:41,051 INFO L85 PathProgramCache]: Analyzing trace with hash 557008273, now seen corresponding path program 1 times [2022-07-14 01:23:41,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:23:41,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272409113] [2022-07-14 01:23:41,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:23:41,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:23:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:41,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:23:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:41,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:41,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:41,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:23:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:41,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:41,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:41,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:23:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:41,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:41,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:41,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:23:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:41,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:41,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:41,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:23:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:41,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:41,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 01:23:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 01:23:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:23:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:23:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:23:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:23:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 01:23:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:23:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:23:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 01:23:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 01:23:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:23:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 01:23:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-14 01:23:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-14 01:23:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:23:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 01:23:42,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 01:23:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-14 01:23:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:23:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-14 01:23:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-14 01:23:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-14 01:23:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-07-14 01:23:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-07-14 01:23:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:23:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked. [2022-07-14 01:23:42,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:23:42,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272409113] [2022-07-14 01:23:42,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272409113] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:23:42,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264294343] [2022-07-14 01:23:42,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:23:42,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:23:42,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:23:42,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 01:23:42,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process