./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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/aws-c-common/aws_byte_buf_advance_harness.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 9a96b91703f0cc76adc9b0fdbd8386a96920c1be21a810b6415a59c2166f1461 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 12:01:28,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 12:01:28,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 12:01:29,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 12:01:29,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 12:01:29,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 12:01:29,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 12:01:29,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 12:01:29,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 12:01:29,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 12:01:29,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 12:01:29,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 12:01:29,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 12:01:29,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 12:01:29,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 12:01:29,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 12:01:29,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 12:01:29,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 12:01:29,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 12:01:29,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 12:01:29,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 12:01:29,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 12:01:29,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 12:01:29,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 12:01:29,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 12:01:29,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 12:01:29,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 12:01:29,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 12:01:29,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 12:01:29,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 12:01:29,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 12:01:29,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 12:01:29,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 12:01:29,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 12:01:29,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 12:01:29,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 12:01:29,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 12:01:29,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 12:01:29,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 12:01:29,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 12:01:29,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 12:01:29,065 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 12:01:29,087 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 12:01:29,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 12:01:29,090 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 12:01:29,090 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 12:01:29,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 12:01:29,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 12:01:29,091 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 12:01:29,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 12:01:29,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 12:01:29,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 12:01:29,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 12:01:29,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 12:01:29,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 12:01:29,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 12:01:29,092 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 12:01:29,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 12:01:29,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 12:01:29,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 12:01:29,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 12:01:29,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:01:29,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 12:01:29,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 12:01:29,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 12:01:29,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 12:01:29,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 12:01:29,102 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 12:01:29,102 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 12:01:29,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 12:01:29,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 12:01:29,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a96b91703f0cc76adc9b0fdbd8386a96920c1be21a810b6415a59c2166f1461 [2021-11-05 12:01:29,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 12:01:29,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 12:01:29,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 12:01:29,390 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 12:01:29,391 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 12:01:29,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2021-11-05 12:01:29,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3d9ebd45/fd4339099a9a4788baf8fbaba17fa953/FLAG2416b9356 [2021-11-05 12:01:30,089 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 12:01:30,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2021-11-05 12:01:30,116 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3d9ebd45/fd4339099a9a4788baf8fbaba17fa953/FLAG2416b9356 [2021-11-05 12:01:30,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3d9ebd45/fd4339099a9a4788baf8fbaba17fa953 [2021-11-05 12:01:30,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 12:01:30,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 12:01:30,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 12:01:30,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 12:01:30,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 12:01:30,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:01:30" (1/1) ... [2021-11-05 12:01:30,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26eb3cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:30, skipping insertion in model container [2021-11-05 12:01:30,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:01:30" (1/1) ... [2021-11-05 12:01:30,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 12:01:30,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 12:01:30,566 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4494,4507] [2021-11-05 12:01:30,575 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4554,4567] [2021-11-05 12:01:30,596 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:01:30,601 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:01:31,060 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,061 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,061 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,062 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,062 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,069 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,070 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,282 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:01:31,284 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:01:31,285 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:01:31,286 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:01:31,286 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:01:31,287 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:01:31,287 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:01:31,289 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:01:31,289 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:01:31,290 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:01:31,378 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:01:31,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,470 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:01:31,577 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 12:01:31,605 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4494,4507] [2021-11-05 12:01:31,607 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i[4554,4567] [2021-11-05 12:01:31,637 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:01:31,638 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:01:31,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,673 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,709 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:01:31,709 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:01:31,710 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:01:31,710 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:01:31,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:01:31,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:01:31,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:01:31,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:01:31,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:01:31,715 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:01:31,731 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:01:31,799 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,800 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:31,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:01:32,018 INFO L208 MainTranslator]: Completed translation [2021-11-05 12:01:32,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:32 WrapperNode [2021-11-05 12:01:32,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 12:01:32,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 12:01:32,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 12:01:32,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 12:01:32,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:32" (1/1) ... [2021-11-05 12:01:32,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:32" (1/1) ... [2021-11-05 12:01:32,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 12:01:32,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 12:01:32,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 12:01:32,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 12:01:32,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:32" (1/1) ... [2021-11-05 12:01:32,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:32" (1/1) ... [2021-11-05 12:01:32,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:32" (1/1) ... [2021-11-05 12:01:32,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:32" (1/1) ... [2021-11-05 12:01:32,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:32" (1/1) ... [2021-11-05 12:01:32,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:32" (1/1) ... [2021-11-05 12:01:32,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:32" (1/1) ... [2021-11-05 12:01:32,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 12:01:32,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 12:01:32,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 12:01:32,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 12:01:32,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:32" (1/1) ... [2021-11-05 12:01:32,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:01:32,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:32,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 12:01:32,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 12:01:32,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 12:01:32,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 12:01:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 12:01:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 12:01:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 12:01:32,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 12:01:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 12:01:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 12:01:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 12:01:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 12:01:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 12:01:40,084 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 12:01:40,085 INFO L299 CfgBuilder]: Removed 139 assume(true) statements. [2021-11-05 12:01:40,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:01:40 BoogieIcfgContainer [2021-11-05 12:01:40,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 12:01:40,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 12:01:40,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 12:01:40,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 12:01:40,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 12:01:30" (1/3) ... [2021-11-05 12:01:40,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531c76a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:01:40, skipping insertion in model container [2021-11-05 12:01:40,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:32" (2/3) ... [2021-11-05 12:01:40,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531c76a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:01:40, skipping insertion in model container [2021-11-05 12:01:40,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:01:40" (3/3) ... [2021-11-05 12:01:40,092 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_advance_harness.i [2021-11-05 12:01:40,095 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 12:01:40,095 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2021-11-05 12:01:40,125 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 12:01:40,129 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 12:01:40,129 INFO L340 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2021-11-05 12:01:40,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 329 states, 305 states have (on average 1.4950819672131148) internal successors, (456), 328 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:40,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-05 12:01:40,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:40,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:40,149 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:01:40,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:40,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1060108463, now seen corresponding path program 1 times [2021-11-05 12:01:40,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:40,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246977869] [2021-11-05 12:01:40,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:40,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:40,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:40,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:40,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246977869] [2021-11-05 12:01:40,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246977869] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:40,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:40,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 12:01:40,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123656438] [2021-11-05 12:01:40,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:40,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 12:01:40,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:40,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 12:01:40,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:01:40,637 INFO L87 Difference]: Start difference. First operand has 329 states, 305 states have (on average 1.4950819672131148) internal successors, (456), 328 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:40,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:40,663 INFO L93 Difference]: Finished difference Result 654 states and 907 transitions. [2021-11-05 12:01:40,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 12:01:40,665 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-05 12:01:40,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:40,674 INFO L225 Difference]: With dead ends: 654 [2021-11-05 12:01:40,674 INFO L226 Difference]: Without dead ends: 324 [2021-11-05 12:01:40,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:01:40,678 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:40,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 2.48ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 12:01:40,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-11-05 12:01:40,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2021-11-05 12:01:40,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 301 states have (on average 1.3754152823920265) internal successors, (414), 323 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:40,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 414 transitions. [2021-11-05 12:01:40,712 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 414 transitions. Word has length 40 [2021-11-05 12:01:40,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:40,713 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 414 transitions. [2021-11-05 12:01:40,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:40,713 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 414 transitions. [2021-11-05 12:01:40,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-05 12:01:40,714 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:40,714 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:40,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 12:01:40,715 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:01:40,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:40,716 INFO L85 PathProgramCache]: Analyzing trace with hash 187425810, now seen corresponding path program 1 times [2021-11-05 12:01:40,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:40,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823190977] [2021-11-05 12:01:40,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:40,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:40,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:41,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:41,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823190977] [2021-11-05 12:01:41,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823190977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:41,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:41,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:01:41,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061072032] [2021-11-05 12:01:41,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:41,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:01:41,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:41,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:01:41,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:01:41,003 INFO L87 Difference]: Start difference. First operand 324 states and 414 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:41,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:41,307 INFO L93 Difference]: Finished difference Result 622 states and 794 transitions. [2021-11-05 12:01:41,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 12:01:41,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-05 12:01:41,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:41,310 INFO L225 Difference]: With dead ends: 622 [2021-11-05 12:01:41,310 INFO L226 Difference]: Without dead ends: 324 [2021-11-05 12:01:41,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.15ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:01:41,312 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 390 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 236.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.97ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 277.35ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:41,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 561 Invalid, 73 Unknown, 0 Unchecked, 4.97ms Time], IncrementalHoareTripleChecker [12 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 277.35ms Time] [2021-11-05 12:01:41,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-11-05 12:01:41,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2021-11-05 12:01:41,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 301 states have (on average 1.3654485049833887) internal successors, (411), 323 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:41,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 411 transitions. [2021-11-05 12:01:41,323 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 411 transitions. Word has length 42 [2021-11-05 12:01:41,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:41,324 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 411 transitions. [2021-11-05 12:01:41,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:41,324 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 411 transitions. [2021-11-05 12:01:41,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-05 12:01:41,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:41,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:41,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 12:01:41,326 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:01:41,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:41,326 INFO L85 PathProgramCache]: Analyzing trace with hash -646967702, now seen corresponding path program 1 times [2021-11-05 12:01:41,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:41,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000517751] [2021-11-05 12:01:41,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:41,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:41,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:41,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:41,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000517751] [2021-11-05 12:01:41,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000517751] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:41,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:41,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:01:41,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367589800] [2021-11-05 12:01:41,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:41,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:01:41,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:41,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:01:41,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:01:41,574 INFO L87 Difference]: Start difference. First operand 324 states and 411 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:42,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:42,215 INFO L93 Difference]: Finished difference Result 733 states and 944 transitions. [2021-11-05 12:01:42,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:01:42,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-05 12:01:42,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:42,217 INFO L225 Difference]: With dead ends: 733 [2021-11-05 12:01:42,217 INFO L226 Difference]: Without dead ends: 434 [2021-11-05 12:01:42,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.07ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:01:42,219 INFO L933 BasicCegarLoop]: 488 mSDtfsCounter, 256 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 529.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.79ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 590.22ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:42,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 1079 Invalid, 224 Unknown, 0 Unchecked, 5.79ms Time], IncrementalHoareTripleChecker [41 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 590.22ms Time] [2021-11-05 12:01:42,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-11-05 12:01:42,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 346. [2021-11-05 12:01:42,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 323 states have (on average 1.3405572755417956) internal successors, (433), 345 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:42,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 433 transitions. [2021-11-05 12:01:42,240 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 433 transitions. Word has length 54 [2021-11-05 12:01:42,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:42,240 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 433 transitions. [2021-11-05 12:01:42,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:42,241 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 433 transitions. [2021-11-05 12:01:42,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-05 12:01:42,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:42,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:42,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 12:01:42,243 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:01:42,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:42,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1198399464, now seen corresponding path program 1 times [2021-11-05 12:01:42,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:42,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942686500] [2021-11-05 12:01:42,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:42,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:42,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:42,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:42,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942686500] [2021-11-05 12:01:42,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942686500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:42,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:42,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:01:42,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462098255] [2021-11-05 12:01:42,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:42,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:01:42,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:42,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:01:42,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:01:42,465 INFO L87 Difference]: Start difference. First operand 346 states and 433 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:42,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:42,681 INFO L93 Difference]: Finished difference Result 512 states and 631 transitions. [2021-11-05 12:01:42,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:01:42,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-05 12:01:42,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:42,683 INFO L225 Difference]: With dead ends: 512 [2021-11-05 12:01:42,683 INFO L226 Difference]: Without dead ends: 346 [2021-11-05 12:01:42,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.56ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:01:42,684 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 214 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 164.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.20ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 179.61ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:42,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 958 Invalid, 55 Unknown, 0 Unchecked, 2.20ms Time], IncrementalHoareTripleChecker [10 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 179.61ms Time] [2021-11-05 12:01:42,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2021-11-05 12:01:42,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2021-11-05 12:01:42,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 323 states have (on average 1.3374613003095974) internal successors, (432), 345 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:42,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 432 transitions. [2021-11-05 12:01:42,692 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 432 transitions. Word has length 54 [2021-11-05 12:01:42,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:42,696 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 432 transitions. [2021-11-05 12:01:42,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:42,696 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 432 transitions. [2021-11-05 12:01:42,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-05 12:01:42,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:42,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:42,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 12:01:42,698 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:01:42,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:42,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1933084325, now seen corresponding path program 1 times [2021-11-05 12:01:42,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:42,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543839090] [2021-11-05 12:01:42,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:42,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:42,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:42,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:42,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543839090] [2021-11-05 12:01:42,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543839090] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:42,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:42,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:01:42,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374652102] [2021-11-05 12:01:42,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:42,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:01:42,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:42,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:01:42,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:01:42,975 INFO L87 Difference]: Start difference. First operand 346 states and 432 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:43,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:43,379 INFO L93 Difference]: Finished difference Result 632 states and 788 transitions. [2021-11-05 12:01:43,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:01:43,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-05 12:01:43,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:43,381 INFO L225 Difference]: With dead ends: 632 [2021-11-05 12:01:43,381 INFO L226 Difference]: Without dead ends: 346 [2021-11-05 12:01:43,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 120.30ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:01:43,382 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 883 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 277.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.68ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 316.47ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:43,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [883 Valid, 620 Invalid, 83 Unknown, 0 Unchecked, 3.68ms Time], IncrementalHoareTripleChecker [14 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 316.47ms Time] [2021-11-05 12:01:43,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2021-11-05 12:01:43,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2021-11-05 12:01:43,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 323 states have (on average 1.3219814241486068) internal successors, (427), 345 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:43,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 427 transitions. [2021-11-05 12:01:43,390 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 427 transitions. Word has length 58 [2021-11-05 12:01:43,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:43,390 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 427 transitions. [2021-11-05 12:01:43,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:43,391 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 427 transitions. [2021-11-05 12:01:43,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-05 12:01:43,399 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:43,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:43,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 12:01:43,400 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:01:43,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:43,402 INFO L85 PathProgramCache]: Analyzing trace with hash -851585648, now seen corresponding path program 1 times [2021-11-05 12:01:43,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:43,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991438013] [2021-11-05 12:01:43,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:43,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:43,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:43,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:43,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991438013] [2021-11-05 12:01:43,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991438013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:43,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:43,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:01:43,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845359866] [2021-11-05 12:01:43,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:43,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:01:43,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:43,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:01:43,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:01:43,673 INFO L87 Difference]: Start difference. First operand 346 states and 427 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:44,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:44,014 INFO L93 Difference]: Finished difference Result 517 states and 627 transitions. [2021-11-05 12:01:44,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:01:44,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-05 12:01:44,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:44,016 INFO L225 Difference]: With dead ends: 517 [2021-11-05 12:01:44,016 INFO L226 Difference]: Without dead ends: 346 [2021-11-05 12:01:44,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 119.55ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:01:44,017 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 859 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 230.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.91ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 251.21ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:44,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [859 Valid, 622 Invalid, 74 Unknown, 0 Unchecked, 2.91ms Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 251.21ms Time] [2021-11-05 12:01:44,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2021-11-05 12:01:44,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2021-11-05 12:01:44,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 323 states have (on average 1.3157894736842106) internal successors, (425), 345 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:44,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 425 transitions. [2021-11-05 12:01:44,023 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 425 transitions. Word has length 64 [2021-11-05 12:01:44,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:44,024 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 425 transitions. [2021-11-05 12:01:44,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:44,024 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 425 transitions. [2021-11-05 12:01:44,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-05 12:01:44,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:44,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:44,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 12:01:44,025 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:01:44,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:44,026 INFO L85 PathProgramCache]: Analyzing trace with hash -404020686, now seen corresponding path program 1 times [2021-11-05 12:01:44,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:44,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349535736] [2021-11-05 12:01:44,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:44,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:44,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:44,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:44,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349535736] [2021-11-05 12:01:44,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349535736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:44,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:44,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 12:01:44,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050009495] [2021-11-05 12:01:44,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:44,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 12:01:44,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:44,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 12:01:44,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:01:44,630 INFO L87 Difference]: Start difference. First operand 346 states and 425 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:45,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:45,879 INFO L93 Difference]: Finished difference Result 606 states and 721 transitions. [2021-11-05 12:01:45,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 12:01:45,880 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-05 12:01:45,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:45,882 INFO L225 Difference]: With dead ends: 606 [2021-11-05 12:01:45,882 INFO L226 Difference]: Without dead ends: 585 [2021-11-05 12:01:45,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 248.63ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:01:45,883 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 497 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 950.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.71ms SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1050.94ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:45,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 1496 Invalid, 410 Unknown, 0 Unchecked, 6.71ms Time], IncrementalHoareTripleChecker [100 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 1050.94ms Time] [2021-11-05 12:01:45,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2021-11-05 12:01:45,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 368. [2021-11-05 12:01:45,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 345 states have (on average 1.2927536231884058) internal successors, (446), 367 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:45,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 446 transitions. [2021-11-05 12:01:45,890 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 446 transitions. Word has length 66 [2021-11-05 12:01:45,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:45,891 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 446 transitions. [2021-11-05 12:01:45,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:45,891 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 446 transitions. [2021-11-05 12:01:45,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-05 12:01:45,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:45,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:45,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 12:01:45,892 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:01:45,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:45,893 INFO L85 PathProgramCache]: Analyzing trace with hash -38404312, now seen corresponding path program 1 times [2021-11-05 12:01:45,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:45,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469693878] [2021-11-05 12:01:45,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:45,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:46,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:46,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:46,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469693878] [2021-11-05 12:01:46,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469693878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:46,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:46,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:01:46,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213744921] [2021-11-05 12:01:46,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:46,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:01:46,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:46,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:01:46,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:01:46,372 INFO L87 Difference]: Start difference. First operand 368 states and 446 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:48,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:01:50,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:50,775 INFO L93 Difference]: Finished difference Result 1125 states and 1364 transitions. [2021-11-05 12:01:50,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:01:50,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-05 12:01:50,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:50,779 INFO L225 Difference]: With dead ends: 1125 [2021-11-05 12:01:50,780 INFO L226 Difference]: Without dead ends: 779 [2021-11-05 12:01:50,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 143.00ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:01:50,782 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 1024 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3910.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.63ms SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4213.43ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:50,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1024 Valid, 873 Invalid, 508 Unknown, 0 Unchecked, 12.63ms Time], IncrementalHoareTripleChecker [63 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 4213.43ms Time] [2021-11-05 12:01:50,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2021-11-05 12:01:50,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 443. [2021-11-05 12:01:50,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 420 states have (on average 1.2904761904761906) internal successors, (542), 442 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:50,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 542 transitions. [2021-11-05 12:01:50,796 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 542 transitions. Word has length 70 [2021-11-05 12:01:50,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:50,796 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 542 transitions. [2021-11-05 12:01:50,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:50,797 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 542 transitions. [2021-11-05 12:01:50,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-05 12:01:50,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:50,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:50,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 12:01:50,798 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:01:50,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:50,798 INFO L85 PathProgramCache]: Analyzing trace with hash 641654058, now seen corresponding path program 1 times [2021-11-05 12:01:50,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:50,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708008043] [2021-11-05 12:01:50,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:50,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:51,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:51,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:51,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708008043] [2021-11-05 12:01:51,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708008043] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:51,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:51,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 12:01:51,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96619251] [2021-11-05 12:01:51,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:51,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 12:01:51,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:51,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 12:01:51,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:01:51,345 INFO L87 Difference]: Start difference. First operand 443 states and 542 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:53,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:01:55,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:55,070 INFO L93 Difference]: Finished difference Result 890 states and 1071 transitions. [2021-11-05 12:01:55,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:01:55,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-05 12:01:55,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:55,073 INFO L225 Difference]: With dead ends: 890 [2021-11-05 12:01:55,073 INFO L226 Difference]: Without dead ends: 679 [2021-11-05 12:01:55,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 213.50ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:01:55,074 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 270 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3363.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.63ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3551.49ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:55,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2199 Invalid, 330 Unknown, 0 Unchecked, 7.63ms Time], IncrementalHoareTripleChecker [4 Valid, 325 Invalid, 1 Unknown, 0 Unchecked, 3551.49ms Time] [2021-11-05 12:01:55,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2021-11-05 12:01:55,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 448. [2021-11-05 12:01:55,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 425 states have (on average 1.2894117647058823) internal successors, (548), 447 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:55,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 548 transitions. [2021-11-05 12:01:55,085 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 548 transitions. Word has length 70 [2021-11-05 12:01:55,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:55,086 INFO L470 AbstractCegarLoop]: Abstraction has 448 states and 548 transitions. [2021-11-05 12:01:55,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:55,086 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 548 transitions. [2021-11-05 12:01:55,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-05 12:01:55,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:55,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:55,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 12:01:55,087 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:01:55,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:55,087 INFO L85 PathProgramCache]: Analyzing trace with hash 383488620, now seen corresponding path program 1 times [2021-11-05 12:01:55,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:55,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560251923] [2021-11-05 12:01:55,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:55,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:58,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:58,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:58,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560251923] [2021-11-05 12:01:58,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560251923] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:58,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:58,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-05 12:01:58,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566198373] [2021-11-05 12:01:58,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:58,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 12:01:58,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:58,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 12:01:58,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:01:58,115 INFO L87 Difference]: Start difference. First operand 448 states and 548 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:00,178 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:03,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:02:03,111 INFO L93 Difference]: Finished difference Result 1411 states and 1740 transitions. [2021-11-05 12:02:03,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-05 12:02:03,112 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-05 12:02:03,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:02:03,116 INFO L225 Difference]: With dead ends: 1411 [2021-11-05 12:02:03,117 INFO L226 Difference]: Without dead ends: 997 [2021-11-05 12:02:03,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 900.65ms TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-11-05 12:02:03,118 INFO L933 BasicCegarLoop]: 466 mSDtfsCounter, 1119 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4025.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 2612 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.51ms SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4302.39ms IncrementalHoareTripleChecker+Time [2021-11-05 12:02:03,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 2612 Invalid, 571 Unknown, 0 Unchecked, 12.51ms Time], IncrementalHoareTripleChecker [60 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 4302.39ms Time] [2021-11-05 12:02:03,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2021-11-05 12:02:03,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 444. [2021-11-05 12:02:03,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 421 states have (on average 1.2874109263657958) internal successors, (542), 443 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:03,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 542 transitions. [2021-11-05 12:02:03,131 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 542 transitions. Word has length 70 [2021-11-05 12:02:03,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:02:03,132 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 542 transitions. [2021-11-05 12:02:03,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:03,132 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 542 transitions. [2021-11-05 12:02:03,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-05 12:02:03,133 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:02:03,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:02:03,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 12:02:03,133 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:02:03,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:02:03,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1134921140, now seen corresponding path program 1 times [2021-11-05 12:02:03,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:02:03,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902786133] [2021-11-05 12:02:03,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:02:03,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:02:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:02:03,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:02:03,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:02:03,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902786133] [2021-11-05 12:02:03,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902786133] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:02:03,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:02:03,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 12:02:03,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779026782] [2021-11-05 12:02:03,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:02:03,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:02:03,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:02:03,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:02:03,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:02:03,810 INFO L87 Difference]: Start difference. First operand 444 states and 542 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:05,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:02:05,586 INFO L93 Difference]: Finished difference Result 1006 states and 1200 transitions. [2021-11-05 12:02:05,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 12:02:05,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-05 12:02:05,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:02:05,588 INFO L225 Difference]: With dead ends: 1006 [2021-11-05 12:02:05,588 INFO L226 Difference]: Without dead ends: 576 [2021-11-05 12:02:05,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 280.27ms TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:02:05,590 INFO L933 BasicCegarLoop]: 479 mSDtfsCounter, 225 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1480.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.88ms SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1604.49ms IncrementalHoareTripleChecker+Time [2021-11-05 12:02:05,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 2464 Invalid, 494 Unknown, 0 Unchecked, 6.88ms Time], IncrementalHoareTripleChecker [68 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 1604.49ms Time] [2021-11-05 12:02:05,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2021-11-05 12:02:05,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 444. [2021-11-05 12:02:05,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 421 states have (on average 1.2779097387173397) internal successors, (538), 443 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:05,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 538 transitions. [2021-11-05 12:02:05,603 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 538 transitions. Word has length 74 [2021-11-05 12:02:05,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:02:05,603 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 538 transitions. [2021-11-05 12:02:05,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:05,603 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 538 transitions. [2021-11-05 12:02:05,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-05 12:02:05,604 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:02:05,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:02:05,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 12:02:05,604 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:02:05,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:02:05,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1564613529, now seen corresponding path program 1 times [2021-11-05 12:02:05,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:02:05,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990732614] [2021-11-05 12:02:05,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:02:05,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:02:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:02:05,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:02:05,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:02:05,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990732614] [2021-11-05 12:02:05,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990732614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:02:05,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:02:05,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:02:05,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953123734] [2021-11-05 12:02:05,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:02:05,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:02:05,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:02:05,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:02:05,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:02:05,830 INFO L87 Difference]: Start difference. First operand 444 states and 538 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:06,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:02:06,564 INFO L93 Difference]: Finished difference Result 925 states and 1115 transitions. [2021-11-05 12:02:06,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:02:06,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-05 12:02:06,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:02:06,567 INFO L225 Difference]: With dead ends: 925 [2021-11-05 12:02:06,568 INFO L226 Difference]: Without dead ends: 486 [2021-11-05 12:02:06,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.47ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:02:06,570 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 67 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 621.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.76ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 669.72ms IncrementalHoareTripleChecker+Time [2021-11-05 12:02:06,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 1038 Invalid, 202 Unknown, 0 Unchecked, 2.76ms Time], IncrementalHoareTripleChecker [37 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 669.72ms Time] [2021-11-05 12:02:06,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2021-11-05 12:02:06,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 444. [2021-11-05 12:02:06,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 421 states have (on average 1.2494061757719714) internal successors, (526), 443 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:06,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 526 transitions. [2021-11-05 12:02:06,587 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 526 transitions. Word has length 76 [2021-11-05 12:02:06,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:02:06,587 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 526 transitions. [2021-11-05 12:02:06,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:06,587 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 526 transitions. [2021-11-05 12:02:06,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-05 12:02:06,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:02:06,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:02:06,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 12:02:06,589 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:02:06,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:02:06,589 INFO L85 PathProgramCache]: Analyzing trace with hash 713487837, now seen corresponding path program 1 times [2021-11-05 12:02:06,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:02:06,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477018281] [2021-11-05 12:02:06,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:02:06,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:02:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:02:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:02:09,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:02:09,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477018281] [2021-11-05 12:02:09,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477018281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:02:09,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:02:09,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-05 12:02:09,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129923281] [2021-11-05 12:02:09,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:02:09,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-05 12:02:09,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:02:09,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-05 12:02:09,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:02:09,134 INFO L87 Difference]: Start difference. First operand 444 states and 526 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:11,206 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:13,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:15,363 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:20,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:02:20,125 INFO L93 Difference]: Finished difference Result 1684 states and 2011 transitions. [2021-11-05 12:02:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-05 12:02:20,126 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-05 12:02:20,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:02:20,129 INFO L225 Difference]: With dead ends: 1684 [2021-11-05 12:02:20,129 INFO L226 Difference]: Without dead ends: 1326 [2021-11-05 12:02:20,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1571.34ms TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2021-11-05 12:02:20,131 INFO L933 BasicCegarLoop]: 637 mSDtfsCounter, 1534 mSDsluCounter, 2871 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 71 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9139.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 3508 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.03ms SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9627.87ms IncrementalHoareTripleChecker+Time [2021-11-05 12:02:20,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1534 Valid, 3508 Invalid, 950 Unknown, 0 Unchecked, 19.03ms Time], IncrementalHoareTripleChecker [71 Valid, 876 Invalid, 3 Unknown, 0 Unchecked, 9627.87ms Time] [2021-11-05 12:02:20,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2021-11-05 12:02:20,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 611. [2021-11-05 12:02:20,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 588 states have (on average 1.2687074829931972) internal successors, (746), 610 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:20,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 746 transitions. [2021-11-05 12:02:20,149 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 746 transitions. Word has length 76 [2021-11-05 12:02:20,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:02:20,149 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 746 transitions. [2021-11-05 12:02:20,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:20,149 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 746 transitions. [2021-11-05 12:02:20,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-05 12:02:20,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:02:20,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:02:20,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 12:02:20,150 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:02:20,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:02:20,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1591904584, now seen corresponding path program 1 times [2021-11-05 12:02:20,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:02:20,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853714891] [2021-11-05 12:02:20,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:02:20,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:02:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:02:21,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:02:21,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:02:21,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853714891] [2021-11-05 12:02:21,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853714891] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:02:21,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:02:21,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-05 12:02:21,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030662089] [2021-11-05 12:02:21,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:02:21,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 12:02:21,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:02:21,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 12:02:21,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:02:21,468 INFO L87 Difference]: Start difference. First operand 611 states and 746 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:23,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:28,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:02:28,746 INFO L93 Difference]: Finished difference Result 2599 states and 3121 transitions. [2021-11-05 12:02:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-05 12:02:28,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-05 12:02:28,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:02:28,754 INFO L225 Difference]: With dead ends: 2599 [2021-11-05 12:02:28,755 INFO L226 Difference]: Without dead ends: 2223 [2021-11-05 12:02:28,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1445.67ms TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2021-11-05 12:02:28,757 INFO L933 BasicCegarLoop]: 644 mSDtfsCounter, 2658 mSDsluCounter, 2354 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5580.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2658 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.32ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5974.60ms IncrementalHoareTripleChecker+Time [2021-11-05 12:02:28,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2658 Valid, 2998 Invalid, 931 Unknown, 0 Unchecked, 20.32ms Time], IncrementalHoareTripleChecker [48 Valid, 882 Invalid, 1 Unknown, 0 Unchecked, 5974.60ms Time] [2021-11-05 12:02:28,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2021-11-05 12:02:28,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 622. [2021-11-05 12:02:28,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 599 states have (on average 1.2654424040066778) internal successors, (758), 621 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:28,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 758 transitions. [2021-11-05 12:02:28,787 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 758 transitions. Word has length 79 [2021-11-05 12:02:28,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:02:28,788 INFO L470 AbstractCegarLoop]: Abstraction has 622 states and 758 transitions. [2021-11-05 12:02:28,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:28,788 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 758 transitions. [2021-11-05 12:02:28,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-05 12:02:28,789 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:02:28,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:02:28,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 12:02:28,789 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:02:28,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:02:28,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1158175498, now seen corresponding path program 1 times [2021-11-05 12:02:28,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:02:28,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286263129] [2021-11-05 12:02:28,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:02:28,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:02:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:02:30,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:02:30,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:02:30,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286263129] [2021-11-05 12:02:30,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286263129] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:02:30,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:02:30,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-05 12:02:30,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967726377] [2021-11-05 12:02:30,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:02:30,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-05 12:02:30,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:02:30,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-05 12:02:30,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-11-05 12:02:30,564 INFO L87 Difference]: Start difference. First operand 622 states and 758 transitions. Second operand has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:32,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:34,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:36,831 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:38,906 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:41,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:43,097 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:45,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:47,272 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:56,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:02:56,673 INFO L93 Difference]: Finished difference Result 2152 states and 2501 transitions. [2021-11-05 12:02:56,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-05 12:02:56,674 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-05 12:02:56,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:02:56,678 INFO L225 Difference]: With dead ends: 2152 [2021-11-05 12:02:56,678 INFO L226 Difference]: Without dead ends: 1545 [2021-11-05 12:02:56,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 2822.24ms TimeCoverageRelationStatistics Valid=327, Invalid=1005, Unknown=0, NotChecked=0, Total=1332 [2021-11-05 12:02:56,680 INFO L933 BasicCegarLoop]: 619 mSDtfsCounter, 3785 mSDsluCounter, 4167 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 127 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22511.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3785 SdHoareTripleChecker+Valid, 4786 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.39ms SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23776.19ms IncrementalHoareTripleChecker+Time [2021-11-05 12:02:56,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3785 Valid, 4786 Invalid, 1840 Unknown, 0 Unchecked, 34.39ms Time], IncrementalHoareTripleChecker [127 Valid, 1705 Invalid, 8 Unknown, 0 Unchecked, 23776.19ms Time] [2021-11-05 12:02:56,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2021-11-05 12:02:56,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 780. [2021-11-05 12:02:56,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 757 states have (on average 1.236459709379128) internal successors, (936), 779 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:56,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 936 transitions. [2021-11-05 12:02:56,707 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 936 transitions. Word has length 79 [2021-11-05 12:02:56,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:02:56,708 INFO L470 AbstractCegarLoop]: Abstraction has 780 states and 936 transitions. [2021-11-05 12:02:56,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:02:56,708 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 936 transitions. [2021-11-05 12:02:56,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 12:02:56,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:02:56,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:02:56,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-05 12:02:56,709 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:02:56,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:02:56,710 INFO L85 PathProgramCache]: Analyzing trace with hash -2003437362, now seen corresponding path program 1 times [2021-11-05 12:02:56,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:02:56,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319301156] [2021-11-05 12:02:56,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:02:56,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:02:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:02:58,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:02:58,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:02:58,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319301156] [2021-11-05 12:02:58,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319301156] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:02:58,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:02:58,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 12:02:58,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908368474] [2021-11-05 12:02:58,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:02:58,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:02:58,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:02:58,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:02:58,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:02:58,842 INFO L87 Difference]: Start difference. First operand 780 states and 936 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:00,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:02,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:03:02,547 INFO L93 Difference]: Finished difference Result 1025 states and 1213 transitions. [2021-11-05 12:03:02,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 12:03:02,547 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-05 12:03:02,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:03:02,550 INFO L225 Difference]: With dead ends: 1025 [2021-11-05 12:03:02,550 INFO L226 Difference]: Without dead ends: 816 [2021-11-05 12:03:02,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 347.68ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-05 12:03:02,551 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 94 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3274.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.82ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3456.02ms IncrementalHoareTripleChecker+Time [2021-11-05 12:03:02,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 1984 Invalid, 336 Unknown, 0 Unchecked, 6.82ms Time], IncrementalHoareTripleChecker [11 Valid, 324 Invalid, 1 Unknown, 0 Unchecked, 3456.02ms Time] [2021-11-05 12:03:02,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2021-11-05 12:03:02,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 782. [2021-11-05 12:03:02,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 759 states have (on average 1.2358366271409749) internal successors, (938), 781 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:02,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 938 transitions. [2021-11-05 12:03:02,571 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 938 transitions. Word has length 82 [2021-11-05 12:03:02,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:03:02,571 INFO L470 AbstractCegarLoop]: Abstraction has 782 states and 938 transitions. [2021-11-05 12:03:02,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:02,571 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 938 transitions. [2021-11-05 12:03:02,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 12:03:02,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:03:02,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:03:02,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-05 12:03:02,573 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:03:02,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:03:02,573 INFO L85 PathProgramCache]: Analyzing trace with hash 858519752, now seen corresponding path program 1 times [2021-11-05 12:03:02,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:03:02,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735100841] [2021-11-05 12:03:02,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:03:02,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:03:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:03:03,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:03:03,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:03:03,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735100841] [2021-11-05 12:03:03,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735100841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:03:03,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:03:03,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 12:03:03,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127474829] [2021-11-05 12:03:03,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:03:03,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:03:03,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:03:03,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:03:03,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:03:03,083 INFO L87 Difference]: Start difference. First operand 782 states and 938 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:05,161 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:07,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:03:07,733 INFO L93 Difference]: Finished difference Result 1215 states and 1430 transitions. [2021-11-05 12:03:07,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-05 12:03:07,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-05 12:03:07,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:03:07,736 INFO L225 Difference]: With dead ends: 1215 [2021-11-05 12:03:07,736 INFO L226 Difference]: Without dead ends: 1009 [2021-11-05 12:03:07,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 396.25ms TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-11-05 12:03:07,737 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 296 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4023.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 2477 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.49ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4301.73ms IncrementalHoareTripleChecker+Time [2021-11-05 12:03:07,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 2477 Invalid, 472 Unknown, 0 Unchecked, 8.49ms Time], IncrementalHoareTripleChecker [15 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 4301.73ms Time] [2021-11-05 12:03:07,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2021-11-05 12:03:07,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 782. [2021-11-05 12:03:07,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 759 states have (on average 1.2345191040843215) internal successors, (937), 781 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:07,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 937 transitions. [2021-11-05 12:03:07,757 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 937 transitions. Word has length 82 [2021-11-05 12:03:07,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:03:07,757 INFO L470 AbstractCegarLoop]: Abstraction has 782 states and 937 transitions. [2021-11-05 12:03:07,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:07,757 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 937 transitions. [2021-11-05 12:03:07,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 12:03:07,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:03:07,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:03:07,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-05 12:03:07,759 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:03:07,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:03:07,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1538578122, now seen corresponding path program 1 times [2021-11-05 12:03:07,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:03:07,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133337970] [2021-11-05 12:03:07,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:03:07,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:03:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:03:08,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:03:08,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:03:08,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133337970] [2021-11-05 12:03:08,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133337970] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:03:08,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:03:08,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:03:08,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364314640] [2021-11-05 12:03:08,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:03:08,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:03:08,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:03:08,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:03:08,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:03:08,212 INFO L87 Difference]: Start difference. First operand 782 states and 937 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:10,281 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:11,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:03:11,934 INFO L93 Difference]: Finished difference Result 1532 states and 1851 transitions. [2021-11-05 12:03:11,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:03:11,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-05 12:03:11,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:03:11,937 INFO L225 Difference]: With dead ends: 1532 [2021-11-05 12:03:11,938 INFO L226 Difference]: Without dead ends: 1086 [2021-11-05 12:03:11,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 112.02ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:03:11,939 INFO L933 BasicCegarLoop]: 518 mSDtfsCounter, 582 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3407.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.37ms SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3617.17ms IncrementalHoareTripleChecker+Time [2021-11-05 12:03:11,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [582 Valid, 1165 Invalid, 399 Unknown, 0 Unchecked, 6.37ms Time], IncrementalHoareTripleChecker [58 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 3617.17ms Time] [2021-11-05 12:03:11,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2021-11-05 12:03:11,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 782. [2021-11-05 12:03:11,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 759 states have (on average 1.2187088274044795) internal successors, (925), 781 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:11,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 925 transitions. [2021-11-05 12:03:11,960 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 925 transitions. Word has length 82 [2021-11-05 12:03:11,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:03:11,961 INFO L470 AbstractCegarLoop]: Abstraction has 782 states and 925 transitions. [2021-11-05 12:03:11,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:11,961 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 925 transitions. [2021-11-05 12:03:11,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 12:03:11,962 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:03:11,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:03:11,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-05 12:03:11,962 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:03:11,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:03:11,963 INFO L85 PathProgramCache]: Analyzing trace with hash -156924022, now seen corresponding path program 1 times [2021-11-05 12:03:11,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:03:11,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457316421] [2021-11-05 12:03:11,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:03:11,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:03:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:03:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:03:14,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:03:14,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457316421] [2021-11-05 12:03:14,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457316421] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:03:14,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:03:14,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-05 12:03:14,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955364645] [2021-11-05 12:03:14,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:03:14,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-05 12:03:14,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:03:14,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-05 12:03:14,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-11-05 12:03:14,492 INFO L87 Difference]: Start difference. First operand 782 states and 925 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:16,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:18,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:20,772 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:22,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:28,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:03:28,099 INFO L93 Difference]: Finished difference Result 1727 states and 1979 transitions. [2021-11-05 12:03:28,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-05 12:03:28,099 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-05 12:03:28,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:03:28,103 INFO L225 Difference]: With dead ends: 1727 [2021-11-05 12:03:28,103 INFO L226 Difference]: Without dead ends: 1288 [2021-11-05 12:03:28,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 2066.18ms TimeCoverageRelationStatistics Valid=283, Invalid=709, Unknown=0, NotChecked=0, Total=992 [2021-11-05 12:03:28,104 INFO L933 BasicCegarLoop]: 550 mSDtfsCounter, 2809 mSDsluCounter, 2422 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 83 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11212.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2809 SdHoareTripleChecker+Valid, 2972 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.46ms SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11836.48ms IncrementalHoareTripleChecker+Time [2021-11-05 12:03:28,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2809 Valid, 2972 Invalid, 916 Unknown, 0 Unchecked, 20.46ms Time], IncrementalHoareTripleChecker [83 Valid, 829 Invalid, 4 Unknown, 0 Unchecked, 11836.48ms Time] [2021-11-05 12:03:28,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2021-11-05 12:03:28,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 772. [2021-11-05 12:03:28,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 749 states have (on average 1.218958611481976) internal successors, (913), 771 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:28,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 913 transitions. [2021-11-05 12:03:28,126 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 913 transitions. Word has length 82 [2021-11-05 12:03:28,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:03:28,126 INFO L470 AbstractCegarLoop]: Abstraction has 772 states and 913 transitions. [2021-11-05 12:03:28,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:28,127 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 913 transitions. [2021-11-05 12:03:28,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-05 12:03:28,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:03:28,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:03:28,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-05 12:03:28,128 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:03:28,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:03:28,128 INFO L85 PathProgramCache]: Analyzing trace with hash -570347359, now seen corresponding path program 1 times [2021-11-05 12:03:28,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:03:28,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616716443] [2021-11-05 12:03:28,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:03:28,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:03:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:03:29,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:03:29,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:03:29,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616716443] [2021-11-05 12:03:29,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616716443] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:03:29,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:03:29,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-05 12:03:29,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793068292] [2021-11-05 12:03:29,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:03:29,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-05 12:03:29,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:03:29,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-05 12:03:29,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-11-05 12:03:29,926 INFO L87 Difference]: Start difference. First operand 772 states and 913 transitions. Second operand has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:31,986 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:34,092 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:36,202 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:38,332 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:40,410 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:48,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:03:48,257 INFO L93 Difference]: Finished difference Result 2506 states and 2950 transitions. [2021-11-05 12:03:48,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-05 12:03:48,257 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-05 12:03:48,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:03:48,262 INFO L225 Difference]: With dead ends: 2506 [2021-11-05 12:03:48,262 INFO L226 Difference]: Without dead ends: 1926 [2021-11-05 12:03:48,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2131.64ms TimeCoverageRelationStatistics Valid=301, Invalid=755, Unknown=0, NotChecked=0, Total=1056 [2021-11-05 12:03:48,264 INFO L933 BasicCegarLoop]: 780 mSDtfsCounter, 2565 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 127 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15566.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2565 SdHoareTripleChecker+Valid, 4047 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.70ms SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16506.32ms IncrementalHoareTripleChecker+Time [2021-11-05 12:03:48,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2565 Valid, 4047 Invalid, 1660 Unknown, 0 Unchecked, 25.70ms Time], IncrementalHoareTripleChecker [127 Valid, 1528 Invalid, 5 Unknown, 0 Unchecked, 16506.32ms Time] [2021-11-05 12:03:48,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2021-11-05 12:03:48,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1519. [2021-11-05 12:03:48,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1496 states have (on average 1.2386363636363635) internal successors, (1853), 1518 states have internal predecessors, (1853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:48,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 1853 transitions. [2021-11-05 12:03:48,307 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 1853 transitions. Word has length 85 [2021-11-05 12:03:48,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:03:48,308 INFO L470 AbstractCegarLoop]: Abstraction has 1519 states and 1853 transitions. [2021-11-05 12:03:48,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:48,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 1853 transitions. [2021-11-05 12:03:48,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-05 12:03:48,309 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:03:48,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:03:48,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-05 12:03:48,310 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:03:48,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:03:48,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1079820449, now seen corresponding path program 1 times [2021-11-05 12:03:48,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:03:48,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529796688] [2021-11-05 12:03:48,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:03:48,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:03:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:03:50,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:03:50,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:03:50,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529796688] [2021-11-05 12:03:50,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529796688] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:03:50,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:03:50,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-05 12:03:50,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118302505] [2021-11-05 12:03:50,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:03:50,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-05 12:03:50,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:03:50,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-05 12:03:50,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-05 12:03:50,648 INFO L87 Difference]: Start difference. First operand 1519 states and 1853 transitions. Second operand has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:03:52,720 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:54,808 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:56,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:58,994 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:04:01,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:04:09,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:04:09,651 INFO L93 Difference]: Finished difference Result 2634 states and 3055 transitions. [2021-11-05 12:04:09,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-05 12:04:09,651 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-05 12:04:09,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:04:09,656 INFO L225 Difference]: With dead ends: 2634 [2021-11-05 12:04:09,656 INFO L226 Difference]: Without dead ends: 2146 [2021-11-05 12:04:09,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 2338.41ms TimeCoverageRelationStatistics Valid=227, Invalid=529, Unknown=0, NotChecked=0, Total=756 [2021-11-05 12:04:09,657 INFO L933 BasicCegarLoop]: 670 mSDtfsCounter, 2096 mSDsluCounter, 4097 mSDsCounter, 0 mSdLazyCounter, 1793 mSolverCounterSat, 80 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16269.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2096 SdHoareTripleChecker+Valid, 4767 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.08ms SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1793 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17180.18ms IncrementalHoareTripleChecker+Time [2021-11-05 12:04:09,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2096 Valid, 4767 Invalid, 1878 Unknown, 0 Unchecked, 32.08ms Time], IncrementalHoareTripleChecker [80 Valid, 1793 Invalid, 5 Unknown, 0 Unchecked, 17180.18ms Time] [2021-11-05 12:04:09,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2021-11-05 12:04:09,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 1515. [2021-11-05 12:04:09,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1492 states have (on average 1.2386058981233243) internal successors, (1848), 1514 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:04:09,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 1848 transitions. [2021-11-05 12:04:09,701 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 1848 transitions. Word has length 85 [2021-11-05 12:04:09,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:04:09,701 INFO L470 AbstractCegarLoop]: Abstraction has 1515 states and 1848 transitions. [2021-11-05 12:04:09,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:04:09,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1848 transitions. [2021-11-05 12:04:09,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-05 12:04:09,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:04:09,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:04:09,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-05 12:04:09,703 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:04:09,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:04:09,704 INFO L85 PathProgramCache]: Analyzing trace with hash -996720007, now seen corresponding path program 1 times [2021-11-05 12:04:09,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:04:09,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972274290] [2021-11-05 12:04:09,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:04:09,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:04:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:04:13,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:04:13,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:04:13,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972274290] [2021-11-05 12:04:13,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972274290] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:04:13,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:04:13,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 12:04:13,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044412830] [2021-11-05 12:04:13,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:04:13,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 12:04:13,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:04:13,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 12:04:13,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:04:13,344 INFO L87 Difference]: Start difference. First operand 1515 states and 1848 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:04:15,412 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:04:17,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:04:17,032 INFO L93 Difference]: Finished difference Result 1743 states and 2101 transitions. [2021-11-05 12:04:17,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 12:04:17,032 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-11-05 12:04:17,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:04:17,037 INFO L225 Difference]: With dead ends: 1743 [2021-11-05 12:04:17,037 INFO L226 Difference]: Without dead ends: 1524 [2021-11-05 12:04:17,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 255.77ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:04:17,038 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 77 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3282.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1692 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.81ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3497.80ms IncrementalHoareTripleChecker+Time [2021-11-05 12:04:17,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 1692 Invalid, 262 Unknown, 0 Unchecked, 4.81ms Time], IncrementalHoareTripleChecker [1 Valid, 260 Invalid, 1 Unknown, 0 Unchecked, 3497.80ms Time] [2021-11-05 12:04:17,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2021-11-05 12:04:17,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1506. [2021-11-05 12:04:17,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1483 states have (on average 1.2380310182063385) internal successors, (1836), 1505 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:04:17,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 1836 transitions. [2021-11-05 12:04:17,077 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 1836 transitions. Word has length 88 [2021-11-05 12:04:17,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:04:17,077 INFO L470 AbstractCegarLoop]: Abstraction has 1506 states and 1836 transitions. [2021-11-05 12:04:17,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:04:17,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 1836 transitions. [2021-11-05 12:04:17,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-05 12:04:17,078 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:04:17,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:04:17,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-05 12:04:17,079 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:04:17,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:04:17,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1930767314, now seen corresponding path program 1 times [2021-11-05 12:04:17,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:04:17,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028097623] [2021-11-05 12:04:17,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:04:17,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:04:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:04:17,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:04:17,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:04:17,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028097623] [2021-11-05 12:04:17,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028097623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:04:17,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:04:17,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-05 12:04:17,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848866574] [2021-11-05 12:04:17,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:04:17,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 12:04:17,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:04:17,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 12:04:17,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:04:17,611 INFO L87 Difference]: Start difference. First operand 1506 states and 1836 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:04:20,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:04:20,360 INFO L93 Difference]: Finished difference Result 2282 states and 2755 transitions. [2021-11-05 12:04:20,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-05 12:04:20,360 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-05 12:04:20,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:04:20,366 INFO L225 Difference]: With dead ends: 2282 [2021-11-05 12:04:20,366 INFO L226 Difference]: Without dead ends: 2257 [2021-11-05 12:04:20,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 663.30ms TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2021-11-05 12:04:20,367 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 546 mSDsluCounter, 1649 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2032.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.06ms SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2179.84ms IncrementalHoareTripleChecker+Time [2021-11-05 12:04:20,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [546 Valid, 1991 Invalid, 842 Unknown, 0 Unchecked, 10.06ms Time], IncrementalHoareTripleChecker [220 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 2179.84ms Time] [2021-11-05 12:04:20,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2021-11-05 12:04:20,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 1388. [2021-11-05 12:04:20,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1365 states have (on average 1.216117216117216) internal successors, (1660), 1387 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:04:20,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1660 transitions. [2021-11-05 12:04:20,426 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1660 transitions. Word has length 90 [2021-11-05 12:04:20,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:04:20,427 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 1660 transitions. [2021-11-05 12:04:20,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:04:20,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1660 transitions. [2021-11-05 12:04:20,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-05 12:04:20,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:04:20,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:04:20,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-05 12:04:20,429 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:04:20,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:04:20,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1121420688, now seen corresponding path program 1 times [2021-11-05 12:04:20,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:04:20,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051322517] [2021-11-05 12:04:20,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:04:20,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:04:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:04:21,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:04:21,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:04:21,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051322517] [2021-11-05 12:04:21,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051322517] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:04:21,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:04:21,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-05 12:04:21,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333016949] [2021-11-05 12:04:21,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:04:21,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 12:04:21,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:04:21,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 12:04:21,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:04:21,028 INFO L87 Difference]: Start difference. First operand 1388 states and 1660 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:04:23,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:04:25,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:04:27,281 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:04:30,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:04:30,722 INFO L93 Difference]: Finished difference Result 2016 states and 2335 transitions. [2021-11-05 12:04:30,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 12:04:30,722 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-05 12:04:30,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:04:30,738 INFO L225 Difference]: With dead ends: 2016 [2021-11-05 12:04:30,738 INFO L226 Difference]: Without dead ends: 1803 [2021-11-05 12:04:30,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 555.41ms TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-11-05 12:04:30,740 INFO L933 BasicCegarLoop]: 506 mSDtfsCounter, 374 mSDsluCounter, 1839 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 40 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8751.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.10ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9234.17ms IncrementalHoareTripleChecker+Time [2021-11-05 12:04:30,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 2345 Invalid, 826 Unknown, 0 Unchecked, 11.10ms Time], IncrementalHoareTripleChecker [40 Valid, 783 Invalid, 3 Unknown, 0 Unchecked, 9234.17ms Time] [2021-11-05 12:04:30,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2021-11-05 12:04:30,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1396. [2021-11-05 12:04:30,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1373 states have (on average 1.214857975236708) internal successors, (1668), 1395 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:04:30,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1668 transitions. [2021-11-05 12:04:30,779 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1668 transitions. Word has length 90 [2021-11-05 12:04:30,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:04:30,779 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 1668 transitions. [2021-11-05 12:04:30,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:04:30,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1668 transitions. [2021-11-05 12:04:30,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-05 12:04:30,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:04:30,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:04:30,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-05 12:04:30,781 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:04:30,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:04:30,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1484602866, now seen corresponding path program 1 times [2021-11-05 12:04:30,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:04:30,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774503] [2021-11-05 12:04:30,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:04:30,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:04:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:04:35,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:04:35,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:04:35,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774503] [2021-11-05 12:04:35,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:04:35,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:04:35,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-05 12:04:35,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808976203] [2021-11-05 12:04:35,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:04:35,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-05 12:04:35,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:04:35,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-05 12:04:35,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-11-05 12:04:35,773 INFO L87 Difference]: Start difference. First operand 1396 states and 1668 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:04:37,834 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:04:39,948 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:04:42,023 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:05:00,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:05:00,443 INFO L93 Difference]: Finished difference Result 3121 states and 3596 transitions. [2021-11-05 12:05:00,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-05 12:05:00,444 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-05 12:05:00,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:05:00,451 INFO L225 Difference]: With dead ends: 3121 [2021-11-05 12:05:00,451 INFO L226 Difference]: Without dead ends: 3117 [2021-11-05 12:05:00,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3966 ImplicationChecksByTransitivity, 11258.07ms TimeCoverageRelationStatistics Valid=1659, Invalid=10113, Unknown=0, NotChecked=0, Total=11772 [2021-11-05 12:05:00,455 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 4741 mSDsluCounter, 5838 mSDsCounter, 0 mSdLazyCounter, 2736 mSolverCounterSat, 749 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13170.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4741 SdHoareTripleChecker+Valid, 6433 SdHoareTripleChecker+Invalid, 3488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.00ms SdHoareTripleChecker+Time, 749 IncrementalHoareTripleChecker+Valid, 2736 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13932.31ms IncrementalHoareTripleChecker+Time [2021-11-05 12:05:00,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4741 Valid, 6433 Invalid, 3488 Unknown, 0 Unchecked, 39.00ms Time], IncrementalHoareTripleChecker [749 Valid, 2736 Invalid, 3 Unknown, 0 Unchecked, 13932.31ms Time] [2021-11-05 12:05:00,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2021-11-05 12:05:00,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 1426. [2021-11-05 12:05:00,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1403 states have (on average 1.2138275124732716) internal successors, (1703), 1425 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:00,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1703 transitions. [2021-11-05 12:05:00,517 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1703 transitions. Word has length 90 [2021-11-05 12:05:00,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:05:00,518 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 1703 transitions. [2021-11-05 12:05:00,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:00,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1703 transitions. [2021-11-05 12:05:00,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-05 12:05:00,519 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:05:00,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:05:00,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-05 12:05:00,520 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:05:00,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:05:00,520 INFO L85 PathProgramCache]: Analyzing trace with hash 394552400, now seen corresponding path program 1 times [2021-11-05 12:05:00,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:05:00,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693071736] [2021-11-05 12:05:00,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:05:00,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:05:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:05:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:05:00,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:05:00,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693071736] [2021-11-05 12:05:00,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693071736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:05:00,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:05:00,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 12:05:00,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141787309] [2021-11-05 12:05:00,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:05:00,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 12:05:00,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:05:00,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 12:05:00,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 12:05:00,698 INFO L87 Difference]: Start difference. First operand 1426 states and 1703 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:00,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:05:00,742 INFO L93 Difference]: Finished difference Result 2486 states and 2994 transitions. [2021-11-05 12:05:00,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 12:05:00,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-11-05 12:05:00,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:05:00,756 INFO L225 Difference]: With dead ends: 2486 [2021-11-05 12:05:00,757 INFO L226 Difference]: Without dead ends: 1561 [2021-11-05 12:05:00,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 12:05:00,758 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 187 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.28ms IncrementalHoareTripleChecker+Time [2021-11-05 12:05:00,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 710 Invalid, 3 Unknown, 0 Unchecked, 0.51ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 12.28ms Time] [2021-11-05 12:05:00,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2021-11-05 12:05:00,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1426. [2021-11-05 12:05:00,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1403 states have (on average 1.2081254454739843) internal successors, (1695), 1425 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:00,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1695 transitions. [2021-11-05 12:05:00,800 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1695 transitions. Word has length 92 [2021-11-05 12:05:00,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:05:00,801 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 1695 transitions. [2021-11-05 12:05:00,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:00,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1695 transitions. [2021-11-05 12:05:00,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-05 12:05:00,802 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:05:00,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:05:00,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-05 12:05:00,802 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:05:00,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:05:00,803 INFO L85 PathProgramCache]: Analyzing trace with hash 368218090, now seen corresponding path program 1 times [2021-11-05 12:05:00,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:05:00,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164814665] [2021-11-05 12:05:00,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:05:00,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:05:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:05:01,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:05:01,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:05:01,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164814665] [2021-11-05 12:05:01,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164814665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:05:01,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:05:01,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:05:01,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150006529] [2021-11-05 12:05:01,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:05:01,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:05:01,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:05:01,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:05:01,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:05:01,058 INFO L87 Difference]: Start difference. First operand 1426 states and 1695 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:01,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:05:01,107 INFO L93 Difference]: Finished difference Result 1771 states and 2077 transitions. [2021-11-05 12:05:01,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 12:05:01,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-05 12:05:01,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:05:01,114 INFO L225 Difference]: With dead ends: 1771 [2021-11-05 12:05:01,114 INFO L226 Difference]: Without dead ends: 846 [2021-11-05 12:05:01,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.40ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:05:01,116 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 189 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.67ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.43ms IncrementalHoareTripleChecker+Time [2021-11-05 12:05:01,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 893 Invalid, 9 Unknown, 0 Unchecked, 0.67ms Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 27.43ms Time] [2021-11-05 12:05:01,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2021-11-05 12:05:01,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 562. [2021-11-05 12:05:01,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 539 states have (on average 1.150278293135436) internal successors, (620), 561 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:01,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 620 transitions. [2021-11-05 12:05:01,135 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 620 transitions. Word has length 93 [2021-11-05 12:05:01,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:05:01,135 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 620 transitions. [2021-11-05 12:05:01,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:01,135 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 620 transitions. [2021-11-05 12:05:01,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-05 12:05:01,136 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:05:01,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:05:01,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-05 12:05:01,136 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:05:01,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:05:01,137 INFO L85 PathProgramCache]: Analyzing trace with hash 2036066469, now seen corresponding path program 1 times [2021-11-05 12:05:01,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:05:01,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694157164] [2021-11-05 12:05:01,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:05:01,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:05:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:05:03,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:05:03,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:05:03,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694157164] [2021-11-05 12:05:03,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694157164] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:05:03,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:05:03,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-05 12:05:03,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265895721] [2021-11-05 12:05:03,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:05:03,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-05 12:05:03,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:05:03,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-05 12:05:03,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-05 12:05:03,057 INFO L87 Difference]: Start difference. First operand 562 states and 620 transitions. Second operand has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:05,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:05:07,226 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:05:09,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:05:11,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:05:13,514 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:05:15,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:05:19,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:05:19,343 INFO L93 Difference]: Finished difference Result 1123 states and 1240 transitions. [2021-11-05 12:05:19,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 12:05:19,343 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-05 12:05:19,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:05:19,345 INFO L225 Difference]: With dead ends: 1123 [2021-11-05 12:05:19,345 INFO L226 Difference]: Without dead ends: 750 [2021-11-05 12:05:19,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1164.14ms TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2021-11-05 12:05:19,346 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 1176 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 41 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14805.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.12ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15555.95ms IncrementalHoareTripleChecker+Time [2021-11-05 12:05:19,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 2135 Invalid, 921 Unknown, 0 Unchecked, 11.12ms Time], IncrementalHoareTripleChecker [41 Valid, 874 Invalid, 6 Unknown, 0 Unchecked, 15555.95ms Time] [2021-11-05 12:05:19,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2021-11-05 12:05:19,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 573. [2021-11-05 12:05:19,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 550 states have (on average 1.1472727272727272) internal successors, (631), 572 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:19,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 631 transitions. [2021-11-05 12:05:19,359 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 631 transitions. Word has length 93 [2021-11-05 12:05:19,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:05:19,359 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 631 transitions. [2021-11-05 12:05:19,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:19,359 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 631 transitions. [2021-11-05 12:05:19,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-05 12:05:19,359 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:05:19,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:05:19,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-05 12:05:19,360 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:05:19,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:05:19,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1682978087, now seen corresponding path program 1 times [2021-11-05 12:05:19,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:05:19,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705443783] [2021-11-05 12:05:19,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:05:19,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:05:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:05:22,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:05:22,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:05:22,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705443783] [2021-11-05 12:05:22,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705443783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:05:22,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:05:22,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-05 12:05:22,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866392393] [2021-11-05 12:05:22,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:05:22,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-05 12:05:22,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:05:22,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-05 12:05:22,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-11-05 12:05:22,312 INFO L87 Difference]: Start difference. First operand 573 states and 631 transitions. Second operand has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:24,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:05:33,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:05:33,011 INFO L93 Difference]: Finished difference Result 1084 states and 1190 transitions. [2021-11-05 12:05:33,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-05 12:05:33,012 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-05 12:05:33,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:05:33,013 INFO L225 Difference]: With dead ends: 1084 [2021-11-05 12:05:33,013 INFO L226 Difference]: Without dead ends: 1082 [2021-11-05 12:05:33,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 5461.48ms TimeCoverageRelationStatistics Valid=531, Invalid=2549, Unknown=0, NotChecked=0, Total=3080 [2021-11-05 12:05:33,015 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 1182 mSDsluCounter, 3985 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 217 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5299.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 4447 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.24ms SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5623.24ms IncrementalHoareTripleChecker+Time [2021-11-05 12:05:33,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1182 Valid, 4447 Invalid, 1529 Unknown, 0 Unchecked, 15.24ms Time], IncrementalHoareTripleChecker [217 Valid, 1311 Invalid, 1 Unknown, 0 Unchecked, 5623.24ms Time] [2021-11-05 12:05:33,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2021-11-05 12:05:33,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 518. [2021-11-05 12:05:33,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 496 states have (on average 1.153225806451613) internal successors, (572), 517 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:33,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 572 transitions. [2021-11-05 12:05:33,029 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 572 transitions. Word has length 93 [2021-11-05 12:05:33,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:05:33,029 INFO L470 AbstractCegarLoop]: Abstraction has 518 states and 572 transitions. [2021-11-05 12:05:33,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:33,029 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 572 transitions. [2021-11-05 12:05:33,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-05 12:05:33,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:05:33,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:05:33,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-05 12:05:33,030 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:05:33,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:05:33,030 INFO L85 PathProgramCache]: Analyzing trace with hash -367817784, now seen corresponding path program 1 times [2021-11-05 12:05:33,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:05:33,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88690464] [2021-11-05 12:05:33,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:05:33,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:05:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:05:33,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:05:33,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:05:33,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88690464] [2021-11-05 12:05:33,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88690464] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 12:05:33,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437643900] [2021-11-05 12:05:33,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:05:33,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:05:33,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:05:33,372 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 12:05:33,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 12:05:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:05:34,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 3043 conjuncts, 73 conjunts are in the unsatisfiable core [2021-11-05 12:05:34,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:05:34,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-05 12:05:34,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:05:34,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:05:34,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 48 [2021-11-05 12:05:34,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:05:34,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:05:34,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:05:34,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:05:34,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2021-11-05 12:05:37,509 INFO L354 Elim1Store]: treesize reduction 464, result has 27.6 percent of original size [2021-11-05 12:05:37,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 150 treesize of output 302 [2021-11-05 12:05:37,688 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:05:37,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 86 [2021-11-05 12:05:37,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:05:37,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 37 [2021-11-05 12:05:37,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:05:38,008 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:05:38,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 65 [2021-11-05 12:06:33,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 53 [2021-11-05 12:06:33,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 113 [2021-11-05 12:06:34,807 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-05 12:06:34,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 91 [2021-11-05 12:06:36,162 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-05 12:06:36,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 91 [2021-11-05 12:06:36,795 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-05 12:06:36,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 155 treesize of output 107 [2021-11-05 12:06:42,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 109 [2021-11-05 12:06:42,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 60 [2021-11-05 12:06:45,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 113 [2021-11-05 12:06:46,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 53 [2021-11-05 12:06:51,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 109 [2021-11-05 12:06:52,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 60 [2021-11-05 12:06:59,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 107 [2021-11-05 12:06:59,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 40 [2021-11-05 12:06:59,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 47 [2021-11-05 12:07:00,451 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-05 12:07:00,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 253 treesize of output 213 [2021-11-05 12:07:01,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 103 [2021-11-05 12:07:02,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 50 [2021-11-05 12:07:03,146 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:07:03,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 337 treesize of output 313 [2021-11-05 12:07:09,082 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Possible infinite loop detected aux_mod_aux_mod_aux_mod_ULTIMATE.start_memset_impl_~i~6_58_69_80 already exists [2021-11-05 12:07:09,082 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-05 12:07:09,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-11-05 12:07:09,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784607130] [2021-11-05 12:07:09,083 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-05 12:07:09,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:07:09,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:07:09,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:07:09,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-11-05 12:07:09,083 INFO L87 Difference]: Start difference. First operand 518 states and 572 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:07:09,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:07:09,196 INFO L93 Difference]: Finished difference Result 864 states and 955 transitions. [2021-11-05 12:07:09,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:07:09,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-11-05 12:07:09,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:07:09,198 INFO L225 Difference]: With dead ends: 864 [2021-11-05 12:07:09,198 INFO L226 Difference]: Without dead ends: 656 [2021-11-05 12:07:09,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 601.85ms TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-11-05 12:07:09,199 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 191 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.88ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.73ms IncrementalHoareTripleChecker+Time [2021-11-05 12:07:09,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 1269 Invalid, 15 Unknown, 0 Unchecked, 0.88ms Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 42.73ms Time] [2021-11-05 12:07:09,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2021-11-05 12:07:09,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 520. [2021-11-05 12:07:09,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 498 states have (on average 1.1526104417670682) internal successors, (574), 519 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:07:09,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 574 transitions. [2021-11-05 12:07:09,213 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 574 transitions. Word has length 95 [2021-11-05 12:07:09,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:07:09,213 INFO L470 AbstractCegarLoop]: Abstraction has 520 states and 574 transitions. [2021-11-05 12:07:09,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:07:09,213 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 574 transitions. [2021-11-05 12:07:09,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-05 12:07:09,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:07:09,214 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 12:07:09,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-05 12:07:09,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:07:09,415 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-05 12:07:09,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:07:09,415 INFO L85 PathProgramCache]: Analyzing trace with hash 971311142, now seen corresponding path program 2 times [2021-11-05 12:07:09,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:07:09,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914173025] [2021-11-05 12:07:09,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:07:09,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:07:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:07:09,948 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:07:09,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:07:09,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914173025] [2021-11-05 12:07:09,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914173025] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 12:07:09,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195357531] [2021-11-05 12:07:09,949 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-05 12:07:09,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:07:09,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:07:09,950 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 12:07:09,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 12:11:19,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-05 12:11:19,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 12:11:19,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 3050 conjuncts, 83 conjunts are in the unsatisfiable core [2021-11-05 12:11:19,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:11:19,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-05 12:11:20,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-05 12:11:21,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:21,150 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-05 12:11:21,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 54 [2021-11-05 12:11:21,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:21,239 INFO L354 Elim1Store]: treesize reduction 82, result has 17.2 percent of original size [2021-11-05 12:11:21,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 42 [2021-11-05 12:11:23,922 INFO L354 Elim1Store]: treesize reduction 182, result has 43.7 percent of original size [2021-11-05 12:11:23,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 150 treesize of output 318 [2021-11-05 12:11:24,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:24,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 29 [2021-11-05 12:11:24,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:24,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 29 [2021-11-05 12:11:24,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:24,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:24,484 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:11:24,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 51 [2021-11-05 12:11:24,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:24,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:24,666 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:11:24,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 51 [2021-11-05 12:11:25,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:25,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 29 [2021-11-05 12:11:25,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:25,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 29 [2021-11-05 12:11:26,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:26,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2021-11-05 12:11:26,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:26,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2021-11-05 12:11:26,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:26,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:26,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:26,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 36 [2021-11-05 12:11:27,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:27,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:27,142 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:11:27,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 48 [2021-11-05 12:11:27,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:27,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:27,471 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:11:27,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 48 [2021-11-05 12:11:27,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:27,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:27,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:27,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 36 [2021-11-05 12:11:29,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:29,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 29 [2021-11-05 12:11:29,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:29,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 29 [2021-11-05 12:11:34,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:34,983 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:11:34,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 72 [2021-11-05 12:11:35,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:35,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:35,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:35,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 34 [2021-11-05 12:11:35,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:35,365 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:11:35,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 72 [2021-11-05 12:11:35,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:35,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:35,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:35,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 34 [2021-11-05 12:11:35,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:35,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:35,726 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-05 12:11:35,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 34 [2021-11-05 12:11:35,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:35,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 27 [2021-11-05 12:11:36,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:36,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 27 [2021-11-05 12:11:36,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:36,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 27 [2021-11-05 12:11:36,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:11:36,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 27 [2021-11-05 12:12:00,885 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-05 12:12:00,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 66 [2021-11-05 12:12:00,977 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-05 12:12:00,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 64 [2021-11-05 12:12:01,116 INFO L354 Elim1Store]: treesize reduction 10, result has 73.0 percent of original size [2021-11-05 12:12:01,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 142 treesize of output 122 [2021-11-05 12:12:04,920 INFO L354 Elim1Store]: treesize reduction 180, result has 68.8 percent of original size [2021-11-05 12:12:04,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 2 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 36 case distinctions, treesize of input 590 treesize of output 798 Killed by 15