./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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_write_be64_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 e695a989d07c92d21e9a41b59ca742c73a2098242f3cafca723523a39a7793cb --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 08:58:53,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:58:53,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:58:53,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:58:53,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:58:53,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:58:53,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:58:53,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:58:53,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:58:53,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:58:53,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:58:53,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:58:53,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:58:53,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:58:53,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:58:53,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:58:53,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:58:53,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:58:53,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:58:53,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:58:53,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:58:53,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:58:53,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:58:53,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:58:53,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:58:53,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:58:53,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:58:53,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:58:53,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:58:53,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:58:53,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:58:53,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:58:53,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:58:53,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:58:53,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:58:53,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:58:53,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:58:53,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:58:53,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:58:53,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:58:53,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:58:53,647 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 08:58:53,674 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:58:53,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:58:53,675 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:58:53,675 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:58:53,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:58:53,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:58:53,677 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:58:53,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:58:53,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:58:53,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:58:53,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:58:53,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:58:53,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:58:53,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:58:53,679 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:58:53,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:58:53,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:58:53,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:58:53,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:58:53,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:58:53,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:58:53,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:58:53,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:58:53,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:58:53,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:58:53,681 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:58:53,681 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:58:53,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:58:53,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:58:53,682 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e695a989d07c92d21e9a41b59ca742c73a2098242f3cafca723523a39a7793cb [2021-11-07 08:58:53,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:58:53,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:58:53,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:58:53,872 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:58:53,873 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:58:53,874 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i [2021-11-07 08:58:53,922 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d07c88537/ccc1a019347e471fb2451c64109ef783/FLAGe5a8f8a60 [2021-11-07 08:58:54,446 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:58:54,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i [2021-11-07 08:58:54,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d07c88537/ccc1a019347e471fb2451c64109ef783/FLAGe5a8f8a60 [2021-11-07 08:58:54,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d07c88537/ccc1a019347e471fb2451c64109ef783 [2021-11-07 08:58:54,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:58:54,655 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:58:54,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:58:54,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:58:54,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:58:54,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:58:54" (1/1) ... [2021-11-07 08:58:54,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1109bb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:54, skipping insertion in model container [2021-11-07 08:58:54,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:58:54" (1/1) ... [2021-11-07 08:58:54,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:58:54,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:58:54,947 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_write_be64_harness.i[4497,4510] [2021-11-07 08:58:54,954 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_write_be64_harness.i[4557,4570] [2021-11-07 08:58:54,979 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 08:58:54,985 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 08:58:55,622 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:55,623 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:55,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:55,625 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:55,626 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:55,647 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:55,648 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:55,651 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:55,651 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:55,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 08:58:55,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 08:58:55,871 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 08:58:55,871 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 08:58:55,872 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 08:58:55,873 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 08:58:55,873 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 08:58:55,874 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 08:58:55,874 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 08:58:55,874 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 08:58:55,958 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 08:58:56,079 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:56,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:56,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:58:56,192 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:58:56,210 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_write_be64_harness.i[4497,4510] [2021-11-07 08:58:56,212 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_write_be64_harness.i[4557,4570] [2021-11-07 08:58:56,214 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 08:58:56,215 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 08:58:56,254 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:56,255 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:56,255 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:56,256 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:56,256 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:56,268 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:56,270 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:56,271 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:56,271 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:56,309 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 08:58:56,309 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 08:58:56,310 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 08:58:56,310 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 08:58:56,311 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 08:58:56,312 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 08:58:56,312 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 08:58:56,312 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 08:58:56,312 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 08:58:56,313 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 08:58:56,333 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 08:58:56,380 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:56,381 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:56,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:58:56,580 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:58:56,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:56 WrapperNode [2021-11-07 08:58:56,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:58:56,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:58:56,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:58:56,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:58:56,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:56" (1/1) ... [2021-11-07 08:58:56,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:56" (1/1) ... [2021-11-07 08:58:56,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:58:56,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:58:56,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:58:56,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:58:56,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:56" (1/1) ... [2021-11-07 08:58:56,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:56" (1/1) ... [2021-11-07 08:58:56,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:56" (1/1) ... [2021-11-07 08:58:56,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:56" (1/1) ... [2021-11-07 08:58:56,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:56" (1/1) ... [2021-11-07 08:58:56,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:56" (1/1) ... [2021-11-07 08:58:56,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:56" (1/1) ... [2021-11-07 08:58:56,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:58:56,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:58:56,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:58:56,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:58:56,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:56" (1/1) ... [2021-11-07 08:58:56,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:58:56,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:58:56,871 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) [2021-11-07 08:58:56,898 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 [2021-11-07 08:58:56,917 INFO L130 BoogieDeclarations]: Found specification of procedure htonl [2021-11-07 08:58:56,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:58:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:58:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 08:58:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 08:58:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:58:56,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:58:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:58:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 08:58:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 08:58:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:58:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:59:04,764 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:59:04,764 INFO L299 CfgBuilder]: Removed 91 assume(true) statements. [2021-11-07 08:59:04,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:59:04 BoogieIcfgContainer [2021-11-07 08:59:04,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:59:04,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:59:04,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:59:04,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:59:04,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:58:54" (1/3) ... [2021-11-07 08:59:04,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52882bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:59:04, skipping insertion in model container [2021-11-07 08:59:04,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:56" (2/3) ... [2021-11-07 08:59:04,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52882bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:59:04, skipping insertion in model container [2021-11-07 08:59:04,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:59:04" (3/3) ... [2021-11-07 08:59:04,772 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be64_harness.i [2021-11-07 08:59:04,776 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:59:04,776 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-07 08:59:04,809 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:59:04,813 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 [2021-11-07 08:59:04,814 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-07 08:59:04,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 188 states, 176 states have (on average 1.4829545454545454) internal successors, (261), 187 states have internal predecessors, (261), 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) [2021-11-07 08:59:04,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 08:59:04,832 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:04,832 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] [2021-11-07 08:59:04,833 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 08:59:04,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:04,837 INFO L85 PathProgramCache]: Analyzing trace with hash -2035654772, now seen corresponding path program 1 times [2021-11-07 08:59:04,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:04,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036703551] [2021-11-07 08:59:04,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:04,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:05,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:05,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:05,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036703551] [2021-11-07 08:59:05,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036703551] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:05,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:05,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:59:05,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504467069] [2021-11-07 08:59:05,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:05,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 08:59:05,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:05,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 08:59:05,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:59:05,261 INFO L87 Difference]: Start difference. First operand has 188 states, 176 states have (on average 1.4829545454545454) internal successors, (261), 187 states have internal predecessors, (261), 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 20.5) internal successors, (41), 2 states have internal predecessors, (41), 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) [2021-11-07 08:59:05,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:05,299 INFO L93 Difference]: Finished difference Result 372 states and 517 transitions. [2021-11-07 08:59:05,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:59:05,301 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 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 41 [2021-11-07 08:59:05,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:05,312 INFO L225 Difference]: With dead ends: 372 [2021-11-07 08:59:05,312 INFO L226 Difference]: Without dead ends: 183 [2021-11-07 08:59:05,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:59:05,324 INFO L933 BasicCegarLoop]: 239 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, 239 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:05,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 3.70ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 08:59:05,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-07 08:59:05,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-11-07 08:59:05,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 172 states have (on average 1.3604651162790697) internal successors, (234), 182 states have internal predecessors, (234), 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) [2021-11-07 08:59:05,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 234 transitions. [2021-11-07 08:59:05,356 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 234 transitions. Word has length 41 [2021-11-07 08:59:05,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:05,357 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 234 transitions. [2021-11-07 08:59:05,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 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) [2021-11-07 08:59:05,357 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 234 transitions. [2021-11-07 08:59:05,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 08:59:05,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:05,358 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] [2021-11-07 08:59:05,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:59:05,359 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 08:59:05,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:05,360 INFO L85 PathProgramCache]: Analyzing trace with hash 911785488, now seen corresponding path program 1 times [2021-11-07 08:59:05,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:05,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561314428] [2021-11-07 08:59:05,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:05,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:05,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:05,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:05,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561314428] [2021-11-07 08:59:05,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561314428] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:05,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:05,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:59:05,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494900163] [2021-11-07 08:59:05,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:05,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:59:05,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:05,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:59:05,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:59:05,593 INFO L87 Difference]: Start difference. First operand 183 states and 234 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-11-07 08:59:05,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:05,803 INFO L93 Difference]: Finished difference Result 340 states and 434 transitions. [2021-11-07 08:59:05,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:59:05,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2021-11-07 08:59:05,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:05,805 INFO L225 Difference]: With dead ends: 340 [2021-11-07 08:59:05,805 INFO L226 Difference]: Without dead ends: 183 [2021-11-07 08:59:05,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 58.47ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:59:05,806 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 325 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 141.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.01ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 161.91ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:05,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 316 Invalid, 43 Unknown, 0 Unchecked, 4.01ms Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 161.91ms Time] [2021-11-07 08:59:05,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-07 08:59:05,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-11-07 08:59:05,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 172 states have (on average 1.3430232558139534) internal successors, (231), 182 states have internal predecessors, (231), 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) [2021-11-07 08:59:05,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 231 transitions. [2021-11-07 08:59:05,813 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 231 transitions. Word has length 41 [2021-11-07 08:59:05,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:05,814 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 231 transitions. [2021-11-07 08:59:05,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-11-07 08:59:05,814 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 231 transitions. [2021-11-07 08:59:05,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 08:59:05,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:05,815 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] [2021-11-07 08:59:05,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:59:05,816 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 08:59:05,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:05,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1949548946, now seen corresponding path program 1 times [2021-11-07 08:59:05,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:05,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531433504] [2021-11-07 08:59:05,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:05,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:06,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:06,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:06,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531433504] [2021-11-07 08:59:06,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531433504] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:06,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:06,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:59:06,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557768629] [2021-11-07 08:59:06,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:06,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:59:06,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:06,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:59:06,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:59:06,034 INFO L87 Difference]: Start difference. First operand 183 states and 231 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2021-11-07 08:59:06,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:06,441 INFO L93 Difference]: Finished difference Result 401 states and 514 transitions. [2021-11-07 08:59:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:59:06,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2021-11-07 08:59:06,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:06,443 INFO L225 Difference]: With dead ends: 401 [2021-11-07 08:59:06,443 INFO L226 Difference]: Without dead ends: 243 [2021-11-07 08:59:06,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.32ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:59:06,444 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 129 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 326.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.44ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 362.07ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:06,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 622 Invalid, 122 Unknown, 0 Unchecked, 4.44ms Time], IncrementalHoareTripleChecker [21 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 362.07ms Time] [2021-11-07 08:59:06,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-07 08:59:06,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 195. [2021-11-07 08:59:06,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 184 states have (on average 1.3206521739130435) internal successors, (243), 194 states have internal predecessors, (243), 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) [2021-11-07 08:59:06,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 243 transitions. [2021-11-07 08:59:06,451 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 243 transitions. Word has length 53 [2021-11-07 08:59:06,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:06,451 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 243 transitions. [2021-11-07 08:59:06,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2021-11-07 08:59:06,452 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 243 transitions. [2021-11-07 08:59:06,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 08:59:06,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:06,453 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] [2021-11-07 08:59:06,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:59:06,453 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 08:59:06,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:06,454 INFO L85 PathProgramCache]: Analyzing trace with hash -920189648, now seen corresponding path program 1 times [2021-11-07 08:59:06,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:06,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469321155] [2021-11-07 08:59:06,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:06,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:06,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:06,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:06,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469321155] [2021-11-07 08:59:06,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469321155] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:06,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:06,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:59:06,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778088178] [2021-11-07 08:59:06,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:06,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:59:06,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:06,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:59:06,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:59:06,729 INFO L87 Difference]: Start difference. First operand 195 states and 243 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2021-11-07 08:59:06,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:06,962 INFO L93 Difference]: Finished difference Result 316 states and 390 transitions. [2021-11-07 08:59:06,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 08:59:06,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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 53 [2021-11-07 08:59:06,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:06,963 INFO L225 Difference]: With dead ends: 316 [2021-11-07 08:59:06,963 INFO L226 Difference]: Without dead ends: 195 [2021-11-07 08:59:06,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 130.99ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 08:59:06,965 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 486 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 128.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.13ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139.96ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:06,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [486 Valid, 351 Invalid, 45 Unknown, 0 Unchecked, 2.13ms Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 139.96ms Time] [2021-11-07 08:59:06,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-07 08:59:06,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-07 08:59:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 184 states have (on average 1.315217391304348) internal successors, (242), 194 states have internal predecessors, (242), 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) [2021-11-07 08:59:06,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 242 transitions. [2021-11-07 08:59:06,971 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 242 transitions. Word has length 53 [2021-11-07 08:59:06,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:06,971 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 242 transitions. [2021-11-07 08:59:06,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2021-11-07 08:59:06,972 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 242 transitions. [2021-11-07 08:59:06,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 08:59:06,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:06,973 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] [2021-11-07 08:59:06,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 08:59:06,973 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 08:59:06,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:06,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1542097477, now seen corresponding path program 1 times [2021-11-07 08:59:06,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:06,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492242451] [2021-11-07 08:59:06,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:06,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:07,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:07,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:07,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492242451] [2021-11-07 08:59:07,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492242451] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:07,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:07,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 08:59:07,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83245451] [2021-11-07 08:59:07,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:07,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:59:07,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:07,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:59:07,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:59:07,270 INFO L87 Difference]: Start difference. First operand 195 states and 242 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2021-11-07 08:59:07,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:07,641 INFO L93 Difference]: Finished difference Result 267 states and 323 transitions. [2021-11-07 08:59:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 08:59:07,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 59 [2021-11-07 08:59:07,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:07,643 INFO L225 Difference]: With dead ends: 267 [2021-11-07 08:59:07,643 INFO L226 Difference]: Without dead ends: 195 [2021-11-07 08:59:07,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 250.64ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-07 08:59:07,644 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 628 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 173.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.82ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 188.28ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:07,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [628 Valid, 402 Invalid, 58 Unknown, 0 Unchecked, 2.82ms Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 188.28ms Time] [2021-11-07 08:59:07,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-07 08:59:07,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-07 08:59:07,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 184 states have (on average 1.3043478260869565) internal successors, (240), 194 states have internal predecessors, (240), 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) [2021-11-07 08:59:07,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 240 transitions. [2021-11-07 08:59:07,648 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 240 transitions. Word has length 59 [2021-11-07 08:59:07,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:07,649 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 240 transitions. [2021-11-07 08:59:07,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2021-11-07 08:59:07,649 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 240 transitions. [2021-11-07 08:59:07,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 08:59:07,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:07,650 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] [2021-11-07 08:59:07,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 08:59:07,650 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 08:59:07,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:07,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1146198862, now seen corresponding path program 1 times [2021-11-07 08:59:07,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:07,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245875866] [2021-11-07 08:59:07,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:07,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:07,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:07,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:07,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245875866] [2021-11-07 08:59:07,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245875866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:07,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:07,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:59:07,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043907509] [2021-11-07 08:59:07,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:07,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:59:07,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:07,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:59:07,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:59:07,848 INFO L87 Difference]: Start difference. First operand 195 states and 240 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2021-11-07 08:59:08,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:08,245 INFO L93 Difference]: Finished difference Result 491 states and 620 transitions. [2021-11-07 08:59:08,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:59:08,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 65 [2021-11-07 08:59:08,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:08,247 INFO L225 Difference]: With dead ends: 491 [2021-11-07 08:59:08,247 INFO L226 Difference]: Without dead ends: 315 [2021-11-07 08:59:08,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.35ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:59:08,248 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 169 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 322.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.43ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 357.50ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:08,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 775 Invalid, 132 Unknown, 0 Unchecked, 3.43ms Time], IncrementalHoareTripleChecker [21 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 357.50ms Time] [2021-11-07 08:59:08,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-11-07 08:59:08,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 207. [2021-11-07 08:59:08,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 196 states have (on average 1.2857142857142858) internal successors, (252), 206 states have internal predecessors, (252), 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) [2021-11-07 08:59:08,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 252 transitions. [2021-11-07 08:59:08,252 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 252 transitions. Word has length 65 [2021-11-07 08:59:08,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:08,252 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 252 transitions. [2021-11-07 08:59:08,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2021-11-07 08:59:08,252 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 252 transitions. [2021-11-07 08:59:08,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 08:59:08,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:08,253 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] [2021-11-07 08:59:08,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 08:59:08,253 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 08:59:08,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:08,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1539225872, now seen corresponding path program 1 times [2021-11-07 08:59:08,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:08,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767473871] [2021-11-07 08:59:08,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:08,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:08,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:08,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:08,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767473871] [2021-11-07 08:59:08,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767473871] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:08,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:08,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 08:59:08,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427056405] [2021-11-07 08:59:08,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:08,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:59:08,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:08,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:59:08,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:59:08,705 INFO L87 Difference]: Start difference. First operand 207 states and 252 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2021-11-07 08:59:09,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:09,362 INFO L93 Difference]: Finished difference Result 328 states and 387 transitions. [2021-11-07 08:59:09,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 08:59:09,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 65 [2021-11-07 08:59:09,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:09,364 INFO L225 Difference]: With dead ends: 328 [2021-11-07 08:59:09,364 INFO L226 Difference]: Without dead ends: 315 [2021-11-07 08:59:09,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 216.88ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-07 08:59:09,365 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 231 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 455.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.73ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 510.57ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:09,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 866 Invalid, 201 Unknown, 0 Unchecked, 4.73ms Time], IncrementalHoareTripleChecker [40 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 510.57ms Time] [2021-11-07 08:59:09,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-11-07 08:59:09,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 213. [2021-11-07 08:59:09,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 202 states have (on average 1.2722772277227723) internal successors, (257), 212 states have internal predecessors, (257), 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) [2021-11-07 08:59:09,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 257 transitions. [2021-11-07 08:59:09,370 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 257 transitions. Word has length 65 [2021-11-07 08:59:09,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:09,370 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 257 transitions. [2021-11-07 08:59:09,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2021-11-07 08:59:09,371 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 257 transitions. [2021-11-07 08:59:09,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 08:59:09,371 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:09,371 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] [2021-11-07 08:59:09,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 08:59:09,372 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 08:59:09,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:09,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1637368772, now seen corresponding path program 1 times [2021-11-07 08:59:09,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:09,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943133333] [2021-11-07 08:59:09,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:09,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:10,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:10,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:10,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943133333] [2021-11-07 08:59:10,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943133333] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:10,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:10,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 08:59:10,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100116563] [2021-11-07 08:59:10,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:10,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 08:59:10,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:10,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 08:59:10,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 08:59:10,131 INFO L87 Difference]: Start difference. First operand 213 states and 257 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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) [2021-11-07 08:59:12,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:14,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:16,398 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 [] [2021-11-07 08:59:17,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:17,781 INFO L93 Difference]: Finished difference Result 458 states and 546 transitions. [2021-11-07 08:59:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 08:59:17,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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 69 [2021-11-07 08:59:17,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:17,782 INFO L225 Difference]: With dead ends: 458 [2021-11-07 08:59:17,783 INFO L226 Difference]: Without dead ends: 332 [2021-11-07 08:59:17,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 397.14ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 08:59:17,784 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 522 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 25 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6980.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.69ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7389.66ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:17,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [522 Valid, 813 Invalid, 330 Unknown, 0 Unchecked, 6.69ms Time], IncrementalHoareTripleChecker [25 Valid, 302 Invalid, 3 Unknown, 0 Unchecked, 7389.66ms Time] [2021-11-07 08:59:17,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-11-07 08:59:17,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 227. [2021-11-07 08:59:17,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 216 states have (on average 1.2685185185185186) internal successors, (274), 226 states have internal predecessors, (274), 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) [2021-11-07 08:59:17,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 274 transitions. [2021-11-07 08:59:17,791 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 274 transitions. Word has length 69 [2021-11-07 08:59:17,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:17,791 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 274 transitions. [2021-11-07 08:59:17,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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) [2021-11-07 08:59:17,792 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 274 transitions. [2021-11-07 08:59:17,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 08:59:17,792 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:17,792 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] [2021-11-07 08:59:17,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 08:59:17,793 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 08:59:17,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:17,793 INFO L85 PathProgramCache]: Analyzing trace with hash 49020870, now seen corresponding path program 1 times [2021-11-07 08:59:17,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:17,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228845418] [2021-11-07 08:59:17,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:17,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:18,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:18,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:18,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228845418] [2021-11-07 08:59:18,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228845418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:18,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:18,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 08:59:18,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8260247] [2021-11-07 08:59:18,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:18,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 08:59:18,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:18,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 08:59:18,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-07 08:59:18,753 INFO L87 Difference]: Start difference. First operand 227 states and 274 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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) [2021-11-07 08:59:20,796 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:22,971 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:25,083 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:27,200 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 [] [2021-11-07 08:59:29,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:29,574 INFO L93 Difference]: Finished difference Result 489 states and 583 transitions. [2021-11-07 08:59:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 08:59:29,575 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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 69 [2021-11-07 08:59:29,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:29,576 INFO L225 Difference]: With dead ends: 489 [2021-11-07 08:59:29,576 INFO L226 Difference]: Without dead ends: 354 [2021-11-07 08:59:29,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 842.26ms TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2021-11-07 08:59:29,577 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 939 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 54 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9616.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.44ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10237.67ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:29,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [939 Valid, 1299 Invalid, 582 Unknown, 0 Unchecked, 10.44ms Time], IncrementalHoareTripleChecker [54 Valid, 524 Invalid, 4 Unknown, 0 Unchecked, 10237.67ms Time] [2021-11-07 08:59:29,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-11-07 08:59:29,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 244. [2021-11-07 08:59:29,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.2703862660944205) internal successors, (296), 243 states have internal predecessors, (296), 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) [2021-11-07 08:59:29,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 296 transitions. [2021-11-07 08:59:29,585 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 296 transitions. Word has length 69 [2021-11-07 08:59:29,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:29,585 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 296 transitions. [2021-11-07 08:59:29,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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) [2021-11-07 08:59:29,585 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 296 transitions. [2021-11-07 08:59:29,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 08:59:29,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:29,590 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] [2021-11-07 08:59:29,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 08:59:29,590 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 08:59:29,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:29,591 INFO L85 PathProgramCache]: Analyzing trace with hash 729079240, now seen corresponding path program 1 times [2021-11-07 08:59:29,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:29,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471031512] [2021-11-07 08:59:29,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:29,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:29,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:29,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:29,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471031512] [2021-11-07 08:59:29,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471031512] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:29,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:29,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:59:29,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338226430] [2021-11-07 08:59:29,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:29,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:59:29,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:29,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:59:29,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:59:29,976 INFO L87 Difference]: Start difference. First operand 244 states and 296 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2021-11-07 08:59:32,022 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:32,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:32,967 INFO L93 Difference]: Finished difference Result 612 states and 738 transitions. [2021-11-07 08:59:32,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:59:32,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 69 [2021-11-07 08:59:32,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:32,969 INFO L225 Difference]: With dead ends: 612 [2021-11-07 08:59:32,969 INFO L226 Difference]: Without dead ends: 392 [2021-11-07 08:59:32,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 81.74ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:59:32,970 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 327 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2737.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.20ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2934.47ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:32,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 776 Invalid, 263 Unknown, 0 Unchecked, 4.20ms Time], IncrementalHoareTripleChecker [32 Valid, 230 Invalid, 1 Unknown, 0 Unchecked, 2934.47ms Time] [2021-11-07 08:59:32,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-11-07 08:59:32,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 265. [2021-11-07 08:59:32,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 254 states have (on average 1.2480314960629921) internal successors, (317), 264 states have internal predecessors, (317), 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) [2021-11-07 08:59:32,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 317 transitions. [2021-11-07 08:59:32,977 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 317 transitions. Word has length 69 [2021-11-07 08:59:32,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:32,978 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 317 transitions. [2021-11-07 08:59:32,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2021-11-07 08:59:32,978 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 317 transitions. [2021-11-07 08:59:32,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 08:59:32,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:32,979 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] [2021-11-07 08:59:32,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 08:59:32,982 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 08:59:32,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:32,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1482031052, now seen corresponding path program 1 times [2021-11-07 08:59:32,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:32,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697528724] [2021-11-07 08:59:32,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:32,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:35,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:35,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:35,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697528724] [2021-11-07 08:59:35,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697528724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:35,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:35,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:59:35,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720407927] [2021-11-07 08:59:35,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:35,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:59:35,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:35,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:59:35,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:59:35,090 INFO L87 Difference]: Start difference. First operand 265 states and 317 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2021-11-07 08:59:35,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:35,141 INFO L93 Difference]: Finished difference Result 462 states and 551 transitions. [2021-11-07 08:59:35,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:59:35,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 69 [2021-11-07 08:59:35,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:35,142 INFO L225 Difference]: With dead ends: 462 [2021-11-07 08:59:35,142 INFO L226 Difference]: Without dead ends: 265 [2021-11-07 08:59:35,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 78.27ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:59:35,143 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 159 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.42ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.85ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:35,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 512 Invalid, 5 Unknown, 0 Unchecked, 0.42ms Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 12.85ms Time] [2021-11-07 08:59:35,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-11-07 08:59:35,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2021-11-07 08:59:35,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 254 states have (on average 1.2440944881889764) internal successors, (316), 264 states have internal predecessors, (316), 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) [2021-11-07 08:59:35,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 316 transitions. [2021-11-07 08:59:35,149 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 316 transitions. Word has length 69 [2021-11-07 08:59:35,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:35,150 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 316 transitions. [2021-11-07 08:59:35,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2021-11-07 08:59:35,150 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 316 transitions. [2021-11-07 08:59:35,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 08:59:35,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:35,151 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] [2021-11-07 08:59:35,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 08:59:35,151 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 08:59:35,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:35,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1756790666, now seen corresponding path program 1 times [2021-11-07 08:59:35,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:35,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951697106] [2021-11-07 08:59:35,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:35,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:37,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:37,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:37,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951697106] [2021-11-07 08:59:37,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951697106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:37,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:37,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 08:59:37,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502268845] [2021-11-07 08:59:37,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:37,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:59:37,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:37,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:59:37,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:59:37,221 INFO L87 Difference]: Start difference. First operand 265 states and 316 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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) [2021-11-07 08:59:39,275 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:41,413 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:42,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:42,733 INFO L93 Difference]: Finished difference Result 561 states and 673 transitions. [2021-11-07 08:59:42,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 08:59:42,733 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 69 [2021-11-07 08:59:42,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:42,734 INFO L225 Difference]: With dead ends: 561 [2021-11-07 08:59:42,735 INFO L226 Difference]: Without dead ends: 328 [2021-11-07 08:59:42,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 564.29ms TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-11-07 08:59:42,736 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 725 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 26 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4778.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.45ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5089.87ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:42,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [725 Valid, 942 Invalid, 295 Unknown, 0 Unchecked, 5.45ms Time], IncrementalHoareTripleChecker [26 Valid, 267 Invalid, 2 Unknown, 0 Unchecked, 5089.87ms Time] [2021-11-07 08:59:42,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-11-07 08:59:42,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 268. [2021-11-07 08:59:42,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 257 states have (on average 1.245136186770428) internal successors, (320), 267 states have internal predecessors, (320), 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) [2021-11-07 08:59:42,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 320 transitions. [2021-11-07 08:59:42,742 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 320 transitions. Word has length 69 [2021-11-07 08:59:42,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:42,742 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 320 transitions. [2021-11-07 08:59:42,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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) [2021-11-07 08:59:42,743 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 320 transitions. [2021-11-07 08:59:42,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-07 08:59:42,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:42,744 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] [2021-11-07 08:59:42,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 08:59:42,744 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 08:59:42,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:42,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1589544943, now seen corresponding path program 1 times [2021-11-07 08:59:42,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:42,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845492757] [2021-11-07 08:59:42,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:42,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:44,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:44,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:44,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845492757] [2021-11-07 08:59:44,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845492757] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:44,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:44,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-07 08:59:44,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973735356] [2021-11-07 08:59:44,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:44,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-07 08:59:44,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:44,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-07 08:59:44,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-11-07 08:59:44,690 INFO L87 Difference]: Start difference. First operand 268 states and 320 transitions. Second operand has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 21 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) [2021-11-07 08:59:46,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:48,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:50,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:53,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:55,190 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:57,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:59,405 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:01,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:03,656 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 [] [2021-11-07 09:00:13,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:00:13,683 INFO L93 Difference]: Finished difference Result 936 states and 1126 transitions. [2021-11-07 09:00:13,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-07 09:00:13,683 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 21 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 [2021-11-07 09:00:13,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:00:13,685 INFO L225 Difference]: With dead ends: 936 [2021-11-07 09:00:13,685 INFO L226 Difference]: Without dead ends: 722 [2021-11-07 09:00:13,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 763 ImplicationChecksByTransitivity, 4098.72ms TimeCoverageRelationStatistics Valid=503, Invalid=2359, Unknown=0, NotChecked=0, Total=2862 [2021-11-07 09:00:13,687 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 1686 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 2251 mSolverCounterSat, 94 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24362.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1686 SdHoareTripleChecker+Valid, 4428 SdHoareTripleChecker+Invalid, 2354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.34ms SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2251 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25749.74ms IncrementalHoareTripleChecker+Time [2021-11-07 09:00:13,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1686 Valid, 4428 Invalid, 2354 Unknown, 0 Unchecked, 27.34ms Time], IncrementalHoareTripleChecker [94 Valid, 2251 Invalid, 9 Unknown, 0 Unchecked, 25749.74ms Time] [2021-11-07 09:00:13,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2021-11-07 09:00:13,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 364. [2021-11-07 09:00:13,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 353 states have (on average 1.2407932011331444) internal successors, (438), 363 states have internal predecessors, (438), 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) [2021-11-07 09:00:13,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 438 transitions. [2021-11-07 09:00:13,698 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 438 transitions. Word has length 76 [2021-11-07 09:00:13,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:00:13,698 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 438 transitions. [2021-11-07 09:00:13,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 21 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) [2021-11-07 09:00:13,698 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 438 transitions. [2021-11-07 09:00:13,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-07 09:00:13,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:00:13,699 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] [2021-11-07 09:00:13,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 09:00:13,700 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:00:13,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:00:13,700 INFO L85 PathProgramCache]: Analyzing trace with hash -372029715, now seen corresponding path program 1 times [2021-11-07 09:00:13,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:00:13,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304933939] [2021-11-07 09:00:13,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:00:13,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:00:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:00:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:00:14,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:00:14,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304933939] [2021-11-07 09:00:14,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304933939] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:00:14,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:00:14,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 09:00:14,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402753652] [2021-11-07 09:00:14,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:00:14,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 09:00:14,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:00:14,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 09:00:14,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-07 09:00:14,436 INFO L87 Difference]: Start difference. First operand 364 states and 438 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 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) [2021-11-07 09:00:16,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:18,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:00:18,271 INFO L93 Difference]: Finished difference Result 884 states and 1056 transitions. [2021-11-07 09:00:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 09:00:18,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 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 [2021-11-07 09:00:18,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:00:18,274 INFO L225 Difference]: With dead ends: 884 [2021-11-07 09:00:18,274 INFO L226 Difference]: Without dead ends: 657 [2021-11-07 09:00:18,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 517.70ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-11-07 09:00:18,275 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 481 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3226.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.35ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3470.13ms IncrementalHoareTripleChecker+Time [2021-11-07 09:00:18,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 1164 Invalid, 390 Unknown, 0 Unchecked, 6.35ms Time], IncrementalHoareTripleChecker [26 Valid, 363 Invalid, 1 Unknown, 0 Unchecked, 3470.13ms Time] [2021-11-07 09:00:18,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2021-11-07 09:00:18,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 375. [2021-11-07 09:00:18,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 364 states have (on average 1.239010989010989) internal successors, (451), 374 states have internal predecessors, (451), 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) [2021-11-07 09:00:18,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 451 transitions. [2021-11-07 09:00:18,303 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 451 transitions. Word has length 76 [2021-11-07 09:00:18,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:00:18,303 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 451 transitions. [2021-11-07 09:00:18,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 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) [2021-11-07 09:00:18,303 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 451 transitions. [2021-11-07 09:00:18,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-07 09:00:18,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:00:18,304 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] [2021-11-07 09:00:18,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 09:00:18,304 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:00:18,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:00:18,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1172148337, now seen corresponding path program 1 times [2021-11-07 09:00:18,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:00:18,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861807637] [2021-11-07 09:00:18,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:00:18,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:00:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:00:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:00:19,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:00:19,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861807637] [2021-11-07 09:00:19,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861807637] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:00:19,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:00:19,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 09:00:19,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625907284] [2021-11-07 09:00:19,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:00:19,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 09:00:19,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:00:19,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 09:00:19,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-07 09:00:19,470 INFO L87 Difference]: Start difference. First operand 375 states and 451 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 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) [2021-11-07 09:00:21,515 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:23,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:25,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:27,853 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:30,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:00:30,690 INFO L93 Difference]: Finished difference Result 720 states and 868 transitions. [2021-11-07 09:00:30,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 09:00:30,691 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 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 [2021-11-07 09:00:30,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:00:30,692 INFO L225 Difference]: With dead ends: 720 [2021-11-07 09:00:30,692 INFO L226 Difference]: Without dead ends: 508 [2021-11-07 09:00:30,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1076.42ms TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2021-11-07 09:00:30,693 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 438 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 34 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9944.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.26ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10517.92ms IncrementalHoareTripleChecker+Time [2021-11-07 09:00:30,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 1776 Invalid, 697 Unknown, 0 Unchecked, 9.26ms Time], IncrementalHoareTripleChecker [34 Valid, 659 Invalid, 4 Unknown, 0 Unchecked, 10517.92ms Time] [2021-11-07 09:00:30,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2021-11-07 09:00:30,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 373. [2021-11-07 09:00:30,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 362 states have (on average 1.2348066298342542) internal successors, (447), 372 states have internal predecessors, (447), 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) [2021-11-07 09:00:30,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 447 transitions. [2021-11-07 09:00:30,703 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 447 transitions. Word has length 76 [2021-11-07 09:00:30,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:00:30,703 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 447 transitions. [2021-11-07 09:00:30,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 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) [2021-11-07 09:00:30,704 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 447 transitions. [2021-11-07 09:00:30,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 09:00:30,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:00:30,705 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] [2021-11-07 09:00:30,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-07 09:00:30,705 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:00:30,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:00:30,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1700489080, now seen corresponding path program 1 times [2021-11-07 09:00:30,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:00:30,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843867546] [2021-11-07 09:00:30,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:00:30,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:00:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:00:31,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:00:31,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:00:31,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843867546] [2021-11-07 09:00:31,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843867546] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:00:31,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:00:31,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 09:00:31,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204080082] [2021-11-07 09:00:31,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:00:31,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 09:00:31,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:00:31,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 09:00:31,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 09:00:31,222 INFO L87 Difference]: Start difference. First operand 373 states and 447 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2021-11-07 09:00:32,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:00:32,072 INFO L93 Difference]: Finished difference Result 799 states and 939 transitions. [2021-11-07 09:00:32,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 09:00:32,073 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 77 [2021-11-07 09:00:32,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:00:32,074 INFO L225 Difference]: With dead ends: 799 [2021-11-07 09:00:32,074 INFO L226 Difference]: Without dead ends: 436 [2021-11-07 09:00:32,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 251.86ms TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 09:00:32,075 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 119 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 667.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.69ms SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 708.27ms IncrementalHoareTripleChecker+Time [2021-11-07 09:00:32,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 1338 Invalid, 261 Unknown, 0 Unchecked, 3.69ms Time], IncrementalHoareTripleChecker [36 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 708.27ms Time] [2021-11-07 09:00:32,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2021-11-07 09:00:32,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 369. [2021-11-07 09:00:32,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 358 states have (on average 1.2122905027932962) internal successors, (434), 368 states have internal predecessors, (434), 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) [2021-11-07 09:00:32,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 434 transitions. [2021-11-07 09:00:32,085 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 434 transitions. Word has length 77 [2021-11-07 09:00:32,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:00:32,085 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 434 transitions. [2021-11-07 09:00:32,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2021-11-07 09:00:32,086 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 434 transitions. [2021-11-07 09:00:32,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 09:00:32,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:00:32,086 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] [2021-11-07 09:00:32,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-07 09:00:32,087 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:00:32,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:00:32,087 INFO L85 PathProgramCache]: Analyzing trace with hash 563335530, now seen corresponding path program 1 times [2021-11-07 09:00:32,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:00:32,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007084756] [2021-11-07 09:00:32,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:00:32,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:00:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:00:32,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:00:32,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:00:32,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007084756] [2021-11-07 09:00:32,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007084756] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:00:32,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:00:32,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 09:00:32,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887754044] [2021-11-07 09:00:32,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:00:32,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 09:00:32,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:00:32,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 09:00:32,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-07 09:00:32,738 INFO L87 Difference]: Start difference. First operand 369 states and 434 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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) [2021-11-07 09:00:34,783 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:36,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:39,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:00:39,496 INFO L93 Difference]: Finished difference Result 739 states and 861 transitions. [2021-11-07 09:00:39,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 09:00:39,498 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 81 [2021-11-07 09:00:39,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:00:39,499 INFO L225 Difference]: With dead ends: 739 [2021-11-07 09:00:39,499 INFO L226 Difference]: Without dead ends: 396 [2021-11-07 09:00:39,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 730.33ms TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-11-07 09:00:39,500 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 479 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 67 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5834.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.19ms SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6174.73ms IncrementalHoareTripleChecker+Time [2021-11-07 09:00:39,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [479 Valid, 1026 Invalid, 625 Unknown, 0 Unchecked, 7.19ms Time], IncrementalHoareTripleChecker [67 Valid, 556 Invalid, 2 Unknown, 0 Unchecked, 6174.73ms Time] [2021-11-07 09:00:39,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-11-07 09:00:39,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 277. [2021-11-07 09:00:39,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 266 states have (on average 1.1917293233082706) internal successors, (317), 276 states have internal predecessors, (317), 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) [2021-11-07 09:00:39,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 317 transitions. [2021-11-07 09:00:39,509 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 317 transitions. Word has length 81 [2021-11-07 09:00:39,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:00:39,510 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 317 transitions. [2021-11-07 09:00:39,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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) [2021-11-07 09:00:39,510 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 317 transitions. [2021-11-07 09:00:39,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 09:00:39,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:00:39,511 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] [2021-11-07 09:00:39,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-07 09:00:39,511 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:00:39,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:00:39,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1390225900, now seen corresponding path program 1 times [2021-11-07 09:00:39,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:00:39,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877268520] [2021-11-07 09:00:39,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:00:39,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:00:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:00:39,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:00:39,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:00:39,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877268520] [2021-11-07 09:00:39,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877268520] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:00:39,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:00:39,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 09:00:39,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004147396] [2021-11-07 09:00:39,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:00:39,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 09:00:39,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:00:39,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 09:00:39,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 09:00:39,946 INFO L87 Difference]: Start difference. First operand 277 states and 317 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2021-11-07 09:00:41,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:42,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:00:42,762 INFO L93 Difference]: Finished difference Result 570 states and 648 transitions. [2021-11-07 09:00:42,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 09:00:42,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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 81 [2021-11-07 09:00:42,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:00:42,764 INFO L225 Difference]: With dead ends: 570 [2021-11-07 09:00:42,764 INFO L226 Difference]: Without dead ends: 324 [2021-11-07 09:00:42,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 76.35ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 09:00:42,765 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 331 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2607.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.83ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2769.72ms IncrementalHoareTripleChecker+Time [2021-11-07 09:00:42,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 441 Invalid, 233 Unknown, 0 Unchecked, 2.83ms Time], IncrementalHoareTripleChecker [27 Valid, 205 Invalid, 1 Unknown, 0 Unchecked, 2769.72ms Time] [2021-11-07 09:00:42,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-11-07 09:00:42,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 238. [2021-11-07 09:00:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 227 states have (on average 1.171806167400881) internal successors, (266), 237 states have internal predecessors, (266), 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) [2021-11-07 09:00:42,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 266 transitions. [2021-11-07 09:00:42,772 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 266 transitions. Word has length 81 [2021-11-07 09:00:42,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:00:42,773 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 266 transitions. [2021-11-07 09:00:42,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2021-11-07 09:00:42,773 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 266 transitions. [2021-11-07 09:00:42,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 09:00:42,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:00:42,774 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] [2021-11-07 09:00:42,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-07 09:00:42,774 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:00:42,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:00:42,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1243591532, now seen corresponding path program 1 times [2021-11-07 09:00:42,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:00:42,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532647453] [2021-11-07 09:00:42,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:00:42,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:00:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:00:44,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:00:44,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:00:44,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532647453] [2021-11-07 09:00:44,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532647453] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:00:44,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:00:44,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-07 09:00:44,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362969027] [2021-11-07 09:00:44,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:00:44,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 09:00:44,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:00:44,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 09:00:44,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-07 09:00:44,093 INFO L87 Difference]: Start difference. First operand 238 states and 266 transitions. Second operand has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 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) [2021-11-07 09:00:46,135 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:48,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:50,385 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:52,504 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:54,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:56,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:58,858 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:01,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:01:01,778 INFO L93 Difference]: Finished difference Result 518 states and 573 transitions. [2021-11-07 09:01:01,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 09:01:01,779 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 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 81 [2021-11-07 09:01:01,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:01:01,780 INFO L225 Difference]: With dead ends: 518 [2021-11-07 09:01:01,780 INFO L226 Difference]: Without dead ends: 311 [2021-11-07 09:01:01,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1313.60ms TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2021-11-07 09:01:01,781 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 514 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 58 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15858.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.78ms SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16795.01ms IncrementalHoareTripleChecker+Time [2021-11-07 09:01:01,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [514 Valid, 1467 Invalid, 754 Unknown, 0 Unchecked, 13.78ms Time], IncrementalHoareTripleChecker [58 Valid, 689 Invalid, 7 Unknown, 0 Unchecked, 16795.01ms Time] [2021-11-07 09:01:01,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-11-07 09:01:01,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 257. [2021-11-07 09:01:01,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 246 states have (on average 1.1585365853658536) internal successors, (285), 256 states have internal predecessors, (285), 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) [2021-11-07 09:01:01,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 285 transitions. [2021-11-07 09:01:01,788 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 285 transitions. Word has length 81 [2021-11-07 09:01:01,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:01:01,788 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 285 transitions. [2021-11-07 09:01:01,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 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) [2021-11-07 09:01:01,788 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 285 transitions. [2021-11-07 09:01:01,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 09:01:01,789 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:01:01,789 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, 1, 1] [2021-11-07 09:01:01,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-07 09:01:01,789 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:01:01,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:01:01,790 INFO L85 PathProgramCache]: Analyzing trace with hash 819944810, now seen corresponding path program 1 times [2021-11-07 09:01:01,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:01:01,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111491412] [2021-11-07 09:01:01,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:01:01,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:01:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:01:06,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:01:06,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:01:06,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111491412] [2021-11-07 09:01:06,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111491412] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:01:06,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:01:06,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 09:01:06,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664523876] [2021-11-07 09:01:06,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:01:06,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 09:01:06,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:01:06,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 09:01:06,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-07 09:01:06,184 INFO L87 Difference]: Start difference. First operand 257 states and 285 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 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) [2021-11-07 09:01:08,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:10,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:12,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:14,564 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:17,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:01:17,533 INFO L93 Difference]: Finished difference Result 521 states and 578 transitions. [2021-11-07 09:01:17,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-07 09:01:17,533 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 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 81 [2021-11-07 09:01:17,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:01:17,535 INFO L225 Difference]: With dead ends: 521 [2021-11-07 09:01:17,535 INFO L226 Difference]: Without dead ends: 368 [2021-11-07 09:01:17,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 2125.41ms TimeCoverageRelationStatistics Valid=243, Invalid=627, Unknown=0, NotChecked=0, Total=870 [2021-11-07 09:01:17,537 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 651 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 40 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9029.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.04ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9552.33ms IncrementalHoareTripleChecker+Time [2021-11-07 09:01:17,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [651 Valid, 1354 Invalid, 438 Unknown, 0 Unchecked, 6.04ms Time], IncrementalHoareTripleChecker [40 Valid, 394 Invalid, 4 Unknown, 0 Unchecked, 9552.33ms Time] [2021-11-07 09:01:17,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-11-07 09:01:17,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 280. [2021-11-07 09:01:17,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 269 states have (on average 1.1486988847583643) internal successors, (309), 279 states have internal predecessors, (309), 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) [2021-11-07 09:01:17,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 309 transitions. [2021-11-07 09:01:17,549 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 309 transitions. Word has length 81 [2021-11-07 09:01:17,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:01:17,550 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 309 transitions. [2021-11-07 09:01:17,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 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) [2021-11-07 09:01:17,550 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 309 transitions. [2021-11-07 09:01:17,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 09:01:17,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:01:17,550 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] [2021-11-07 09:01:17,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-07 09:01:17,551 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:01:17,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:01:17,551 INFO L85 PathProgramCache]: Analyzing trace with hash -2075047861, now seen corresponding path program 1 times [2021-11-07 09:01:17,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:01:17,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494628956] [2021-11-07 09:01:17,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:01:17,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:01:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:01:19,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:01:19,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:01:19,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494628956] [2021-11-07 09:01:19,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494628956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:01:19,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:01:19,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-07 09:01:19,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865761324] [2021-11-07 09:01:19,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:01:19,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-07 09:01:19,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:01:19,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-07 09:01:19,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-11-07 09:01:19,283 INFO L87 Difference]: Start difference. First operand 280 states and 309 transitions. Second operand has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 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) [2021-11-07 09:01:21,339 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:23,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:25,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:27,708 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:29,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:31,977 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:34,118 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:36,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:41,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:01:41,482 INFO L93 Difference]: Finished difference Result 536 states and 593 transitions. [2021-11-07 09:01:41,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 09:01:41,483 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 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 84 [2021-11-07 09:01:41,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:01:41,484 INFO L225 Difference]: With dead ends: 536 [2021-11-07 09:01:41,484 INFO L226 Difference]: Without dead ends: 383 [2021-11-07 09:01:41,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 2333.64ms TimeCoverageRelationStatistics Valid=246, Invalid=684, Unknown=0, NotChecked=0, Total=930 [2021-11-07 09:01:41,491 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 741 mSDsluCounter, 2075 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 55 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19297.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.17ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20509.83ms IncrementalHoareTripleChecker+Time [2021-11-07 09:01:41,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [741 Valid, 2355 Invalid, 1181 Unknown, 0 Unchecked, 16.17ms Time], IncrementalHoareTripleChecker [55 Valid, 1118 Invalid, 8 Unknown, 0 Unchecked, 20509.83ms Time] [2021-11-07 09:01:41,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2021-11-07 09:01:41,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 270. [2021-11-07 09:01:41,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 259 states have (on average 1.1544401544401544) internal successors, (299), 269 states have internal predecessors, (299), 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) [2021-11-07 09:01:41,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 299 transitions. [2021-11-07 09:01:41,502 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 299 transitions. Word has length 84 [2021-11-07 09:01:41,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:01:41,502 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 299 transitions. [2021-11-07 09:01:41,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 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) [2021-11-07 09:01:41,502 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 299 transitions. [2021-11-07 09:01:41,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 09:01:41,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:01:41,503 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] [2021-11-07 09:01:41,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-07 09:01:41,503 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:01:41,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:01:41,504 INFO L85 PathProgramCache]: Analyzing trace with hash -154356109, now seen corresponding path program 1 times [2021-11-07 09:01:41,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:01:41,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680279788] [2021-11-07 09:01:41,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:01:41,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:01:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:01:42,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:01:42,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:01:42,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680279788] [2021-11-07 09:01:42,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680279788] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:01:42,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:01:42,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 09:01:42,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400455825] [2021-11-07 09:01:42,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:01:42,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 09:01:42,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:01:42,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 09:01:42,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 09:01:42,247 INFO L87 Difference]: Start difference. First operand 270 states and 299 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2021-11-07 09:01:44,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:45,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:01:45,499 INFO L93 Difference]: Finished difference Result 564 states and 632 transitions. [2021-11-07 09:01:45,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 09:01:45,500 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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 87 [2021-11-07 09:01:45,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:01:45,501 INFO L225 Difference]: With dead ends: 564 [2021-11-07 09:01:45,501 INFO L226 Difference]: Without dead ends: 418 [2021-11-07 09:01:45,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 548.98ms TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-11-07 09:01:45,502 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 473 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2727.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.82ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2908.73ms IncrementalHoareTripleChecker+Time [2021-11-07 09:01:45,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [473 Valid, 645 Invalid, 271 Unknown, 0 Unchecked, 3.82ms Time], IncrementalHoareTripleChecker [25 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 2908.73ms Time] [2021-11-07 09:01:45,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-11-07 09:01:45,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 290. [2021-11-07 09:01:45,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 279 states have (on average 1.1433691756272402) internal successors, (319), 289 states have internal predecessors, (319), 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) [2021-11-07 09:01:45,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 319 transitions. [2021-11-07 09:01:45,511 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 319 transitions. Word has length 87 [2021-11-07 09:01:45,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:01:45,511 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 319 transitions. [2021-11-07 09:01:45,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2021-11-07 09:01:45,512 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 319 transitions. [2021-11-07 09:01:45,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 09:01:45,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:01:45,512 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] [2021-11-07 09:01:45,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-07 09:01:45,513 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:01:45,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:01:45,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1742704011, now seen corresponding path program 1 times [2021-11-07 09:01:45,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:01:45,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479709852] [2021-11-07 09:01:45,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:01:45,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:01:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:01:46,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:01:46,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:01:46,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479709852] [2021-11-07 09:01:46,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479709852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:01:46,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:01:46,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 09:01:46,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41417364] [2021-11-07 09:01:46,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:01:46,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 09:01:46,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:01:46,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 09:01:46,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-07 09:01:46,307 INFO L87 Difference]: Start difference. First operand 290 states and 319 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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) [2021-11-07 09:01:48,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:50,502 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:52,677 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:54,816 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 [] [2021-11-07 09:01:56,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:01:56,810 INFO L93 Difference]: Finished difference Result 491 states and 545 transitions. [2021-11-07 09:01:56,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 09:01:56,810 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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 87 [2021-11-07 09:01:56,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:01:56,811 INFO L225 Difference]: With dead ends: 491 [2021-11-07 09:01:56,811 INFO L226 Difference]: Without dead ends: 418 [2021-11-07 09:01:56,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 717.59ms TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2021-11-07 09:01:56,812 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 680 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 45 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9309.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.52ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9991.30ms IncrementalHoareTripleChecker+Time [2021-11-07 09:01:56,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [680 Valid, 1123 Invalid, 477 Unknown, 0 Unchecked, 6.52ms Time], IncrementalHoareTripleChecker [45 Valid, 428 Invalid, 4 Unknown, 0 Unchecked, 9991.30ms Time] [2021-11-07 09:01:56,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-11-07 09:01:56,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 303. [2021-11-07 09:01:56,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 292 states have (on average 1.1506849315068493) internal successors, (336), 302 states have internal predecessors, (336), 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) [2021-11-07 09:01:56,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 336 transitions. [2021-11-07 09:01:56,822 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 336 transitions. Word has length 87 [2021-11-07 09:01:56,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:01:56,822 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 336 transitions. [2021-11-07 09:01:56,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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) [2021-11-07 09:01:56,822 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 336 transitions. [2021-11-07 09:01:56,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 09:01:56,823 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:01:56,824 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] [2021-11-07 09:01:56,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-07 09:01:56,824 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:01:56,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:01:56,825 INFO L85 PathProgramCache]: Analyzing trace with hash -309693829, now seen corresponding path program 1 times [2021-11-07 09:01:56,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:01:56,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780281235] [2021-11-07 09:01:56,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:01:56,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:02:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:02:02,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:02:02,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:02:02,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780281235] [2021-11-07 09:02:02,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780281235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:02:02,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:02:02,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-07 09:02:02,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173871781] [2021-11-07 09:02:02,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:02:02,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 09:02:02,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:02:02,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 09:02:02,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-07 09:02:02,408 INFO L87 Difference]: Start difference. First operand 303 states and 336 transitions. Second operand has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 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) [2021-11-07 09:02:04,455 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:06,568 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:08,727 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:10,853 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:12,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:15,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:02:15,225 INFO L93 Difference]: Finished difference Result 495 states and 548 transitions. [2021-11-07 09:02:15,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 09:02:15,225 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 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 87 [2021-11-07 09:02:15,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:02:15,226 INFO L225 Difference]: With dead ends: 495 [2021-11-07 09:02:15,226 INFO L226 Difference]: Without dead ends: 386 [2021-11-07 09:02:15,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1551.19ms TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2021-11-07 09:02:15,227 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 926 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 62 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11154.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.73ms SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11869.15ms IncrementalHoareTripleChecker+Time [2021-11-07 09:02:15,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [926 Valid, 993 Invalid, 464 Unknown, 0 Unchecked, 6.73ms Time], IncrementalHoareTripleChecker [62 Valid, 397 Invalid, 5 Unknown, 0 Unchecked, 11869.15ms Time] [2021-11-07 09:02:15,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2021-11-07 09:02:15,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 248. [2021-11-07 09:02:15,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 237 states have (on average 1.1476793248945147) internal successors, (272), 247 states have internal predecessors, (272), 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) [2021-11-07 09:02:15,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 272 transitions. [2021-11-07 09:02:15,236 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 272 transitions. Word has length 87 [2021-11-07 09:02:15,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:02:15,236 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 272 transitions. [2021-11-07 09:02:15,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 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) [2021-11-07 09:02:15,236 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 272 transitions. [2021-11-07 09:02:15,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 09:02:15,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:02:15,237 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] [2021-11-07 09:02:15,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-07 09:02:15,237 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:02:15,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:02:15,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1768871925, now seen corresponding path program 1 times [2021-11-07 09:02:15,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:02:15,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837012840] [2021-11-07 09:02:15,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:02:15,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:02:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:02:16,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:02:16,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:02:16,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837012840] [2021-11-07 09:02:16,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837012840] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:02:16,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:02:16,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 09:02:16,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449460716] [2021-11-07 09:02:16,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:02:16,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 09:02:16,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:02:16,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 09:02:16,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 09:02:16,495 INFO L87 Difference]: Start difference. First operand 248 states and 272 transitions. Second operand has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 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) [2021-11-07 09:02:18,538 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:20,670 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:22,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:24,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:27,117 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:29,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:31,365 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 [] [2021-11-07 09:02:33,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:02:33,803 INFO L93 Difference]: Finished difference Result 609 states and 669 transitions. [2021-11-07 09:02:33,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 09:02:33,803 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 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 87 [2021-11-07 09:02:33,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:02:33,804 INFO L225 Difference]: With dead ends: 609 [2021-11-07 09:02:33,804 INFO L226 Difference]: Without dead ends: 475 [2021-11-07 09:02:33,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1256.14ms TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2021-11-07 09:02:33,805 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 773 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 60 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15323.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.90ms SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16359.04ms IncrementalHoareTripleChecker+Time [2021-11-07 09:02:33,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [773 Valid, 1235 Invalid, 537 Unknown, 0 Unchecked, 6.90ms Time], IncrementalHoareTripleChecker [60 Valid, 470 Invalid, 7 Unknown, 0 Unchecked, 16359.04ms Time] [2021-11-07 09:02:33,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2021-11-07 09:02:33,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 278. [2021-11-07 09:02:33,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 267 states have (on average 1.1348314606741574) internal successors, (303), 277 states have internal predecessors, (303), 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) [2021-11-07 09:02:33,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 303 transitions. [2021-11-07 09:02:33,815 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 303 transitions. Word has length 87 [2021-11-07 09:02:33,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:02:33,815 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 303 transitions. [2021-11-07 09:02:33,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 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) [2021-11-07 09:02:33,816 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 303 transitions. [2021-11-07 09:02:33,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 09:02:33,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:02:33,816 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] [2021-11-07 09:02:33,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-07 09:02:33,817 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:02:33,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:02:33,817 INFO L85 PathProgramCache]: Analyzing trace with hash 180524023, now seen corresponding path program 1 times [2021-11-07 09:02:33,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:02:33,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200923969] [2021-11-07 09:02:33,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:02:33,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:02:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:02:35,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:02:35,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:02:35,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200923969] [2021-11-07 09:02:35,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200923969] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:02:35,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:02:35,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-07 09:02:35,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390622459] [2021-11-07 09:02:35,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:02:35,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-07 09:02:35,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:02:35,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 09:02:35,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-11-07 09:02:35,285 INFO L87 Difference]: Start difference. First operand 278 states and 303 transitions. Second operand has 16 states, 16 states have (on average 5.4375) internal successors, (87), 16 states have internal predecessors, (87), 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) [2021-11-07 09:02:37,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:39,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:41,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:43,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:45,844 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:47,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:50,056 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:52,186 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:54,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:56,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:58,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:01,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:03:01,579 INFO L93 Difference]: Finished difference Result 522 states and 572 transitions. [2021-11-07 09:03:01,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 09:03:01,579 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.4375) internal successors, (87), 16 states have internal predecessors, (87), 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 87 [2021-11-07 09:03:01,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:03:01,581 INFO L225 Difference]: With dead ends: 522 [2021-11-07 09:03:01,581 INFO L226 Difference]: Without dead ends: 378 [2021-11-07 09:03:01,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1260.94ms TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2021-11-07 09:03:01,584 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 760 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 56 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24240.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 2019 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.11ms SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25609.32ms IncrementalHoareTripleChecker+Time [2021-11-07 09:03:01,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [760 Valid, 2019 Invalid, 872 Unknown, 0 Unchecked, 11.11ms Time], IncrementalHoareTripleChecker [56 Valid, 805 Invalid, 11 Unknown, 0 Unchecked, 25609.32ms Time] [2021-11-07 09:03:01,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2021-11-07 09:03:01,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 319. [2021-11-07 09:03:01,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 308 states have (on average 1.12012987012987) internal successors, (345), 318 states have internal predecessors, (345), 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) [2021-11-07 09:03:01,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 345 transitions. [2021-11-07 09:03:01,596 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 345 transitions. Word has length 87 [2021-11-07 09:03:01,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:03:01,597 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 345 transitions. [2021-11-07 09:03:01,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.4375) internal successors, (87), 16 states have internal predecessors, (87), 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) [2021-11-07 09:03:01,597 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 345 transitions. [2021-11-07 09:03:01,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 09:03:01,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:03:01,598 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] [2021-11-07 09:03:01,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-07 09:03:01,598 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:03:01,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:03:01,599 INFO L85 PathProgramCache]: Analyzing trace with hash 683816117, now seen corresponding path program 1 times [2021-11-07 09:03:01,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:03:01,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056482249] [2021-11-07 09:03:01,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:03:01,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:03:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:03:04,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:03:04,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:03:04,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056482249] [2021-11-07 09:03:04,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056482249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:03:04,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:03:04,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-07 09:03:04,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145881905] [2021-11-07 09:03:04,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:03:04,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 09:03:04,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:03:04,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 09:03:04,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-07 09:03:04,881 INFO L87 Difference]: Start difference. First operand 319 states and 345 transitions. Second operand has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 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) [2021-11-07 09:03:06,933 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:09,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:11,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:13,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:15,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:17,595 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:19,679 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 [] [2021-11-07 09:03:27,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:03:27,009 INFO L93 Difference]: Finished difference Result 689 states and 749 transitions. [2021-11-07 09:03:27,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-07 09:03:27,009 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 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 87 [2021-11-07 09:03:27,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:03:27,010 INFO L225 Difference]: With dead ends: 689 [2021-11-07 09:03:27,010 INFO L226 Difference]: Without dead ends: 464 [2021-11-07 09:03:27,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 3903.91ms TimeCoverageRelationStatistics Valid=229, Invalid=583, Unknown=0, NotChecked=0, Total=812 [2021-11-07 09:03:27,011 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 405 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 33 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17794.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.22ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18845.91ms IncrementalHoareTripleChecker+Time [2021-11-07 09:03:27,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 2546 Invalid, 1438 Unknown, 0 Unchecked, 15.22ms Time], IncrementalHoareTripleChecker [33 Valid, 1398 Invalid, 7 Unknown, 0 Unchecked, 18845.91ms Time] [2021-11-07 09:03:27,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-11-07 09:03:27,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 319. [2021-11-07 09:03:27,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 308 states have (on average 1.1168831168831168) internal successors, (344), 318 states have internal predecessors, (344), 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) [2021-11-07 09:03:27,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 344 transitions. [2021-11-07 09:03:27,023 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 344 transitions. Word has length 87 [2021-11-07 09:03:27,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:03:27,023 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 344 transitions. [2021-11-07 09:03:27,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 states have internal predecessors, (87), 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) [2021-11-07 09:03:27,024 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 344 transitions. [2021-11-07 09:03:27,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-07 09:03:27,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:03:27,024 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] [2021-11-07 09:03:27,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-07 09:03:27,025 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:03:27,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:03:27,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1415784400, now seen corresponding path program 1 times [2021-11-07 09:03:27,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:03:27,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747228856] [2021-11-07 09:03:27,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:03:27,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:03:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:03:27,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:03:27,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:03:27,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747228856] [2021-11-07 09:03:27,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747228856] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:03:27,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:03:27,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 09:03:27,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778033091] [2021-11-07 09:03:27,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:03:27,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 09:03:27,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:03:27,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 09:03:27,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-07 09:03:27,413 INFO L87 Difference]: Start difference. First operand 319 states and 344 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 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) [2021-11-07 09:03:28,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:03:28,533 INFO L93 Difference]: Finished difference Result 428 states and 462 transitions. [2021-11-07 09:03:28,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 09:03:28,534 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 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 89 [2021-11-07 09:03:28,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:03:28,535 INFO L225 Difference]: With dead ends: 428 [2021-11-07 09:03:28,535 INFO L226 Difference]: Without dead ends: 411 [2021-11-07 09:03:28,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 469.34ms TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-11-07 09:03:28,535 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 235 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 723.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.26ms SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 772.12ms IncrementalHoareTripleChecker+Time [2021-11-07 09:03:28,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 1068 Invalid, 384 Unknown, 0 Unchecked, 4.26ms Time], IncrementalHoareTripleChecker [87 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 772.12ms Time] [2021-11-07 09:03:28,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2021-11-07 09:03:28,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 327. [2021-11-07 09:03:28,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 316 states have (on average 1.110759493670886) internal successors, (351), 326 states have internal predecessors, (351), 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) [2021-11-07 09:03:28,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 351 transitions. [2021-11-07 09:03:28,547 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 351 transitions. Word has length 89 [2021-11-07 09:03:28,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:03:28,548 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 351 transitions. [2021-11-07 09:03:28,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 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) [2021-11-07 09:03:28,548 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 351 transitions. [2021-11-07 09:03:28,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 09:03:28,548 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:03:28,549 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] [2021-11-07 09:03:28,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-07 09:03:28,549 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:03:28,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:03:28,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1801234922, now seen corresponding path program 1 times [2021-11-07 09:03:28,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:03:28,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92780079] [2021-11-07 09:03:28,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:03:28,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:03:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:03:36,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:03:36,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:03:36,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92780079] [2021-11-07 09:03:36,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92780079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:03:36,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:03:36,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-11-07 09:03:36,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634104592] [2021-11-07 09:03:36,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:03:36,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-07 09:03:36,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:03:36,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-07 09:03:36,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2021-11-07 09:03:36,509 INFO L87 Difference]: Start difference. First operand 327 states and 351 transitions. Second operand has 20 states, 20 states have (on average 4.5) internal successors, (90), 20 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) [2021-11-07 09:03:38,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:40,682 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:42,806 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:44,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:47,044 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:49,170 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 [] [2021-11-07 09:03:53,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:03:53,918 INFO L93 Difference]: Finished difference Result 540 states and 582 transitions. [2021-11-07 09:03:53,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-07 09:03:53,919 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.5) internal successors, (90), 20 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 [2021-11-07 09:03:53,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:03:53,920 INFO L225 Difference]: With dead ends: 540 [2021-11-07 09:03:53,920 INFO L226 Difference]: Without dead ends: 467 [2021-11-07 09:03:53,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 3730.69ms TimeCoverageRelationStatistics Valid=374, Invalid=886, Unknown=0, NotChecked=0, Total=1260 [2021-11-07 09:03:53,921 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 1451 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 109 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13956.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.55ms SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14823.91ms IncrementalHoareTripleChecker+Time [2021-11-07 09:03:53,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1451 Valid, 1463 Invalid, 740 Unknown, 0 Unchecked, 9.55ms Time], IncrementalHoareTripleChecker [109 Valid, 625 Invalid, 6 Unknown, 0 Unchecked, 14823.91ms Time] [2021-11-07 09:03:53,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-11-07 09:03:53,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 340. [2021-11-07 09:03:53,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 329 states have (on average 1.1398176291793314) internal successors, (375), 339 states have internal predecessors, (375), 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) [2021-11-07 09:03:53,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 375 transitions. [2021-11-07 09:03:53,937 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 375 transitions. Word has length 90 [2021-11-07 09:03:53,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:03:53,938 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 375 transitions. [2021-11-07 09:03:53,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.5) internal successors, (90), 20 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) [2021-11-07 09:03:53,938 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 375 transitions. [2021-11-07 09:03:53,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-07 09:03:53,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:03:53,939 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] [2021-11-07 09:03:53,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-07 09:03:53,940 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:03:53,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:03:53,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1412627311, now seen corresponding path program 1 times [2021-11-07 09:03:53,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:03:53,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945709137] [2021-11-07 09:03:53,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:03:53,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:03:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:03:54,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:03:54,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:03:54,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945709137] [2021-11-07 09:03:54,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945709137] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:03:54,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:03:54,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 09:03:54,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745374878] [2021-11-07 09:03:54,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:03:54,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 09:03:54,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:03:54,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 09:03:54,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 09:03:54,760 INFO L87 Difference]: Start difference. First operand 340 states and 375 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 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) [2021-11-07 09:03:56,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:58,972 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:01,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:02,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:04:02,371 INFO L93 Difference]: Finished difference Result 549 states and 611 transitions. [2021-11-07 09:04:02,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 09:04:02,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 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 [2021-11-07 09:04:02,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:04:02,373 INFO L225 Difference]: With dead ends: 549 [2021-11-07 09:04:02,373 INFO L226 Difference]: Without dead ends: 475 [2021-11-07 09:04:02,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 285.80ms TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-07 09:04:02,374 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 396 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 22 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6893.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.35ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7401.43ms IncrementalHoareTripleChecker+Time [2021-11-07 09:04:02,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 796 Invalid, 324 Unknown, 0 Unchecked, 4.35ms Time], IncrementalHoareTripleChecker [22 Valid, 299 Invalid, 3 Unknown, 0 Unchecked, 7401.43ms Time] [2021-11-07 09:04:02,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2021-11-07 09:04:02,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 340. [2021-11-07 09:04:02,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 329 states have (on average 1.1398176291793314) internal successors, (375), 339 states have internal predecessors, (375), 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) [2021-11-07 09:04:02,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 375 transitions. [2021-11-07 09:04:02,390 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 375 transitions. Word has length 92 [2021-11-07 09:04:02,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:04:02,390 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 375 transitions. [2021-11-07 09:04:02,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 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) [2021-11-07 09:04:02,391 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 375 transitions. [2021-11-07 09:04:02,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-07 09:04:02,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:04:02,391 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] [2021-11-07 09:04:02,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-07 09:04:02,392 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:04:02,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:04:02,392 INFO L85 PathProgramCache]: Analyzing trace with hash 192807151, now seen corresponding path program 1 times [2021-11-07 09:04:02,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:04:02,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690191967] [2021-11-07 09:04:02,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:04:02,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:04:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:04:06,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:04:06,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:04:06,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690191967] [2021-11-07 09:04:06,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690191967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:04:06,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:04:06,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-07 09:04:06,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824734693] [2021-11-07 09:04:06,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:04:06,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-07 09:04:06,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:04:06,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-07 09:04:06,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-11-07 09:04:06,675 INFO L87 Difference]: Start difference. First operand 340 states and 375 transitions. Second operand has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 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) [2021-11-07 09:04:08,720 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:10,870 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:13,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:15,151 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:22,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:04:22,376 INFO L93 Difference]: Finished difference Result 575 states and 633 transitions. [2021-11-07 09:04:22,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-07 09:04:22,376 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 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 [2021-11-07 09:04:22,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:04:22,377 INFO L225 Difference]: With dead ends: 575 [2021-11-07 09:04:22,377 INFO L226 Difference]: Without dead ends: 571 [2021-11-07 09:04:22,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 907 ImplicationChecksByTransitivity, 5699.34ms TimeCoverageRelationStatistics Valid=551, Invalid=2871, Unknown=0, NotChecked=0, Total=3422 [2021-11-07 09:04:22,379 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 1413 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 252 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9976.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.47ms SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10694.57ms IncrementalHoareTripleChecker+Time [2021-11-07 09:04:22,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1413 Valid, 1193 Invalid, 969 Unknown, 0 Unchecked, 12.47ms Time], IncrementalHoareTripleChecker [252 Valid, 713 Invalid, 4 Unknown, 0 Unchecked, 10694.57ms Time] [2021-11-07 09:04:22,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2021-11-07 09:04:22,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 340. [2021-11-07 09:04:22,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 330 states have (on average 1.1424242424242423) internal successors, (377), 339 states have internal predecessors, (377), 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) [2021-11-07 09:04:22,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 377 transitions. [2021-11-07 09:04:22,393 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 377 transitions. Word has length 92 [2021-11-07 09:04:22,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:04:22,393 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 377 transitions. [2021-11-07 09:04:22,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 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) [2021-11-07 09:04:22,393 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 377 transitions. [2021-11-07 09:04:22,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-07 09:04:22,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:04:22,394 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] [2021-11-07 09:04:22,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-07 09:04:22,394 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:04:22,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:04:22,395 INFO L85 PathProgramCache]: Analyzing trace with hash -722458194, now seen corresponding path program 1 times [2021-11-07 09:04:22,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:04:22,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082795030] [2021-11-07 09:04:22,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:04:22,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:04:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:04:22,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:04:22,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:04:22,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082795030] [2021-11-07 09:04:22,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082795030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:04:22,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:04:22,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 09:04:22,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973713654] [2021-11-07 09:04:22,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:04:22,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 09:04:22,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:04:22,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 09:04:22,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 09:04:22,625 INFO L87 Difference]: Start difference. First operand 340 states and 377 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2021-11-07 09:04:22,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:04:22,737 INFO L93 Difference]: Finished difference Result 398 states and 428 transitions. [2021-11-07 09:04:22,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 09:04:22,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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 94 [2021-11-07 09:04:22,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:04:22,738 INFO L225 Difference]: With dead ends: 398 [2021-11-07 09:04:22,739 INFO L226 Difference]: Without dead ends: 360 [2021-11-07 09:04:22,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 97.67ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 09:04:22,739 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 101 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.57ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.48ms IncrementalHoareTripleChecker+Time [2021-11-07 09:04:22,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 797 Invalid, 16 Unknown, 0 Unchecked, 0.57ms Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 45.48ms Time] [2021-11-07 09:04:22,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-07 09:04:22,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 334. [2021-11-07 09:04:22,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 324 states have (on average 1.132716049382716) internal successors, (367), 333 states have internal predecessors, (367), 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) [2021-11-07 09:04:22,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 367 transitions. [2021-11-07 09:04:22,755 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 367 transitions. Word has length 94 [2021-11-07 09:04:22,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:04:22,755 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 367 transitions. [2021-11-07 09:04:22,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2021-11-07 09:04:22,756 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 367 transitions. [2021-11-07 09:04:22,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-07 09:04:22,756 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:04:22,756 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] [2021-11-07 09:04:22,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-07 09:04:22,757 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:04:22,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:04:22,758 INFO L85 PathProgramCache]: Analyzing trace with hash -920472327, now seen corresponding path program 1 times [2021-11-07 09:04:22,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:04:22,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753376121] [2021-11-07 09:04:22,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:04:22,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:04:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:04:23,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:04:23,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:04:23,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753376121] [2021-11-07 09:04:23,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753376121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:04:23,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:04:23,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 09:04:23,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177791152] [2021-11-07 09:04:23,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:04:23,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 09:04:23,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:04:23,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 09:04:23,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 09:04:23,123 INFO L87 Difference]: Start difference. First operand 334 states and 367 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2021-11-07 09:04:23,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:04:23,444 INFO L93 Difference]: Finished difference Result 360 states and 395 transitions. [2021-11-07 09:04:23,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 09:04:23,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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 [2021-11-07 09:04:23,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:04:23,445 INFO L225 Difference]: With dead ends: 360 [2021-11-07 09:04:23,445 INFO L226 Difference]: Without dead ends: 358 [2021-11-07 09:04:23,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 224.95ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 09:04:23,446 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 241 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 175.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.39ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 188.83ms IncrementalHoareTripleChecker+Time [2021-11-07 09:04:23,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 542 Invalid, 67 Unknown, 0 Unchecked, 1.39ms Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 188.83ms Time] [2021-11-07 09:04:23,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-11-07 09:04:23,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 332. [2021-11-07 09:04:23,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 323 states have (on average 1.1269349845201238) internal successors, (364), 331 states have internal predecessors, (364), 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) [2021-11-07 09:04:23,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 364 transitions. [2021-11-07 09:04:23,460 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 364 transitions. Word has length 95 [2021-11-07 09:04:23,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:04:23,460 INFO L470 AbstractCegarLoop]: Abstraction has 332 states and 364 transitions. [2021-11-07 09:04:23,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2021-11-07 09:04:23,460 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 364 transitions. [2021-11-07 09:04:23,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-07 09:04:23,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:04:23,461 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, 1, 1] [2021-11-07 09:04:23,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-07 09:04:23,461 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:04:23,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:04:23,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1328469076, now seen corresponding path program 1 times [2021-11-07 09:04:23,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:04:23,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937054752] [2021-11-07 09:04:23,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:04:23,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:04:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:04:23,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:04:23,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:04:23,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937054752] [2021-11-07 09:04:23,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937054752] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:04:23,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:04:23,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 09:04:23,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868016060] [2021-11-07 09:04:23,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:04:23,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 09:04:23,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:04:23,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 09:04:23,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 09:04:23,833 INFO L87 Difference]: Start difference. First operand 332 states and 364 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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) [2021-11-07 09:04:23,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:04:23,955 INFO L93 Difference]: Finished difference Result 434 states and 468 transitions. [2021-11-07 09:04:23,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 09:04:23,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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 97 [2021-11-07 09:04:23,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:04:23,956 INFO L225 Difference]: With dead ends: 434 [2021-11-07 09:04:23,956 INFO L226 Difference]: Without dead ends: 344 [2021-11-07 09:04:23,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 98.59ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 09:04:23,957 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 220 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.64ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.21ms IncrementalHoareTripleChecker+Time [2021-11-07 09:04:23,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 539 Invalid, 22 Unknown, 0 Unchecked, 0.64ms Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 60.21ms Time] [2021-11-07 09:04:23,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-11-07 09:04:23,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 319. [2021-11-07 09:04:23,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 310 states have (on average 1.1225806451612903) internal successors, (348), 318 states have internal predecessors, (348), 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) [2021-11-07 09:04:23,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 348 transitions. [2021-11-07 09:04:23,969 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 348 transitions. Word has length 97 [2021-11-07 09:04:23,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:04:23,970 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 348 transitions. [2021-11-07 09:04:23,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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) [2021-11-07 09:04:23,970 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 348 transitions. [2021-11-07 09:04:23,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-07 09:04:23,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:04:23,971 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, 1, 1] [2021-11-07 09:04:23,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-07 09:04:23,971 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:04:23,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:04:23,971 INFO L85 PathProgramCache]: Analyzing trace with hash 189495483, now seen corresponding path program 1 times [2021-11-07 09:04:23,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:04:23,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989259741] [2021-11-07 09:04:23,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:04:23,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:04:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:04:27,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:04:27,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:04:27,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989259741] [2021-11-07 09:04:27,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989259741] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:04:27,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:04:27,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-07 09:04:27,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261963223] [2021-11-07 09:04:27,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:04:27,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 09:04:27,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:04:27,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 09:04:27,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-11-07 09:04:27,575 INFO L87 Difference]: Start difference. First operand 319 states and 348 transitions. Second operand has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 15 states have internal predecessors, (97), 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) [2021-11-07 09:04:29,619 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:31,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:34,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:36,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:38,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:04:38,821 INFO L93 Difference]: Finished difference Result 441 states and 478 transitions. [2021-11-07 09:04:38,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 09:04:38,822 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 15 states have internal predecessors, (97), 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 97 [2021-11-07 09:04:38,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:04:38,823 INFO L225 Difference]: With dead ends: 441 [2021-11-07 09:04:38,823 INFO L226 Difference]: Without dead ends: 439 [2021-11-07 09:04:38,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2285.95ms TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2021-11-07 09:04:38,824 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 738 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 40 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9265.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.75ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9879.94ms IncrementalHoareTripleChecker+Time [2021-11-07 09:04:38,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [738 Valid, 885 Invalid, 398 Unknown, 0 Unchecked, 6.75ms Time], IncrementalHoareTripleChecker [40 Valid, 354 Invalid, 4 Unknown, 0 Unchecked, 9879.94ms Time] [2021-11-07 09:04:38,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-11-07 09:04:38,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 354. [2021-11-07 09:04:38,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 345 states have (on average 1.1159420289855073) internal successors, (385), 353 states have internal predecessors, (385), 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) [2021-11-07 09:04:38,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 385 transitions. [2021-11-07 09:04:38,842 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 385 transitions. Word has length 97 [2021-11-07 09:04:38,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:04:38,842 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 385 transitions. [2021-11-07 09:04:38,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 15 states have internal predecessors, (97), 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) [2021-11-07 09:04:38,842 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 385 transitions. [2021-11-07 09:04:38,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-07 09:04:38,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:04:38,843 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, 1, 1, 1, 1] [2021-11-07 09:04:38,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-07 09:04:38,843 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 09:04:38,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:04:38,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1393361552, now seen corresponding path program 1 times [2021-11-07 09:04:38,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:04:38,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651291630] [2021-11-07 09:04:38,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:04:38,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:04:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:04:39,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:04:39,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:04:39,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651291630] [2021-11-07 09:04:39,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651291630] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 09:04:39,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136657460] [2021-11-07 09:04:39,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:04:39,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 09:04:39,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 09:04:39,485 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) [2021-11-07 09:04:39,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 09:04:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:04:40,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 3077 conjuncts, 90 conjunts are in the unsatisfiable core [2021-11-07 09:04:40,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 09:04:40,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 09:04:40,805 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 09:04:40,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-07 09:04:40,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 [2021-11-07 09:04:40,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-07 09:04:41,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 09:04:41,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-07 09:04:41,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 09:04:41,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-07 09:04:42,573 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-07 09:04:42,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 47 [2021-11-07 09:04:42,615 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-07 09:04:42,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 25 [2021-11-07 09:04:43,394 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 09:04:43,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2021-11-07 09:04:43,985 INFO L354 Elim1Store]: treesize reduction 282, result has 22.3 percent of original size [2021-11-07 09:04:43,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 76 treesize of output 133 [2021-11-07 09:04:45,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 09:04:45,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2021-11-07 09:04:45,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 09:04:45,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 09:04:45,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 09:04:45,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 23 [2021-11-07 09:04:45,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 09:04:45,611 INFO L354 Elim1Store]: treesize reduction 74, result has 1.3 percent of original size [2021-11-07 09:04:45,611 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 4 case distinctions, treesize of input 71 treesize of output 34 [2021-11-07 09:04:46,764 INFO L354 Elim1Store]: treesize reduction 80, result has 14.9 percent of original size [2021-11-07 09:04:46,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 108 treesize of output 79 [2021-11-07 09:04:47,217 INFO L354 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2021-11-07 09:04:47,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 55 [2021-11-07 09:04:47,313 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-07 09:04:47,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 55 [2021-11-07 09:05:02,410 INFO L354 Elim1Store]: treesize reduction 1267, result has 13.0 percent of original size [2021-11-07 09:05:02,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 64 case distinctions, treesize of input 202 treesize of output 288 [2021-11-07 09:05:27,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:05:27,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 09:05:48,680 WARN L227 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 53 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-07 09:06:06,018 WARN L227 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-07 09:06:17,917 WARN L227 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-07 09:06:37,496 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7| Int) (|v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.offset_7| Int) (|ULTIMATE.start_aws_hton64_#res| Int)) (or (< 0 |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.offset_7|) (and (forall ((v_prenex_26 Int) (v_prenex_23 Int) (v_prenex_22 Int) (v_prenex_25 Int) (v_prenex_24 Int) (v_prenex_21 Int)) (or (< v_prenex_22 0) (< 9223372036854775807 v_prenex_22) (not (= (mod (select (let ((.cse0 (select (let ((.cse2 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7| (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7|) |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.offset_7| v_prenex_26)) |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.base|) (+ |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset| 8))) (.cse1 (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7| (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7|) |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.offset_7| |ULTIMATE.start_aws_hton64_#res|)))) (store .cse1 .cse2 (let ((.cse3 (mod v_prenex_22 18446744073709551616))) (store (select .cse1 .cse2) (+ .cse3 v_prenex_21) (select (select .cse1 v_prenex_23) (+ .cse3 v_prenex_24)))))) |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.base|))) (store .cse0 |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset| (+ (select .cse0 |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset|) v_prenex_25))) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset|)) 18446744073709551616) 0)))) (forall ((ULTIMATE.start_memcpy_impl_~dst.offset Int) (aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 Int) (ULTIMATE.start_memcpy_impl_~src.base Int) (ULTIMATE.start_memcpy_impl_~src.offset Int) (v_DerPreprocessor_1 Int) (ULTIMATE.start_aws_byte_buf_write_~len Int)) (or (<= 18446744073709551616 aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58) (not (= (mod (select (let ((.cse4 (select (let ((.cse6 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7| (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7|) |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.offset_7| v_DerPreprocessor_1)) |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.base|) (+ |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset| 8))) (.cse5 (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7| (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7|) |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.offset_7| |ULTIMATE.start_aws_hton64_#res|)))) (store .cse5 .cse6 (let ((.cse7 (mod aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 18446744073709551616))) (store (select .cse5 .cse6) (+ (- 18446744073709551616) .cse7 ULTIMATE.start_memcpy_impl_~dst.offset) (select (select .cse5 ULTIMATE.start_memcpy_impl_~src.base) (+ (- 18446744073709551616) .cse7 ULTIMATE.start_memcpy_impl_~src.offset)))))) |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.base|))) (store .cse4 |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset| (+ (select .cse4 |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset|) ULTIMATE.start_aws_byte_buf_write_~len))) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset|)) 18446744073709551616) 0)) (<= aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 9223372036854775807)))) (= (mod (select (select (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7| (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7|) |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.offset_7| |ULTIMATE.start_aws_hton64_#res|)) |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.base|) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset|)) 18446744073709551616) 0))) is different from false [2021-11-07 09:07:07,781 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7| Int) (|v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.offset_7| Int) (|ULTIMATE.start_aws_hton64_#res| Int)) (or (< 0 |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.offset_7|) (and (forall ((v_prenex_26 Int) (v_prenex_23 Int) (v_prenex_22 Int) (v_prenex_25 Int) (v_prenex_24 Int) (v_prenex_21 Int)) (or (< v_prenex_22 0) (< 9223372036854775807 v_prenex_22) (not (= (mod (select (let ((.cse0 (select (let ((.cse2 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7| (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7|) |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.offset_7| v_prenex_26)) |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.base|) (+ |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset| 8))) (.cse1 (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7| (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7|) |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.offset_7| |ULTIMATE.start_aws_hton64_#res|)))) (store .cse1 .cse2 (let ((.cse3 (mod v_prenex_22 18446744073709551616))) (store (select .cse1 .cse2) (+ .cse3 v_prenex_21) (select (select .cse1 v_prenex_23) (+ .cse3 v_prenex_24)))))) |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.base|))) (store .cse0 |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset| (+ (select .cse0 |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset|) v_prenex_25))) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset|)) 18446744073709551616) 0)))) (forall ((ULTIMATE.start_memcpy_impl_~dst.offset Int) (aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 Int) (ULTIMATE.start_memcpy_impl_~src.base Int) (ULTIMATE.start_memcpy_impl_~src.offset Int) (v_DerPreprocessor_1 Int) (ULTIMATE.start_aws_byte_buf_write_~len Int)) (or (<= 18446744073709551616 aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58) (not (= (mod (select (let ((.cse4 (select (let ((.cse6 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7| (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7|) |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.offset_7| v_DerPreprocessor_1)) |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.base|) (+ |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset| 8))) (.cse5 (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7| (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7|) |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.offset_7| |ULTIMATE.start_aws_hton64_#res|)))) (store .cse5 .cse6 (let ((.cse7 (mod aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 18446744073709551616))) (store (select .cse5 .cse6) (+ (- 18446744073709551616) .cse7 ULTIMATE.start_memcpy_impl_~dst.offset) (select (select .cse5 ULTIMATE.start_memcpy_impl_~src.base) (+ (- 18446744073709551616) .cse7 ULTIMATE.start_memcpy_impl_~src.offset)))))) |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.base|))) (store .cse4 |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset| (+ (select .cse4 |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset|) ULTIMATE.start_aws_byte_buf_write_~len))) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset|)) 18446744073709551616) 0)) (<= aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 9223372036854775807)))) (= (mod (select (select (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7| (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.base_7|) |v_ULTIMATE.start_aws_byte_buf_write_be64_~#x.offset_7| |ULTIMATE.start_aws_hton64_#res|)) |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.base|) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset|)) 18446744073709551616) 0))) (= (mod (select (select |c_#memory_int| |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.base|) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be64_harness_~#buf~3.offset|)) 18446744073709551616) 0)) is different from false [2021-11-07 09:07:07,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1721 treesize of output 1649 Killed by 15