./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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_hash_iter_begin_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 0f893dc40cf70b8d30dda6e110329e0bc2218e18bc668acf080889b069fe51ab --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-03 23:02:42,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 23:02:42,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 23:02:42,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 23:02:42,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 23:02:42,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 23:02:42,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 23:02:42,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 23:02:42,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 23:02:42,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 23:02:42,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 23:02:42,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 23:02:42,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 23:02:42,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 23:02:42,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 23:02:42,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 23:02:42,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 23:02:42,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 23:02:42,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 23:02:42,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 23:02:42,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 23:02:42,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 23:02:42,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 23:02:42,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 23:02:42,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 23:02:42,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 23:02:42,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 23:02:42,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 23:02:42,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 23:02:42,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 23:02:42,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 23:02:42,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 23:02:42,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 23:02:42,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 23:02:42,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 23:02:42,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 23:02:42,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 23:02:42,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 23:02:42,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 23:02:42,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 23:02:42,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 23:02:42,689 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 23:02:42,711 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 23:02:42,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 23:02:42,712 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 23:02:42,712 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 23:02:42,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 23:02:42,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 23:02:42,713 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 23:02:42,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 23:02:42,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 23:02:42,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 23:02:42,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 23:02:42,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 23:02:42,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 23:02:42,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 23:02:42,715 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 23:02:42,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 23:02:42,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 23:02:42,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 23:02:42,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 23:02:42,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 23:02:42,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 23:02:42,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 23:02:42,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 23:02:42,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 23:02:42,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 23:02:42,716 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 23:02:42,717 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 23:02:42,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 23:02:42,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 23:02:42,718 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f893dc40cf70b8d30dda6e110329e0bc2218e18bc668acf080889b069fe51ab [2021-11-03 23:02:42,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 23:02:42,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 23:02:42,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 23:02:42,964 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 23:02:42,964 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 23:02:42,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i [2021-11-03 23:02:43,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19be430fd/62a5dfd8e1844297b1ba5a821d060f54/FLAG28f1b4260 [2021-11-03 23:02:43,610 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 23:02:43,610 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i [2021-11-03 23:02:43,645 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19be430fd/62a5dfd8e1844297b1ba5a821d060f54/FLAG28f1b4260 [2021-11-03 23:02:44,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19be430fd/62a5dfd8e1844297b1ba5a821d060f54 [2021-11-03 23:02:44,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 23:02:44,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 23:02:44,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 23:02:44,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 23:02:44,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 23:02:44,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 11:02:44" (1/1) ... [2021-11-03 23:02:44,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f225ad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:02:44, skipping insertion in model container [2021-11-03 23:02:44,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 11:02:44" (1/1) ... [2021-11-03 23:02:44,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 23:02:44,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 23:02:44,385 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_hash_iter_begin_harness.i[4493,4506] [2021-11-03 23:02:44,393 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_hash_iter_begin_harness.i[4553,4566] [2021-11-03 23:02:44,407 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 23:02:44,413 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 23:02:44,969 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:44,972 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:44,973 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:44,973 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:44,974 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:44,981 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:44,984 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:44,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:44,988 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:44,990 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:44,991 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:44,991 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:44,992 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,253 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 23:02:45,254 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 23:02:45,254 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 23:02:45,255 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 23:02:45,255 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 23:02:45,256 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 23:02:45,256 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 23:02:45,256 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 23:02:45,257 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 23:02:45,257 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 23:02:45,376 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 23:02:45,515 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,515 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,524 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,525 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,527 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,527 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 23:02:45,594 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 23:02:45,609 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_hash_iter_begin_harness.i[4493,4506] [2021-11-03 23:02:45,609 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_hash_iter_begin_harness.i[4553,4566] [2021-11-03 23:02:45,612 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 23:02:45,613 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 23:02:45,661 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,661 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,661 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,662 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,662 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,667 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,668 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,669 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,669 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,669 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,688 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 23:02:45,689 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 23:02:45,689 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 23:02:45,689 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 23:02:45,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 23:02:45,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 23:02:45,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 23:02:45,691 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 23:02:45,691 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 23:02:45,691 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 23:02:45,712 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 23:02:45,780 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,781 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,786 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,786 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,788 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,788 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,796 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,797 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,797 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,798 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,798 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,798 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,798 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:02:45,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 23:02:45,996 INFO L208 MainTranslator]: Completed translation [2021-11-03 23:02:45,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:02:45 WrapperNode [2021-11-03 23:02:45,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 23:02:45,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 23:02:45,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 23:02:45,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 23:02:46,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:02:45" (1/1) ... [2021-11-03 23:02:46,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:02:45" (1/1) ... [2021-11-03 23:02:46,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 23:02:46,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 23:02:46,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 23:02:46,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 23:02:46,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:02:45" (1/1) ... [2021-11-03 23:02:46,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:02:45" (1/1) ... [2021-11-03 23:02:46,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:02:45" (1/1) ... [2021-11-03 23:02:46,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:02:45" (1/1) ... [2021-11-03 23:02:46,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:02:45" (1/1) ... [2021-11-03 23:02:46,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:02:45" (1/1) ... [2021-11-03 23:02:46,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:02:45" (1/1) ... [2021-11-03 23:02:46,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 23:02:46,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 23:02:46,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 23:02:46,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 23:02:46,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:02:45" (1/1) ... [2021-11-03 23:02:46,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 23:02:46,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:02:46,316 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) [2021-11-03 23:02:46,334 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 [2021-11-03 23:02:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-03 23:02:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 23:02:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 23:02:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 23:02:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 23:02:46,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 23:02:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 23:02:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 23:02:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 23:02:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 23:02:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 23:02:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 23:02:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 23:02:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 23:02:50,554 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##150: assume !true; [2021-11-03 23:02:50,564 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 23:02:50,564 INFO L299 CfgBuilder]: Removed 157 assume(true) statements. [2021-11-03 23:02:50,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 11:02:50 BoogieIcfgContainer [2021-11-03 23:02:50,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 23:02:50,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 23:02:50,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 23:02:50,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 23:02:50,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 11:02:44" (1/3) ... [2021-11-03 23:02:50,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d846296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 11:02:50, skipping insertion in model container [2021-11-03 23:02:50,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:02:45" (2/3) ... [2021-11-03 23:02:50,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d846296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 11:02:50, skipping insertion in model container [2021-11-03 23:02:50,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 11:02:50" (3/3) ... [2021-11-03 23:02:50,578 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_begin_harness.i [2021-11-03 23:02:50,582 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 23:02:50,583 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 23:02:50,624 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 23:02:50,629 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 [2021-11-03 23:02:50,630 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 23:02:50,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 195 states have (on average 1.4564102564102563) internal successors, (284), 201 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:02:50,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 23:02:50,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:02:50,654 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] [2021-11-03 23:02:50,654 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:02:50,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:02:50,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1999182466, now seen corresponding path program 1 times [2021-11-03 23:02:50,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:02:50,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705702917] [2021-11-03 23:02:50,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:02:50,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:02:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:02:51,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:02:51,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:02:51,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705702917] [2021-11-03 23:02:51,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705702917] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:02:51,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:02:51,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 23:02:51,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292652281] [2021-11-03 23:02:51,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:02:51,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 23:02:51,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:02:51,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 23:02:51,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 23:02:51,185 INFO L87 Difference]: Start difference. First operand has 202 states, 195 states have (on average 1.4564102564102563) internal successors, (284), 201 states have internal predecessors, (284), 0 states have call successors, (0), 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 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:02:53,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:02:54,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:02:54,451 INFO L93 Difference]: Finished difference Result 399 states and 562 transitions. [2021-11-03 23:02:54,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 23:02:54,454 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2021-11-03 23:02:54,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:02:54,460 INFO L225 Difference]: With dead ends: 399 [2021-11-03 23:02:54,460 INFO L226 Difference]: Without dead ends: 195 [2021-11-03 23:02:54,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 23:02:54,464 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2933.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.64ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3195.79ms IncrementalHoareTripleChecker+Time [2021-11-03 23:02:54,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 263 Unknown, 0 Unchecked, 4.64ms Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 1 Unknown, 0 Unchecked, 3195.79ms Time] [2021-11-03 23:02:54,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-03 23:02:54,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-03 23:02:54,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 194 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) [2021-11-03 23:02:54,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 257 transitions. [2021-11-03 23:02:54,550 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 257 transitions. Word has length 62 [2021-11-03 23:02:54,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:02:54,551 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 257 transitions. [2021-11-03 23:02:54,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:02:54,551 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 257 transitions. [2021-11-03 23:02:54,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-03 23:02:54,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:02:54,553 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] [2021-11-03 23:02:54,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 23:02:54,553 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:02:54,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:02:54,554 INFO L85 PathProgramCache]: Analyzing trace with hash 312696489, now seen corresponding path program 1 times [2021-11-03 23:02:54,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:02:54,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581964304] [2021-11-03 23:02:54,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:02:54,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:02:54,697 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 23:02:54,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [431391607] [2021-11-03 23:02:54,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:02:54,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:02:54,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:02:54,700 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) [2021-11-03 23:02:54,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 23:02:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:02:55,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 23:02:55,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:02:55,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:02:55,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 23:02:55,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:02:55,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581964304] [2021-11-03 23:02:55,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 23:02:55,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431391607] [2021-11-03 23:02:55,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431391607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:02:55,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:02:55,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 23:02:55,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550160281] [2021-11-03 23:02:55,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:02:55,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 23:02:55,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:02:55,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 23:02:55,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 23:02:55,721 INFO L87 Difference]: Start difference. First operand 195 states and 257 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2021-11-03 23:02:57,763 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 [] [2021-11-03 23:02:59,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:02:59,794 INFO L93 Difference]: Finished difference Result 317 states and 426 transitions. [2021-11-03 23:02:59,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 23:02:59,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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 [2021-11-03 23:02:59,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:02:59,796 INFO L225 Difference]: With dead ends: 317 [2021-11-03 23:02:59,796 INFO L226 Difference]: Without dead ends: 196 [2021-11-03 23:02:59,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.98ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 23:02:59,797 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3644.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.14ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4020.03ms IncrementalHoareTripleChecker+Time [2021-11-03 23:02:59,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 512 Unknown, 0 Unchecked, 9.14ms Time], IncrementalHoareTripleChecker [0 Valid, 511 Invalid, 1 Unknown, 0 Unchecked, 4020.03ms Time] [2021-11-03 23:02:59,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-03 23:02:59,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2021-11-03 23:02:59,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 190 states have (on average 1.3578947368421053) internal successors, (258), 195 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:02:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 258 transitions. [2021-11-03 23:02:59,810 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 258 transitions. Word has length 65 [2021-11-03 23:02:59,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:02:59,810 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 258 transitions. [2021-11-03 23:02:59,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2021-11-03 23:02:59,811 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 258 transitions. [2021-11-03 23:02:59,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-03 23:02:59,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:02:59,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:02:59,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-03 23:03:00,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:03:00,032 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:03:00,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:03:00,032 INFO L85 PathProgramCache]: Analyzing trace with hash 794092388, now seen corresponding path program 1 times [2021-11-03 23:03:00,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:03:00,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202490511] [2021-11-03 23:03:00,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:03:00,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:03:00,110 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 23:03:00,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453377251] [2021-11-03 23:03:00,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:03:00,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:03:00,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:03:00,116 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 23:03:00,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 23:03:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:03:00,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 2617 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 23:03:00,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:03:01,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:03:01,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 23:03:01,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:03:01,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:03:01,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202490511] [2021-11-03 23:03:01,213 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 23:03:01,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453377251] [2021-11-03 23:03:01,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453377251] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 23:03:01,213 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 23:03:01,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-03 23:03:01,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391604506] [2021-11-03 23:03:01,214 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-03 23:03:01,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 23:03:01,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:03:01,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 23:03:01,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 23:03:01,215 INFO L87 Difference]: Start difference. First operand 196 states and 258 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 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) [2021-11-03 23:03:03,255 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 [] [2021-11-03 23:03:05,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:03:05,972 INFO L93 Difference]: Finished difference Result 320 states and 431 transitions. [2021-11-03 23:03:05,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 23:03:05,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 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 66 [2021-11-03 23:03:05,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:03:05,974 INFO L225 Difference]: With dead ends: 320 [2021-11-03 23:03:05,974 INFO L226 Difference]: Without dead ends: 199 [2021-11-03 23:03:05,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 82.75ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 23:03:05,975 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4303.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.87ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4696.27ms IncrementalHoareTripleChecker+Time [2021-11-03 23:03:05,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 772 Unknown, 0 Unchecked, 9.87ms Time], IncrementalHoareTripleChecker [3 Valid, 768 Invalid, 1 Unknown, 0 Unchecked, 4696.27ms Time] [2021-11-03 23:03:05,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-03 23:03:05,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-11-03 23:03:05,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 198 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) [2021-11-03 23:03:05,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 261 transitions. [2021-11-03 23:03:05,984 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 261 transitions. Word has length 66 [2021-11-03 23:03:05,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:03:05,984 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 261 transitions. [2021-11-03 23:03:05,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 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) [2021-11-03 23:03:05,984 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 261 transitions. [2021-11-03 23:03:05,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-03 23:03:05,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:03:05,986 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:03:06,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 23:03:06,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-03 23:03:06,199 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:03:06,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:03:06,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1966880105, now seen corresponding path program 2 times [2021-11-03 23:03:06,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:03:06,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107443860] [2021-11-03 23:03:06,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:03:06,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:03:06,293 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 23:03:06,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1049102782] [2021-11-03 23:03:06,294 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 23:03:06,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:03:06,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:03:06,299 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 23:03:06,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-03 23:03:06,959 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-03 23:03:06,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 23:03:06,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 23:03:06,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:03:07,615 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 23:03:07,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 23:03:07,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:03:07,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107443860] [2021-11-03 23:03:07,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 23:03:07,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049102782] [2021-11-03 23:03:07,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049102782] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:03:07,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:03:07,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 23:03:07,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082011871] [2021-11-03 23:03:07,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:03:07,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 23:03:07,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:03:07,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 23:03:07,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 23:03:07,617 INFO L87 Difference]: Start difference. First operand 199 states and 261 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:09,657 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 [] [2021-11-03 23:03:12,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:03:12,428 INFO L93 Difference]: Finished difference Result 282 states and 373 transitions. [2021-11-03 23:03:12,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 23:03:12,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-03 23:03:12,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:03:12,430 INFO L225 Difference]: With dead ends: 282 [2021-11-03 23:03:12,430 INFO L226 Difference]: Without dead ends: 200 [2021-11-03 23:03:12,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 267.70ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-03 23:03:12,432 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 538 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4184.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.77ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4556.83ms IncrementalHoareTripleChecker+Time [2021-11-03 23:03:12,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [538 Valid, 0 Invalid, 674 Unknown, 0 Unchecked, 14.77ms Time], IncrementalHoareTripleChecker [5 Valid, 668 Invalid, 1 Unknown, 0 Unchecked, 4556.83ms Time] [2021-11-03 23:03:12,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-11-03 23:03:12,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 199. [2021-11-03 23:03:12,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 193 states have (on average 1.3419689119170986) internal successors, (259), 198 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:12,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 259 transitions. [2021-11-03 23:03:12,438 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 259 transitions. Word has length 69 [2021-11-03 23:03:12,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:03:12,439 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 259 transitions. [2021-11-03 23:03:12,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:12,439 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 259 transitions. [2021-11-03 23:03:12,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 23:03:12,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:03:12,440 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:03:12,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-03 23:03:12,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:03:12,641 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:03:12,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:03:12,641 INFO L85 PathProgramCache]: Analyzing trace with hash 843500241, now seen corresponding path program 1 times [2021-11-03 23:03:12,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:03:12,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623027088] [2021-11-03 23:03:12,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:03:12,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:03:12,740 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 23:03:12,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [16422356] [2021-11-03 23:03:12,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:03:12,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:03:12,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:03:12,742 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 23:03:12,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-03 23:03:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:03:13,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 2643 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 23:03:13,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:03:13,800 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:03:13,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 23:03:14,163 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:03:14,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:03:14,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623027088] [2021-11-03 23:03:14,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 23:03:14,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16422356] [2021-11-03 23:03:14,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16422356] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 23:03:14,163 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 23:03:14,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-11-03 23:03:14,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202039025] [2021-11-03 23:03:14,164 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-03 23:03:14,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 23:03:14,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:03:14,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 23:03:14,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 23:03:14,164 INFO L87 Difference]: Start difference. First operand 199 states and 259 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) [2021-11-03 23:03:16,204 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 [] [2021-11-03 23:03:21,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:03:21,299 INFO L93 Difference]: Finished difference Result 326 states and 436 transitions. [2021-11-03 23:03:21,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 23:03:21,300 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 70 [2021-11-03 23:03:21,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:03:21,301 INFO L225 Difference]: With dead ends: 326 [2021-11-03 23:03:21,301 INFO L226 Difference]: Without dead ends: 205 [2021-11-03 23:03:21,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 361.59ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 23:03:21,302 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6435.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.49ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7053.51ms IncrementalHoareTripleChecker+Time [2021-11-03 23:03:21,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1532 Unknown, 0 Unchecked, 14.49ms Time], IncrementalHoareTripleChecker [7 Valid, 1524 Invalid, 1 Unknown, 0 Unchecked, 7053.51ms Time] [2021-11-03 23:03:21,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-11-03 23:03:21,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2021-11-03 23:03:21,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 204 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:21,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 265 transitions. [2021-11-03 23:03:21,308 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 265 transitions. Word has length 70 [2021-11-03 23:03:21,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:03:21,308 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 265 transitions. [2021-11-03 23:03:21,308 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) [2021-11-03 23:03:21,308 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 265 transitions. [2021-11-03 23:03:21,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-03 23:03:21,309 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:03:21,309 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:03:21,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-03 23:03:21,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:03:21,533 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:03:21,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:03:21,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1887035569, now seen corresponding path program 2 times [2021-11-03 23:03:21,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:03:21,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897000595] [2021-11-03 23:03:21,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:03:21,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:03:21,589 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 23:03:21,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [122330930] [2021-11-03 23:03:21,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 23:03:21,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:03:21,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:03:21,590 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 23:03:21,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-03 23:03:22,360 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-03 23:03:22,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 23:03:22,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 2615 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 23:03:22,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:03:22,727 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-03 23:03:22,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 23:03:22,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:03:22,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897000595] [2021-11-03 23:03:22,728 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 23:03:22,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122330930] [2021-11-03 23:03:22,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122330930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:03:22,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:03:22,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 23:03:22,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224595628] [2021-11-03 23:03:22,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:03:22,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 23:03:22,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:03:22,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 23:03:22,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 23:03:22,729 INFO L87 Difference]: Start difference. First operand 205 states and 265 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:24,769 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 [] [2021-11-03 23:03:29,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:03:29,268 INFO L93 Difference]: Finished difference Result 577 states and 751 transitions. [2021-11-03 23:03:29,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 23:03:29,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 [2021-11-03 23:03:29,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:03:29,270 INFO L225 Difference]: With dead ends: 577 [2021-11-03 23:03:29,270 INFO L226 Difference]: Without dead ends: 394 [2021-11-03 23:03:29,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 101.72ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 23:03:29,271 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 462 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5914.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.36ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6402.41ms IncrementalHoareTripleChecker+Time [2021-11-03 23:03:29,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 0 Invalid, 1447 Unknown, 0 Unchecked, 17.36ms Time], IncrementalHoareTripleChecker [8 Valid, 1438 Invalid, 1 Unknown, 0 Unchecked, 6402.41ms Time] [2021-11-03 23:03:29,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-11-03 23:03:29,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 211. [2021-11-03 23:03:29,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 205 states have (on average 1.3219512195121952) internal successors, (271), 210 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:29,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 271 transitions. [2021-11-03 23:03:29,278 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 271 transitions. Word has length 76 [2021-11-03 23:03:29,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:03:29,278 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 271 transitions. [2021-11-03 23:03:29,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:29,278 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 271 transitions. [2021-11-03 23:03:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-03 23:03:29,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:03:29,279 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:03:29,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-03 23:03:29,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:03:29,480 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:03:29,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:03:29,481 INFO L85 PathProgramCache]: Analyzing trace with hash -958759759, now seen corresponding path program 1 times [2021-11-03 23:03:29,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:03:29,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504993313] [2021-11-03 23:03:29,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:03:29,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:03:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:03:29,895 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-03 23:03:29,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:03:29,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504993313] [2021-11-03 23:03:29,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504993313] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:03:29,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:03:29,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-03 23:03:29,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146906104] [2021-11-03 23:03:29,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:03:29,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 23:03:29,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:03:29,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 23:03:29,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-03 23:03:29,896 INFO L87 Difference]: Start difference. First operand 211 states and 271 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:31,936 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 [] [2021-11-03 23:03:35,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:03:35,849 INFO L93 Difference]: Finished difference Result 422 states and 545 transitions. [2021-11-03 23:03:35,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 23:03:35,850 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 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 80 [2021-11-03 23:03:35,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:03:35,851 INFO L225 Difference]: With dead ends: 422 [2021-11-03 23:03:35,851 INFO L226 Difference]: Without dead ends: 249 [2021-11-03 23:03:35,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 361.93ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-03 23:03:35,852 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 689 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5196.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.16ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5650.35ms IncrementalHoareTripleChecker+Time [2021-11-03 23:03:35,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [689 Valid, 0 Invalid, 1297 Unknown, 0 Unchecked, 17.16ms Time], IncrementalHoareTripleChecker [21 Valid, 1275 Invalid, 1 Unknown, 0 Unchecked, 5650.35ms Time] [2021-11-03 23:03:35,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-03 23:03:35,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 229. [2021-11-03 23:03:35,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 223 states have (on average 1.3139013452914798) internal successors, (293), 228 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:35,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 293 transitions. [2021-11-03 23:03:35,859 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 293 transitions. Word has length 80 [2021-11-03 23:03:35,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:03:35,860 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 293 transitions. [2021-11-03 23:03:35,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:35,860 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 293 transitions. [2021-11-03 23:03:35,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-03 23:03:35,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:03:35,861 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:03:35,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-03 23:03:35,861 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:03:35,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:03:35,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1554389971, now seen corresponding path program 1 times [2021-11-03 23:03:35,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:03:35,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159471783] [2021-11-03 23:03:35,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:03:35,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:03:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:03:36,152 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-03 23:03:36,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:03:36,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159471783] [2021-11-03 23:03:36,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159471783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:03:36,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:03:36,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 23:03:36,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406084327] [2021-11-03 23:03:36,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:03:36,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 23:03:36,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:03:36,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 23:03:36,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 23:03:36,154 INFO L87 Difference]: Start difference. First operand 229 states and 293 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:38,294 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 [] [2021-11-03 23:03:40,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:03:40,288 INFO L93 Difference]: Finished difference Result 421 states and 543 transitions. [2021-11-03 23:03:40,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 23:03:40,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 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 80 [2021-11-03 23:03:40,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:03:40,290 INFO L225 Difference]: With dead ends: 421 [2021-11-03 23:03:40,290 INFO L226 Difference]: Without dead ends: 227 [2021-11-03 23:03:40,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.44ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 23:03:40,291 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 227 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3650.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.30ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4091.74ms IncrementalHoareTripleChecker+Time [2021-11-03 23:03:40,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 0 Invalid, 505 Unknown, 0 Unchecked, 3.30ms Time], IncrementalHoareTripleChecker [7 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 4091.74ms Time] [2021-11-03 23:03:40,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-03 23:03:40,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-03 23:03:40,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 221 states have (on average 1.2941176470588236) internal successors, (286), 226 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:40,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 286 transitions. [2021-11-03 23:03:40,300 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 286 transitions. Word has length 80 [2021-11-03 23:03:40,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:03:40,301 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 286 transitions. [2021-11-03 23:03:40,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:40,301 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 286 transitions. [2021-11-03 23:03:40,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-03 23:03:40,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:03:40,302 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:03:40,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-03 23:03:40,302 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:03:40,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:03:40,303 INFO L85 PathProgramCache]: Analyzing trace with hash 283686939, now seen corresponding path program 1 times [2021-11-03 23:03:40,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:03:40,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505427703] [2021-11-03 23:03:40,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:03:40,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:03:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:03:40,613 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-03 23:03:40,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:03:40,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505427703] [2021-11-03 23:03:40,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505427703] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:03:40,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:03:40,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 23:03:40,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032225054] [2021-11-03 23:03:40,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:03:40,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 23:03:40,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:03:40,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 23:03:40,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 23:03:40,615 INFO L87 Difference]: Start difference. First operand 227 states and 286 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:42,665 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 [] [2021-11-03 23:03:45,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:03:45,437 INFO L93 Difference]: Finished difference Result 423 states and 536 transitions. [2021-11-03 23:03:45,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 23:03:45,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 [2021-11-03 23:03:45,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:03:45,438 INFO L225 Difference]: With dead ends: 423 [2021-11-03 23:03:45,439 INFO L226 Difference]: Without dead ends: 233 [2021-11-03 23:03:45,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 337.85ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 23:03:45,439 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 258 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4244.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.32ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4539.84ms IncrementalHoareTripleChecker+Time [2021-11-03 23:03:45,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 0 Invalid, 724 Unknown, 0 Unchecked, 6.32ms Time], IncrementalHoareTripleChecker [46 Valid, 677 Invalid, 1 Unknown, 0 Unchecked, 4539.84ms Time] [2021-11-03 23:03:45,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-03 23:03:45,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 227. [2021-11-03 23:03:45,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 221 states have (on average 1.262443438914027) internal successors, (279), 226 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:45,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 279 transitions. [2021-11-03 23:03:45,448 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 279 transitions. Word has length 84 [2021-11-03 23:03:45,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:03:45,448 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 279 transitions. [2021-11-03 23:03:45,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:45,449 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 279 transitions. [2021-11-03 23:03:45,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-03 23:03:45,449 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:03:45,450 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:03:45,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-03 23:03:45,450 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:03:45,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:03:45,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1093320252, now seen corresponding path program 1 times [2021-11-03 23:03:45,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:03:45,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578014651] [2021-11-03 23:03:45,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:03:45,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:03:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:03:46,438 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:03:46,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:03:46,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578014651] [2021-11-03 23:03:46,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578014651] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 23:03:46,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609200362] [2021-11-03 23:03:46,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:03:46,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:03:46,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:03:46,440 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 23:03:46,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-03 23:03:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:03:47,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 2768 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 23:03:47,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:03:48,163 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:03:48,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 23:03:49,606 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:03:49,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609200362] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 23:03:49,606 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 23:03:49,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 35 [2021-11-03 23:03:49,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855252699] [2021-11-03 23:03:49,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-03 23:03:49,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-03 23:03:49,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:03:49,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-03 23:03:49,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=540, Invalid=650, Unknown=0, NotChecked=0, Total=1190 [2021-11-03 23:03:49,608 INFO L87 Difference]: Start difference. First operand 227 states and 279 transitions. Second operand has 35 states, 35 states have (on average 3.142857142857143) internal successors, (110), 35 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:51,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:03:56,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:03:56,520 INFO L93 Difference]: Finished difference Result 360 states and 462 transitions. [2021-11-03 23:03:56,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-03 23:03:56,521 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.142857142857143) internal successors, (110), 35 states have internal predecessors, (110), 0 states have call successors, (0), 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 86 [2021-11-03 23:03:56,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:03:56,522 INFO L225 Difference]: With dead ends: 360 [2021-11-03 23:03:56,523 INFO L226 Difference]: Without dead ends: 239 [2021-11-03 23:03:56,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2376.21ms TimeCoverageRelationStatistics Valid=540, Invalid=650, Unknown=0, NotChecked=0, Total=1190 [2021-11-03 23:03:56,524 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6102.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.38ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6816.91ms IncrementalHoareTripleChecker+Time [2021-11-03 23:03:56,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1255 Unknown, 0 Unchecked, 7.38ms Time], IncrementalHoareTripleChecker [17 Valid, 1237 Invalid, 1 Unknown, 0 Unchecked, 6816.91ms Time] [2021-11-03 23:03:56,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-03 23:03:56,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-11-03 23:03:56,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 233 states have (on average 1.2489270386266094) internal successors, (291), 238 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:56,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 291 transitions. [2021-11-03 23:03:56,533 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 291 transitions. Word has length 86 [2021-11-03 23:03:56,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:03:56,534 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 291 transitions. [2021-11-03 23:03:56,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.142857142857143) internal successors, (110), 35 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:03:56,534 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 291 transitions. [2021-11-03 23:03:56,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-03 23:03:56,534 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:03:56,535 INFO L514 BasicCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:03:56,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-03 23:03:56,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:03:56,754 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:03:56,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:03:56,754 INFO L85 PathProgramCache]: Analyzing trace with hash 185612668, now seen corresponding path program 2 times [2021-11-03 23:03:56,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:03:56,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661780569] [2021-11-03 23:03:56,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:03:56,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:03:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:03:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:03:58,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:03:58,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661780569] [2021-11-03 23:03:58,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661780569] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 23:03:58,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291666447] [2021-11-03 23:03:58,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 23:03:58,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:03:58,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:03:58,704 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 23:03:58,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-03 23:03:59,374 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-03 23:03:59,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 23:03:59,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 2698 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-03 23:03:59,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:04:00,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2021-11-03 23:04:00,731 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:04:00,731 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 36 [2021-11-03 23:04:01,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-11-03 23:04:01,404 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 23:04:01,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 14 [2021-11-03 23:04:01,553 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-11-03 23:04:01,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 23:04:01,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291666447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:04:01,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-03 23:04:01,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [25] total 33 [2021-11-03 23:04:01,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807712569] [2021-11-03 23:04:01,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:04:01,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 23:04:01,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:04:01,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 23:04:01,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=739, Unknown=0, NotChecked=0, Total=1056 [2021-11-03 23:04:01,555 INFO L87 Difference]: Start difference. First operand 239 states and 291 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 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) [2021-11-03 23:04:04,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:04:10,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:04:10,973 INFO L93 Difference]: Finished difference Result 454 states and 575 transitions. [2021-11-03 23:04:10,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 23:04:10,975 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 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 98 [2021-11-03 23:04:10,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:04:10,977 INFO L225 Difference]: With dead ends: 454 [2021-11-03 23:04:10,977 INFO L226 Difference]: Without dead ends: 355 [2021-11-03 23:04:10,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 3673.72ms TimeCoverageRelationStatistics Valid=420, Invalid=1386, Unknown=0, NotChecked=0, Total=1806 [2021-11-03 23:04:10,978 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1278 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7192.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.24ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7894.80ms IncrementalHoareTripleChecker+Time [2021-11-03 23:04:10,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1278 Valid, 0 Invalid, 1523 Unknown, 0 Unchecked, 17.24ms Time], IncrementalHoareTripleChecker [43 Valid, 1479 Invalid, 1 Unknown, 0 Unchecked, 7894.80ms Time] [2021-11-03 23:04:10,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-11-03 23:04:10,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 255. [2021-11-03 23:04:10,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 249 states have (on average 1.2449799196787148) internal successors, (310), 254 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:04:10,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 310 transitions. [2021-11-03 23:04:10,991 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 310 transitions. Word has length 98 [2021-11-03 23:04:10,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:04:10,991 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 310 transitions. [2021-11-03 23:04:10,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 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) [2021-11-03 23:04:10,991 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 310 transitions. [2021-11-03 23:04:10,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-03 23:04:10,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:04:10,992 INFO L514 BasicCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:04:11,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-03 23:04:11,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:04:11,206 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:04:11,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:04:11,207 INFO L85 PathProgramCache]: Analyzing trace with hash -825504582, now seen corresponding path program 1 times [2021-11-03 23:04:11,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:04:11,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310953645] [2021-11-03 23:04:11,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:04:11,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:04:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:04:13,191 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:04:13,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:04:13,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310953645] [2021-11-03 23:04:13,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310953645] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 23:04:13,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410529375] [2021-11-03 23:04:13,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:04:13,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:04:13,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:04:13,195 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 23:04:13,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-03 23:04:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:04:13,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 2847 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 23:04:13,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:04:17,681 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:04:17,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 23:04:23,750 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:04:23,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410529375] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 23:04:23,751 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 23:04:23,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 71 [2021-11-03 23:04:23,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245518669] [2021-11-03 23:04:23,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-03 23:04:23,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2021-11-03 23:04:23,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:04:23,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-11-03 23:04:23,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2232, Invalid=2738, Unknown=0, NotChecked=0, Total=4970 [2021-11-03 23:04:23,754 INFO L87 Difference]: Start difference. First operand 255 states and 310 transitions. Second operand has 71 states, 71 states have (on average 2.056338028169014) internal successors, (146), 71 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:04:26,322 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:04:31,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:04:31,325 INFO L93 Difference]: Finished difference Result 416 states and 536 transitions. [2021-11-03 23:04:31,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-03 23:04:31,326 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 2.056338028169014) internal successors, (146), 71 states have internal predecessors, (146), 0 states have call successors, (0), 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 98 [2021-11-03 23:04:31,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:04:31,327 INFO L225 Difference]: With dead ends: 416 [2021-11-03 23:04:31,327 INFO L226 Difference]: Without dead ends: 279 [2021-11-03 23:04:31,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 10222.30ms TimeCoverageRelationStatistics Valid=2232, Invalid=2738, Unknown=0, NotChecked=0, Total=4970 [2021-11-03 23:04:31,329 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6507.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.27ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7468.05ms IncrementalHoareTripleChecker+Time [2021-11-03 23:04:31,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1294 Unknown, 0 Unchecked, 8.27ms Time], IncrementalHoareTripleChecker [28 Valid, 1265 Invalid, 1 Unknown, 0 Unchecked, 7468.05ms Time] [2021-11-03 23:04:31,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-03 23:04:31,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2021-11-03 23:04:31,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 273 states have (on average 1.2234432234432235) internal successors, (334), 278 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:04:31,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 334 transitions. [2021-11-03 23:04:31,343 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 334 transitions. Word has length 98 [2021-11-03 23:04:31,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:04:31,344 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 334 transitions. [2021-11-03 23:04:31,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 2.056338028169014) internal successors, (146), 71 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:04:31,344 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 334 transitions. [2021-11-03 23:04:31,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-03 23:04:31,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:04:31,345 INFO L514 BasicCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:04:31,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-03 23:04:31,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-03 23:04:31,567 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:04:31,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:04:31,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1779049274, now seen corresponding path program 2 times [2021-11-03 23:04:31,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:04:31,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22784851] [2021-11-03 23:04:31,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:04:31,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:04:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:04:37,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:04:37,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:04:37,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22784851] [2021-11-03 23:04:37,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22784851] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 23:04:37,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911438250] [2021-11-03 23:04:37,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 23:04:37,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:04:37,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:04:37,293 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 23:04:37,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-03 23:04:37,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-03 23:04:37,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 23:04:37,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 2693 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-03 23:04:37,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:04:39,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 11 [2021-11-03 23:04:40,031 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 36 treesize of output 28 [2021-11-03 23:04:40,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2021-11-03 23:04:40,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 23:04:40,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911438250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:04:40,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-03 23:04:40,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [49] total 55 [2021-11-03 23:04:40,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271115905] [2021-11-03 23:04:40,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:04:40,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 23:04:40,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:04:40,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 23:04:40,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1189, Invalid=1781, Unknown=0, NotChecked=0, Total=2970 [2021-11-03 23:04:40,292 INFO L87 Difference]: Start difference. First operand 279 states and 334 transitions. Second operand has 8 states, 8 states have (on average 9.625) 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) [2021-11-03 23:04:42,658 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:04:46,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:04:46,731 INFO L93 Difference]: Finished difference Result 378 states and 465 transitions. [2021-11-03 23:04:46,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 23:04:46,731 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) 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 122 [2021-11-03 23:04:46,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:04:46,732 INFO L225 Difference]: With dead ends: 378 [2021-11-03 23:04:46,732 INFO L226 Difference]: Without dead ends: 263 [2021-11-03 23:04:46,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 7213.86ms TimeCoverageRelationStatistics Valid=1269, Invalid=2763, Unknown=0, NotChecked=0, Total=4032 [2021-11-03 23:04:46,734 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 818 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4405.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.94ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4888.02ms IncrementalHoareTripleChecker+Time [2021-11-03 23:04:46,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [818 Valid, 0 Invalid, 732 Unknown, 0 Unchecked, 7.94ms Time], IncrementalHoareTripleChecker [29 Valid, 702 Invalid, 1 Unknown, 0 Unchecked, 4888.02ms Time] [2021-11-03 23:04:46,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2021-11-03 23:04:46,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2021-11-03 23:04:46,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 257 states have (on average 1.2140077821011672) internal successors, (312), 262 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:04:46,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 312 transitions. [2021-11-03 23:04:46,746 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 312 transitions. Word has length 122 [2021-11-03 23:04:46,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:04:46,746 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 312 transitions. [2021-11-03 23:04:46,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) 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) [2021-11-03 23:04:46,746 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 312 transitions. [2021-11-03 23:04:46,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-03 23:04:46,747 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:04:46,747 INFO L514 BasicCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:04:46,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-03 23:04:46,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-03 23:04:46,962 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:04:46,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:04:46,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1930121142, now seen corresponding path program 1 times [2021-11-03 23:04:46,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:04:46,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866230942] [2021-11-03 23:04:46,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:04:46,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:04:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:04:52,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:04:52,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:04:52,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866230942] [2021-11-03 23:04:52,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866230942] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 23:04:52,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307122669] [2021-11-03 23:04:52,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:04:52,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:04:52,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:04:52,373 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 23:04:52,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-03 23:04:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:04:53,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 3029 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-03 23:04:53,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:05:04,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:05:04,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 23:05:32,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:05:32,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307122669] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 23:05:32,908 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 23:05:32,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 143 [2021-11-03 23:05:32,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690555944] [2021-11-03 23:05:32,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-03 23:05:32,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2021-11-03 23:05:32,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:05:32,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2021-11-03 23:05:32,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8202, Invalid=12104, Unknown=0, NotChecked=0, Total=20306 [2021-11-03 23:05:32,917 INFO L87 Difference]: Start difference. First operand 263 states and 312 transitions. Second operand has 143 states, 143 states have (on average 1.5454545454545454) internal successors, (221), 143 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:05:35,498 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:05:42,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:05:42,460 INFO L93 Difference]: Finished difference Result 402 states and 504 transitions. [2021-11-03 23:05:42,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-03 23:05:42,464 INFO L78 Accepts]: Start accepts. Automaton has has 143 states, 143 states have (on average 1.5454545454545454) internal successors, (221), 143 states have internal predecessors, (221), 0 states have call successors, (0), 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 125 [2021-11-03 23:05:42,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:05:42,465 INFO L225 Difference]: With dead ends: 402 [2021-11-03 23:05:42,465 INFO L226 Difference]: Without dead ends: 281 [2021-11-03 23:05:42,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2804 ImplicationChecksByTransitivity, 42629.96ms TimeCoverageRelationStatistics Valid=8202, Invalid=12104, Unknown=0, NotChecked=0, Total=20306 [2021-11-03 23:05:42,471 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 1526 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7823.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.80ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9378.36ms IncrementalHoareTripleChecker+Time [2021-11-03 23:05:42,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1549 Unknown, 0 Unchecked, 9.80ms Time], IncrementalHoareTripleChecker [22 Valid, 1526 Invalid, 1 Unknown, 0 Unchecked, 9378.36ms Time] [2021-11-03 23:05:42,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-11-03 23:05:42,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2021-11-03 23:05:42,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 275 states have (on average 1.2) internal successors, (330), 280 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:05:42,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 330 transitions. [2021-11-03 23:05:42,484 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 330 transitions. Word has length 125 [2021-11-03 23:05:42,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:05:42,485 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 330 transitions. [2021-11-03 23:05:42,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 143 states have (on average 1.5454545454545454) internal successors, (221), 143 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:05:42,485 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 330 transitions. [2021-11-03 23:05:42,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-03 23:05:42,486 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:05:42,486 INFO L514 BasicCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:05:42,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-03 23:05:42,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-03 23:05:42,708 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:05:42,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:05:42,708 INFO L85 PathProgramCache]: Analyzing trace with hash 521531094, now seen corresponding path program 2 times [2021-11-03 23:05:42,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:05:42,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735839094] [2021-11-03 23:05:42,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:05:42,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:05:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:05:43,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2080 trivial. 0 not checked. [2021-11-03 23:05:43,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:05:43,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735839094] [2021-11-03 23:05:43,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735839094] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:05:43,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:05:43,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-03 23:05:43,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515453802] [2021-11-03 23:05:43,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:05:43,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 23:05:43,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:05:43,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 23:05:43,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-03 23:05:43,545 INFO L87 Difference]: Start difference. First operand 281 states and 330 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:05:46,353 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:05:50,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:05:50,230 INFO L93 Difference]: Finished difference Result 338 states and 401 transitions. [2021-11-03 23:05:50,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 23:05:50,230 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 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 143 [2021-11-03 23:05:50,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:05:50,231 INFO L225 Difference]: With dead ends: 338 [2021-11-03 23:05:50,231 INFO L226 Difference]: Without dead ends: 282 [2021-11-03 23:05:50,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 635.72ms TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-11-03 23:05:50,232 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1038 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5608.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.70ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6279.50ms IncrementalHoareTripleChecker+Time [2021-11-03 23:05:50,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1038 Valid, 0 Invalid, 897 Unknown, 0 Unchecked, 10.70ms Time], IncrementalHoareTripleChecker [39 Valid, 857 Invalid, 1 Unknown, 0 Unchecked, 6279.50ms Time] [2021-11-03 23:05:50,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-11-03 23:05:50,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 281. [2021-11-03 23:05:50,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 275 states have (on average 1.1963636363636363) internal successors, (329), 280 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:05:50,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 329 transitions. [2021-11-03 23:05:50,243 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 329 transitions. Word has length 143 [2021-11-03 23:05:50,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:05:50,244 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 329 transitions. [2021-11-03 23:05:50,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:05:50,244 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 329 transitions. [2021-11-03 23:05:50,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-03 23:05:50,244 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:05:50,244 INFO L514 BasicCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:05:50,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-03 23:05:50,245 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:05:50,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:05:50,245 INFO L85 PathProgramCache]: Analyzing trace with hash -2075479535, now seen corresponding path program 1 times [2021-11-03 23:05:50,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:05:50,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607765710] [2021-11-03 23:05:50,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:05:50,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:05:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:05:57,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 1953 trivial. 0 not checked. [2021-11-03 23:05:57,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:05:57,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607765710] [2021-11-03 23:05:57,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607765710] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 23:05:57,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899888019] [2021-11-03 23:05:57,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:05:57,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:05:57,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:05:57,183 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 23:05:57,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-03 23:05:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:05:57,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 3170 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-03 23:05:57,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:05:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2080 trivial. 0 not checked. [2021-11-03 23:05:58,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 23:05:58,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899888019] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:05:58,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-03 23:05:58,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [24] total 27 [2021-11-03 23:05:58,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137335405] [2021-11-03 23:05:58,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:05:58,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 23:05:58,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:05:58,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 23:05:58,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=640, Unknown=0, NotChecked=0, Total=702 [2021-11-03 23:05:58,735 INFO L87 Difference]: Start difference. First operand 281 states and 329 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:06:00,778 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 [] [2021-11-03 23:06:04,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:06:04,155 INFO L93 Difference]: Finished difference Result 551 states and 659 transitions. [2021-11-03 23:06:04,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 23:06:04,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 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 146 [2021-11-03 23:06:04,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:06:04,157 INFO L225 Difference]: With dead ends: 551 [2021-11-03 23:06:04,157 INFO L226 Difference]: Without dead ends: 357 [2021-11-03 23:06:04,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2877.48ms TimeCoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-11-03 23:06:04,158 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 96 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4738.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.79ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5286.40ms IncrementalHoareTripleChecker+Time [2021-11-03 23:06:04,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 0 Invalid, 973 Unknown, 0 Unchecked, 5.79ms Time], IncrementalHoareTripleChecker [12 Valid, 960 Invalid, 1 Unknown, 0 Unchecked, 5286.40ms Time] [2021-11-03 23:06:04,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-11-03 23:06:04,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 265. [2021-11-03 23:06:04,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 259 states have (on average 1.1891891891891893) internal successors, (308), 264 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:06:04,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 308 transitions. [2021-11-03 23:06:04,171 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 308 transitions. Word has length 146 [2021-11-03 23:06:04,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:06:04,171 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 308 transitions. [2021-11-03 23:06:04,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:06:04,171 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 308 transitions. [2021-11-03 23:06:04,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-03 23:06:04,172 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:06:04,172 INFO L514 BasicCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:06:04,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-03 23:06:04,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-03 23:06:04,388 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:06:04,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:06:04,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1423809254, now seen corresponding path program 1 times [2021-11-03 23:06:04,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:06:04,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650177306] [2021-11-03 23:06:04,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:06:04,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:06:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:06:09,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 1953 trivial. 0 not checked. [2021-11-03 23:06:09,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:06:09,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650177306] [2021-11-03 23:06:09,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650177306] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 23:06:09,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628208298] [2021-11-03 23:06:09,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:06:09,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:06:09,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:06:09,496 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 23:06:09,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-03 23:06:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:06:10,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 3243 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 23:06:10,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:06:11,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2080 trivial. 0 not checked. [2021-11-03 23:06:11,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 23:06:11,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628208298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:06:11,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-03 23:06:11,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [20] total 22 [2021-11-03 23:06:11,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375454884] [2021-11-03 23:06:11,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:06:11,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 23:06:11,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:06:11,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 23:06:11,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=415, Unknown=0, NotChecked=0, Total=462 [2021-11-03 23:06:11,091 INFO L87 Difference]: Start difference. First operand 265 states and 308 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:06:13,581 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:06:16,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:06:16,188 INFO L93 Difference]: Finished difference Result 507 states and 589 transitions. [2021-11-03 23:06:16,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 23:06:16,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 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 149 [2021-11-03 23:06:16,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:06:16,189 INFO L225 Difference]: With dead ends: 507 [2021-11-03 23:06:16,189 INFO L226 Difference]: Without dead ends: 265 [2021-11-03 23:06:16,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1751.85ms TimeCoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2021-11-03 23:06:16,190 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4432.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.21ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4999.83ms IncrementalHoareTripleChecker+Time [2021-11-03 23:06:16,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 713 Unknown, 0 Unchecked, 3.21ms Time], IncrementalHoareTripleChecker [5 Valid, 707 Invalid, 1 Unknown, 0 Unchecked, 4999.83ms Time] [2021-11-03 23:06:16,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-11-03 23:06:16,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 259. [2021-11-03 23:06:16,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 253 states have (on average 1.1778656126482214) internal successors, (298), 258 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:06:16,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 298 transitions. [2021-11-03 23:06:16,215 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 298 transitions. Word has length 149 [2021-11-03 23:06:16,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:06:16,215 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 298 transitions. [2021-11-03 23:06:16,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:06:16,216 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 298 transitions. [2021-11-03 23:06:16,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-03 23:06:16,216 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:06:16,216 INFO L514 BasicCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:06:16,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-03 23:06:16,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-03 23:06:16,432 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:06:16,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:06:16,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1568692014, now seen corresponding path program 1 times [2021-11-03 23:06:16,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:06:16,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437122914] [2021-11-03 23:06:16,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:06:16,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:06:16,520 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 23:06:16,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858335966] [2021-11-03 23:06:16,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:06:16,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:06:16,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:06:16,540 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 23:06:16,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-03 23:06:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:06:17,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 3371 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-03 23:06:17,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:06:18,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2021-11-03 23:06:20,045 INFO L354 Elim1Store]: treesize reduction 228, result has 4.6 percent of original size [2021-11-03 23:06:20,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 109 treesize of output 107 [2021-11-03 23:06:20,112 INFO L354 Elim1Store]: treesize reduction 160, result has 6.4 percent of original size [2021-11-03 23:06:20,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 99 treesize of output 93 [2021-11-03 23:06:20,121 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 23:06:20,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 81 [2021-11-03 23:06:20,716 INFO L354 Elim1Store]: treesize reduction 57, result has 17.4 percent of original size [2021-11-03 23:06:20,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 138 treesize of output 96 [2021-11-03 23:06:20,791 INFO L354 Elim1Store]: treesize reduction 41, result has 22.6 percent of original size [2021-11-03 23:06:20,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 84 treesize of output 66 [2021-11-03 23:06:21,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2080 trivial. 0 not checked. [2021-11-03 23:06:21,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 23:06:21,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:06:21,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437122914] [2021-11-03 23:06:21,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 23:06:21,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858335966] [2021-11-03 23:06:21,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858335966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:06:21,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:06:21,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-03 23:06:21,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756315736] [2021-11-03 23:06:21,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:06:21,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-03 23:06:21,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:06:21,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-03 23:06:21,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-11-03 23:06:21,022 INFO L87 Difference]: Start difference. First operand 259 states and 298 transitions. Second operand has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 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) [2021-11-03 23:06:23,066 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 [] [2021-11-03 23:06:33,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:06:33,548 INFO L93 Difference]: Finished difference Result 430 states and 522 transitions. [2021-11-03 23:06:33,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-03 23:06:33,549 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 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 155 [2021-11-03 23:06:33,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:06:33,550 INFO L225 Difference]: With dead ends: 430 [2021-11-03 23:06:33,550 INFO L226 Difference]: Without dead ends: 336 [2021-11-03 23:06:33,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 3069.93ms TimeCoverageRelationStatistics Valid=213, Invalid=717, Unknown=0, NotChecked=0, Total=930 [2021-11-03 23:06:33,551 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 484 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 2388 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9379.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.15ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 322 IncrementalHoareTripleChecker+Unchecked, 10208.55ms IncrementalHoareTripleChecker+Time [2021-11-03 23:06:33,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 0 Invalid, 2741 Unknown, 0 Unchecked, 29.15ms Time], IncrementalHoareTripleChecker [30 Valid, 2388 Invalid, 1 Unknown, 322 Unchecked, 10208.55ms Time] [2021-11-03 23:06:33,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2021-11-03 23:06:33,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 259. [2021-11-03 23:06:33,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 253 states have (on average 1.173913043478261) internal successors, (297), 258 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 23:06:33,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 297 transitions. [2021-11-03 23:06:33,564 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 297 transitions. Word has length 155 [2021-11-03 23:06:33,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:06:33,564 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 297 transitions. [2021-11-03 23:06:33,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 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) [2021-11-03 23:06:33,564 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 297 transitions. [2021-11-03 23:06:33,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-03 23:06:33,565 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:06:33,565 INFO L514 BasicCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:06:33,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-11-03 23:06:33,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-03 23:06:33,787 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 23:06:33,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:06:33,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1710144596, now seen corresponding path program 1 times [2021-11-03 23:06:33,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:06:33,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797902299] [2021-11-03 23:06:33,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:06:33,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:06:33,836 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 23:06:33,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245718636] [2021-11-03 23:06:33,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:06:33,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:06:33,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:06:33,837 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 23:06:33,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-03 23:06:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:06:35,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 3417 conjuncts, 451 conjunts are in the unsatisfiable core [2021-11-03 23:06:35,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:06:35,950 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 [2021-11-03 23:06:36,688 INFO L354 Elim1Store]: treesize reduction 133, result has 15.3 percent of original size [2021-11-03 23:06:36,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 45 treesize of output 53 [2021-11-03 23:06:38,016 INFO L354 Elim1Store]: treesize reduction 112, result has 15.8 percent of original size [2021-11-03 23:06:38,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 41 [2021-11-03 23:06:39,149 INFO L354 Elim1Store]: treesize reduction 78, result has 20.4 percent of original size [2021-11-03 23:06:39,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 35 treesize of output 45 [2021-11-03 23:06:40,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:06:40,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:06:41,067 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-11-03 23:06:41,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 31 treesize of output 50 [2021-11-03 23:06:41,694 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 11 treesize of output 7 [2021-11-03 23:06:41,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 76 [2021-11-03 23:06:41,728 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 69 treesize of output 65 [2021-11-03 23:06:41,913 INFO L354 Elim1Store]: treesize reduction 156, result has 17.5 percent of original size [2021-11-03 23:06:41,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 78 treesize of output 95 [2021-11-03 23:06:54,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 23:06:54,867 INFO L354 Elim1Store]: treesize reduction 144, result has 40.2 percent of original size [2021-11-03 23:06:54,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 94 treesize of output 170 [2021-11-03 23:06:55,585 INFO L354 Elim1Store]: treesize reduction 57, result has 23.0 percent of original size [2021-11-03 23:06:55,585 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 101 treesize of output 100 [2021-11-03 23:06:55,635 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-03 23:06:55,635 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 1 case distinctions, treesize of input 97 treesize of output 73 [2021-11-03 23:06:55,682 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-03 23:06:55,682 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 1 case distinctions, treesize of input 82 treesize of output 66 [2021-11-03 23:06:56,781 INFO L354 Elim1Store]: treesize reduction 57, result has 23.0 percent of original size [2021-11-03 23:06:56,781 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 89 treesize of output 88 [2021-11-03 23:06:56,841 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-03 23:06:56,841 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 76 treesize of output 56 [2021-11-03 23:06:56,927 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-03 23:06:56,927 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 61 treesize of output 45 [2021-11-03 23:06:59,131 INFO L354 Elim1Store]: treesize reduction 67, result has 14.1 percent of original size [2021-11-03 23:06:59,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 81 [2021-11-03 23:06:59,219 INFO L354 Elim1Store]: treesize reduction 27, result has 48.1 percent of original size [2021-11-03 23:06:59,220 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 75 treesize of output 88 [2021-11-03 23:06:59,324 INFO L354 Elim1Store]: treesize reduction 53, result has 28.4 percent of original size [2021-11-03 23:06:59,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 88 [2021-11-03 23:07:00,424 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:07:00,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:07:00,624 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:07:00,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 141 treesize of output 167 [2021-11-03 23:07:00,726 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:07:00,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 166 [2021-11-03 23:07:07,773 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:07:07,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 202 [2021-11-03 23:07:08,031 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:07:08,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 245 [2021-11-03 23:07:08,164 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-03 23:07:08,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 239 treesize of output 244 [2021-11-03 23:07:23,161 INFO L354 Elim1Store]: treesize reduction 132, result has 39.7 percent of original size [2021-11-03 23:07:23,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 206 treesize of output 266 [2021-11-03 23:07:23,632 INFO L354 Elim1Store]: treesize reduction 132, result has 39.7 percent of original size [2021-11-03 23:07:23,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 275 treesize of output 335 [2021-11-03 23:07:23,832 INFO L354 Elim1Store]: treesize reduction 192, result has 15.4 percent of original size [2021-11-03 23:07:23,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 344 treesize of output 352 [2021-11-03 23:07:43,426 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:07:43,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:07:43,548 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:07:43,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 141 treesize of output 143 [2021-11-03 23:07:43,769 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:07:43,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 163 [2021-11-03 23:07:54,512 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:07:54,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 202 [2021-11-03 23:07:54,726 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-03 23:07:54,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 196 treesize of output 201 [2021-11-03 23:07:55,036 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:07:55,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 192 treesize of output 235 [2021-11-03 23:08:07,363 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:08:07,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:08:07,504 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:08:07,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 141 treesize of output 143 [2021-11-03 23:08:07,719 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:08:07,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 163 [2021-11-03 23:08:12,475 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:08:12,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:08:12,596 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:08:12,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 137 [2021-11-03 23:08:12,807 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:08:12,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 157 [2021-11-03 23:08:18,085 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:08:18,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:08:18,308 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:08:18,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 141 treesize of output 167 [2021-11-03 23:08:18,427 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:08:18,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 170 treesize of output 172 [2021-11-03 23:08:23,989 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:08:23,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 114 [2021-11-03 23:08:24,209 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:08:24,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 134 [2021-11-03 23:08:24,416 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:08:24,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 163 [2021-11-03 23:08:29,698 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:08:29,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 114 [2021-11-03 23:08:29,913 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:08:29,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 134 [2021-11-03 23:08:30,141 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:08:30,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 157 [2021-11-03 23:08:35,435 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:08:35,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 114 [2021-11-03 23:08:35,671 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:08:35,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 134 [2021-11-03 23:08:35,879 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:08:35,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 163 [2021-11-03 23:08:41,803 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:08:41,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:08:41,936 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:08:41,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 141 treesize of output 143 [2021-11-03 23:08:42,169 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:08:42,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 163 [2021-11-03 23:08:59,720 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:08:59,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 202 [2021-11-03 23:08:59,883 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-03 23:08:59,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 207 [2021-11-03 23:09:00,176 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:09:00,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 198 treesize of output 241 [2021-11-03 23:09:11,843 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:09:11,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:09:12,073 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:09:12,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 161 [2021-11-03 23:09:12,191 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:09:12,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 158 treesize of output 160 [2021-11-03 23:09:18,448 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:09:18,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:09:18,703 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:09:18,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 141 treesize of output 167 [2021-11-03 23:09:18,843 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:09:18,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 166 [2021-11-03 23:09:37,527 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:09:37,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 202 [2021-11-03 23:09:37,944 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:09:37,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 196 treesize of output 239 [2021-11-03 23:09:38,153 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-03 23:09:38,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 233 treesize of output 238 [2021-11-03 23:09:51,836 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:09:51,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:09:52,075 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:09:52,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 161 [2021-11-03 23:09:52,221 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:09:52,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 158 treesize of output 160 [2021-11-03 23:10:08,522 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:10:08,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 202 [2021-11-03 23:10:08,876 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:10:08,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 208 treesize of output 251 [2021-11-03 23:10:09,040 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-03 23:10:09,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 257 treesize of output 262 [2021-11-03 23:10:22,718 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:10:22,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 114 [2021-11-03 23:10:22,978 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:10:22,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 134 [2021-11-03 23:10:23,234 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:10:23,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 157 [2021-11-03 23:10:29,428 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:10:29,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:10:29,576 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:10:29,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 141 treesize of output 143 [2021-11-03 23:10:29,833 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:10:29,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 163 [2021-11-03 23:10:36,278 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:10:36,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:10:36,588 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:10:36,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 161 [2021-11-03 23:10:36,726 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:10:36,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 166 [2021-11-03 23:10:43,141 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:10:43,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:10:43,291 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:10:43,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 137 [2021-11-03 23:10:43,525 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:10:43,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 157 [2021-11-03 23:10:59,041 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:10:59,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 202 [2021-11-03 23:10:59,381 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:10:59,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 245 [2021-11-03 23:10:59,552 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-03 23:10:59,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 239 treesize of output 244 [2021-11-03 23:11:13,712 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:11:13,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:11:14,014 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:11:14,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 161 [2021-11-03 23:11:14,139 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:11:14,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 166 [2021-11-03 23:11:40,754 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:11:40,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 202 [2021-11-03 23:11:40,992 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-03 23:11:40,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 196 treesize of output 201 [2021-11-03 23:11:41,351 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:11:41,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 192 treesize of output 235 [2021-11-03 23:11:54,801 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:11:54,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:11:54,975 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:11:54,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 141 treesize of output 143 [2021-11-03 23:11:55,260 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:11:55,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 163 [2021-11-03 23:12:02,222 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:12:02,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 114 [2021-11-03 23:12:02,520 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:12:02,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 134 [2021-11-03 23:12:02,771 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:12:02,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 163 [2021-11-03 23:12:09,683 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:12:09,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:12:09,843 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:12:09,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 137 [2021-11-03 23:12:10,124 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:12:10,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 157 [2021-11-03 23:12:35,407 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:12:35,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 202 [2021-11-03 23:12:35,599 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-03 23:12:35,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 207 [2021-11-03 23:12:35,978 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:12:35,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 198 treesize of output 241 [2021-11-03 23:12:50,201 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:12:50,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:12:50,349 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:12:50,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 137 [2021-11-03 23:12:50,604 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:12:50,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 157 [2021-11-03 23:13:06,871 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:13:06,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 202 [2021-11-03 23:13:07,371 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:13:07,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 196 treesize of output 239 [2021-11-03 23:13:07,580 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-03 23:13:07,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 239 treesize of output 244 [2021-11-03 23:13:31,442 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:13:31,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 202 [2021-11-03 23:13:31,889 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:13:31,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 208 treesize of output 251 [2021-11-03 23:13:32,089 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-03 23:13:32,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 245 treesize of output 250 [2021-11-03 23:13:45,872 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:13:45,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:13:46,151 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:13:46,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 161 [2021-11-03 23:13:46,292 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:13:46,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 166 [2021-11-03 23:13:55,475 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:13:55,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 202 [2021-11-03 23:13:55,653 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-03 23:13:55,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 207 [2021-11-03 23:13:56,000 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:13:56,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 198 treesize of output 241 [2021-11-03 23:14:10,829 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:14:10,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 114 [2021-11-03 23:14:11,124 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:14:11,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 134 [2021-11-03 23:14:11,386 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:14:11,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 163 [2021-11-03 23:14:17,925 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:14:17,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:14:18,072 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:14:18,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 137 [2021-11-03 23:14:18,288 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:14:18,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 157 [2021-11-03 23:14:31,355 INFO L354 Elim1Store]: treesize reduction 132, result has 39.7 percent of original size [2021-11-03 23:14:31,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 206 treesize of output 266 [2021-11-03 23:14:31,902 INFO L354 Elim1Store]: treesize reduction 132, result has 39.7 percent of original size [2021-11-03 23:14:31,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 269 treesize of output 329 [2021-11-03 23:14:32,150 INFO L354 Elim1Store]: treesize reduction 192, result has 15.4 percent of original size [2021-11-03 23:14:32,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 326 treesize of output 334 [2021-11-03 23:15:02,376 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:15:02,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:15:02,589 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:15:02,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 137 [2021-11-03 23:15:02,890 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:15:02,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 157 [2021-11-03 23:15:16,256 INFO L354 Elim1Store]: treesize reduction 132, result has 39.7 percent of original size [2021-11-03 23:15:16,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 206 treesize of output 266 [2021-11-03 23:15:16,602 INFO L354 Elim1Store]: treesize reduction 192, result has 15.4 percent of original size [2021-11-03 23:15:16,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 269 treesize of output 277 [2021-11-03 23:15:17,006 INFO L354 Elim1Store]: treesize reduction 132, result has 39.7 percent of original size [2021-11-03 23:15:17,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 265 treesize of output 325 [2021-11-03 23:15:50,295 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:15:50,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:15:50,511 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:15:50,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 137 [2021-11-03 23:15:50,765 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:15:50,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 157 [2021-11-03 23:16:04,788 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:16:04,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 202 [2021-11-03 23:16:04,988 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-03 23:16:04,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 207 [2021-11-03 23:16:05,347 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:16:05,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 198 treesize of output 241 [2021-11-03 23:16:23,797 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:16:23,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 138 [2021-11-03 23:16:23,957 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:16:23,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 137 [2021-11-03 23:16:24,220 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:16:24,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 157 [2021-11-03 23:16:33,659 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-03 23:16:33,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 114 [2021-11-03 23:16:34,048 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:16:34,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 134 [2021-11-03 23:16:34,364 INFO L354 Elim1Store]: treesize reduction 44, result has 48.2 percent of original size [2021-11-03 23:16:34,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 163 [2021-11-03 23:16:51,977 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:16:51,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 202 [2021-11-03 23:16:52,196 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-03 23:16:52,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 207 [2021-11-03 23:16:52,565 INFO L354 Elim1Store]: treesize reduction 82, result has 43.8 percent of original size [2021-11-03 23:16:52,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 198 treesize of output 241 Killed by 15