./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_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 aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-22 19:19:18,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 19:19:18,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 19:19:18,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 19:19:18,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 19:19:18,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 19:19:18,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 19:19:18,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 19:19:18,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 19:19:18,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 19:19:18,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 19:19:18,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 19:19:18,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 19:19:18,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 19:19:18,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 19:19:18,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 19:19:18,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 19:19:18,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 19:19:18,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 19:19:18,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 19:19:18,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 19:19:18,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 19:19:18,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 19:19:18,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 19:19:18,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 19:19:18,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 19:19:18,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 19:19:18,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 19:19:18,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 19:19:18,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 19:19:18,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 19:19:18,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 19:19:18,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 19:19:18,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 19:19:18,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 19:19:18,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 19:19:18,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 19:19:18,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 19:19:18,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 19:19:18,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 19:19:18,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 19:19:18,559 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 19:19:18,578 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 19:19:18,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 19:19:18,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 19:19:18,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 19:19:18,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 19:19:18,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 19:19:18,584 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 19:19:18,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 19:19:18,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 19:19:18,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 19:19:18,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 19:19:18,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 19:19:18,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 19:19:18,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 19:19:18,586 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 19:19:18,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 19:19:18,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 19:19:18,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 19:19:18,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 19:19:18,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 19:19:18,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 19:19:18,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 19:19:18,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 19:19:18,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 19:19:18,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 19:19:18,588 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 19:19:18,588 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 19:19:18,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 19:19:18,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 19:19:18,589 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 [2021-11-22 19:19:18,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 19:19:18,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 19:19:18,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 19:19:18,777 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 19:19:18,779 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 19:19:18,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2021-11-22 19:19:18,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815534739/082458134836449aa6422b1dad00492f/FLAG2ca296127 [2021-11-22 19:19:19,439 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 19:19:19,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2021-11-22 19:19:19,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815534739/082458134836449aa6422b1dad00492f/FLAG2ca296127 [2021-11-22 19:19:19,851 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815534739/082458134836449aa6422b1dad00492f [2021-11-22 19:19:19,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 19:19:19,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 19:19:19,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 19:19:19,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 19:19:19,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 19:19:19,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:19:19" (1/1) ... [2021-11-22 19:19:19,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe8f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:19:19, skipping insertion in model container [2021-11-22 19:19:19,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:19:19" (1/1) ... [2021-11-22 19:19:19,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 19:19:19,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 19:19:20,123 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2021-11-22 19:19:20,131 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2021-11-22 19:19:20,720 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:20,721 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:20,722 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:20,723 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:20,724 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:20,735 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:20,739 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:20,741 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:20,742 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:20,947 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-22 19:19:20,948 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-22 19:19:20,948 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-22 19:19:20,949 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-22 19:19:20,950 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-22 19:19:20,950 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-22 19:19:20,951 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-22 19:19:20,951 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-22 19:19:20,951 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-22 19:19:20,952 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-22 19:19:21,037 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-22 19:19:21,139 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:21,140 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:21,187 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 19:19:21,250 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 19:19:21,267 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2021-11-22 19:19:21,268 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2021-11-22 19:19:21,290 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:21,292 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:21,292 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:21,293 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:21,293 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:21,302 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:21,302 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:21,303 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:21,303 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:21,318 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-22 19:19:21,319 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-22 19:19:21,319 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-22 19:19:21,320 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-22 19:19:21,320 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-22 19:19:21,321 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-22 19:19:21,321 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-22 19:19:21,321 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-22 19:19:21,321 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-22 19:19:21,322 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-22 19:19:21,335 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-22 19:19:21,390 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:21,391 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 19:19:21,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 19:19:21,610 INFO L208 MainTranslator]: Completed translation [2021-11-22 19:19:21,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:19:21 WrapperNode [2021-11-22 19:19:21,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 19:19:21,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 19:19:21,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 19:19:21,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 19:19:21,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:19:21" (1/1) ... [2021-11-22 19:19:21,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:19:21" (1/1) ... [2021-11-22 19:19:21,779 INFO L137 Inliner]: procedures = 691, calls = 2643, calls flagged for inlining = 965, calls inlined = 61, statements flattened = 1508 [2021-11-22 19:19:21,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 19:19:21,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 19:19:21,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 19:19:21,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 19:19:21,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:19:21" (1/1) ... [2021-11-22 19:19:21,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:19:21" (1/1) ... [2021-11-22 19:19:21,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:19:21" (1/1) ... [2021-11-22 19:19:21,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:19:21" (1/1) ... [2021-11-22 19:19:21,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:19:21" (1/1) ... [2021-11-22 19:19:21,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:19:21" (1/1) ... [2021-11-22 19:19:21,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:19:21" (1/1) ... [2021-11-22 19:19:21,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 19:19:21,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 19:19:21,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 19:19:21,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 19:19:21,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:19:21" (1/1) ... [2021-11-22 19:19:21,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 19:19:21,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 19:19:21,897 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) [2021-11-22 19:19:21,925 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 [2021-11-22 19:19:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 19:19:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 19:19:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 19:19:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 19:19:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 19:19:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 19:19:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 19:19:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 19:19:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 19:19:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 19:19:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 19:19:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 19:19:22,181 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 19:19:22,182 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 19:19:23,133 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 19:19:23,145 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 19:19:23,146 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 19:19:23,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:19:23 BoogieIcfgContainer [2021-11-22 19:19:23,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 19:19:23,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 19:19:23,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 19:19:23,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 19:19:23,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:19:19" (1/3) ... [2021-11-22 19:19:23,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec0085f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:19:23, skipping insertion in model container [2021-11-22 19:19:23,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:19:21" (2/3) ... [2021-11-22 19:19:23,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec0085f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:19:23, skipping insertion in model container [2021-11-22 19:19:23,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:19:23" (3/3) ... [2021-11-22 19:19:23,154 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness.i [2021-11-22 19:19:23,157 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 19:19:23,157 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-11-22 19:19:23,187 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 19:19:23,192 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 [2021-11-22 19:19:23,192 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-11-22 19:19:23,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 262 states, 244 states have (on average 1.4754098360655739) internal successors, (360), 261 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:23,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 19:19:23,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:23,211 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] [2021-11-22 19:19:23,212 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:23,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:23,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1026196011, now seen corresponding path program 1 times [2021-11-22 19:19:23,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:23,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082230975] [2021-11-22 19:19:23,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:23,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:23,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:23,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:23,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082230975] [2021-11-22 19:19:23,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082230975] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:23,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:23,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 19:19:23,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467340554] [2021-11-22 19:19:23,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:23,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 19:19:23,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:23,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 19:19:23,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 19:19:23,565 INFO L87 Difference]: Start difference. First operand has 262 states, 244 states have (on average 1.4754098360655739) internal successors, (360), 261 states have internal predecessors, (360), 0 states have call successors, (0), 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 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:23,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:23,588 INFO L93 Difference]: Finished difference Result 520 states and 715 transitions. [2021-11-22 19:19:23,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 19:19:23,590 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2021-11-22 19:19:23,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:23,596 INFO L225 Difference]: With dead ends: 520 [2021-11-22 19:19:23,596 INFO L226 Difference]: Without dead ends: 257 [2021-11-22 19:19:23,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 19:19:23,601 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:23,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 19:19:23,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-11-22 19:19:23,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2021-11-22 19:19:23,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 240 states have (on average 1.35) internal successors, (324), 256 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:23,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 324 transitions. [2021-11-22 19:19:23,632 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 324 transitions. Word has length 43 [2021-11-22 19:19:23,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:23,633 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 324 transitions. [2021-11-22 19:19:23,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:23,633 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 324 transitions. [2021-11-22 19:19:23,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 19:19:23,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:23,634 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] [2021-11-22 19:19:23,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 19:19:23,634 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:23,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:23,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1821286743, now seen corresponding path program 1 times [2021-11-22 19:19:23,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:23,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534792010] [2021-11-22 19:19:23,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:23,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:23,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:23,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:23,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534792010] [2021-11-22 19:19:23,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534792010] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:23,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:23,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 19:19:23,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802716339] [2021-11-22 19:19:23,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:23,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 19:19:23,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:23,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 19:19:23,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 19:19:23,780 INFO L87 Difference]: Start difference. First operand 257 states and 324 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:23,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:23,832 INFO L93 Difference]: Finished difference Result 488 states and 614 transitions. [2021-11-22 19:19:23,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 19:19:23,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2021-11-22 19:19:23,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:23,833 INFO L225 Difference]: With dead ends: 488 [2021-11-22 19:19:23,834 INFO L226 Difference]: Without dead ends: 257 [2021-11-22 19:19:23,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 19:19:23,835 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 398 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:23,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 516 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 19:19:23,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-11-22 19:19:23,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2021-11-22 19:19:23,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 240 states have (on average 1.3375) internal successors, (321), 256 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:23,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 321 transitions. [2021-11-22 19:19:23,845 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 321 transitions. Word has length 43 [2021-11-22 19:19:23,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:23,845 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 321 transitions. [2021-11-22 19:19:23,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:23,846 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 321 transitions. [2021-11-22 19:19:23,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-22 19:19:23,847 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:23,847 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] [2021-11-22 19:19:23,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 19:19:23,847 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:23,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:23,848 INFO L85 PathProgramCache]: Analyzing trace with hash 704440679, now seen corresponding path program 1 times [2021-11-22 19:19:23,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:23,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079315012] [2021-11-22 19:19:23,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:23,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:24,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:24,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:24,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079315012] [2021-11-22 19:19:24,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079315012] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:24,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:24,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 19:19:24,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034750778] [2021-11-22 19:19:24,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:24,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 19:19:24,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:24,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 19:19:24,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 19:19:24,017 INFO L87 Difference]: Start difference. First operand 257 states and 321 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:24,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:24,102 INFO L93 Difference]: Finished difference Result 539 states and 680 transitions. [2021-11-22 19:19:24,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 19:19:24,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2021-11-22 19:19:24,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:24,104 INFO L225 Difference]: With dead ends: 539 [2021-11-22 19:19:24,104 INFO L226 Difference]: Without dead ends: 307 [2021-11-22 19:19:24,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 19:19:24,106 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 109 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:24,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 902 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 19:19:24,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-22 19:19:24,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 267. [2021-11-22 19:19:24,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 250 states have (on average 1.324) internal successors, (331), 266 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:24,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 331 transitions. [2021-11-22 19:19:24,114 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 331 transitions. Word has length 55 [2021-11-22 19:19:24,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:24,114 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 331 transitions. [2021-11-22 19:19:24,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:24,114 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 331 transitions. [2021-11-22 19:19:24,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-22 19:19:24,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:24,116 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] [2021-11-22 19:19:24,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 19:19:24,116 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:24,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:24,117 INFO L85 PathProgramCache]: Analyzing trace with hash 2076247977, now seen corresponding path program 1 times [2021-11-22 19:19:24,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:24,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231865113] [2021-11-22 19:19:24,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:24,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:24,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:24,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:24,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231865113] [2021-11-22 19:19:24,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231865113] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:24,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:24,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 19:19:24,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006622162] [2021-11-22 19:19:24,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:24,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 19:19:24,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:24,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 19:19:24,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 19:19:24,257 INFO L87 Difference]: Start difference. First operand 267 states and 331 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:24,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:24,302 INFO L93 Difference]: Finished difference Result 483 states and 598 transitions. [2021-11-22 19:19:24,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 19:19:24,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2021-11-22 19:19:24,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:24,303 INFO L225 Difference]: With dead ends: 483 [2021-11-22 19:19:24,303 INFO L226 Difference]: Without dead ends: 267 [2021-11-22 19:19:24,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 19:19:24,306 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 333 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:24,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 581 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 19:19:24,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-11-22 19:19:24,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2021-11-22 19:19:24,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 250 states have (on average 1.316) internal successors, (329), 266 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) [2021-11-22 19:19:24,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 329 transitions. [2021-11-22 19:19:24,322 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 329 transitions. Word has length 55 [2021-11-22 19:19:24,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:24,323 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 329 transitions. [2021-11-22 19:19:24,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:24,324 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 329 transitions. [2021-11-22 19:19:24,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-22 19:19:24,327 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:24,327 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] [2021-11-22 19:19:24,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 19:19:24,330 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:24,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:24,331 INFO L85 PathProgramCache]: Analyzing trace with hash 496870244, now seen corresponding path program 1 times [2021-11-22 19:19:24,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:24,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331788976] [2021-11-22 19:19:24,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:24,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:24,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:24,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:24,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331788976] [2021-11-22 19:19:24,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331788976] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:24,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:24,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 19:19:24,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464071450] [2021-11-22 19:19:24,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:24,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 19:19:24,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:24,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 19:19:24,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 19:19:24,462 INFO L87 Difference]: Start difference. First operand 267 states and 329 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:24,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:24,525 INFO L93 Difference]: Finished difference Result 451 states and 552 transitions. [2021-11-22 19:19:24,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 19:19:24,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-11-22 19:19:24,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:24,527 INFO L225 Difference]: With dead ends: 451 [2021-11-22 19:19:24,527 INFO L226 Difference]: Without dead ends: 267 [2021-11-22 19:19:24,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 19:19:24,530 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 567 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:24,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [567 Valid, 623 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 19:19:24,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-11-22 19:19:24,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2021-11-22 19:19:24,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 250 states have (on average 1.304) internal successors, (326), 266 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:24,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 326 transitions. [2021-11-22 19:19:24,535 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 326 transitions. Word has length 57 [2021-11-22 19:19:24,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:24,535 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 326 transitions. [2021-11-22 19:19:24,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:24,535 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 326 transitions. [2021-11-22 19:19:24,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-22 19:19:24,539 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:24,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:24,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 19:19:24,540 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:24,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:24,541 INFO L85 PathProgramCache]: Analyzing trace with hash 2087499103, now seen corresponding path program 1 times [2021-11-22 19:19:24,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:24,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392532328] [2021-11-22 19:19:24,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:24,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:24,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:24,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:24,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392532328] [2021-11-22 19:19:24,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392532328] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:24,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:24,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-22 19:19:24,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617841016] [2021-11-22 19:19:24,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:24,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 19:19:24,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:24,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 19:19:24,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-22 19:19:24,826 INFO L87 Difference]: Start difference. First operand 267 states and 326 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:25,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:25,244 INFO L93 Difference]: Finished difference Result 636 states and 765 transitions. [2021-11-22 19:19:25,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 19:19:25,245 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-22 19:19:25,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:25,246 INFO L225 Difference]: With dead ends: 636 [2021-11-22 19:19:25,246 INFO L226 Difference]: Without dead ends: 458 [2021-11-22 19:19:25,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-11-22 19:19:25,247 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 816 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:25,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [816 Valid, 1341 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 19:19:25,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2021-11-22 19:19:25,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 306. [2021-11-22 19:19:25,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 289 states have (on average 1.2975778546712802) internal successors, (375), 305 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:25,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 375 transitions. [2021-11-22 19:19:25,256 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 375 transitions. Word has length 59 [2021-11-22 19:19:25,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:25,256 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 375 transitions. [2021-11-22 19:19:25,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:25,256 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 375 transitions. [2021-11-22 19:19:25,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-22 19:19:25,258 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:25,258 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] [2021-11-22 19:19:25,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 19:19:25,258 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:25,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:25,259 INFO L85 PathProgramCache]: Analyzing trace with hash -165160809, now seen corresponding path program 1 times [2021-11-22 19:19:25,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:25,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800711541] [2021-11-22 19:19:25,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:25,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:25,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:25,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:25,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800711541] [2021-11-22 19:19:25,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800711541] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:25,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:25,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 19:19:25,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112853452] [2021-11-22 19:19:25,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:25,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 19:19:25,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:25,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 19:19:25,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 19:19:25,480 INFO L87 Difference]: Start difference. First operand 306 states and 375 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:25,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:25,634 INFO L93 Difference]: Finished difference Result 632 states and 756 transitions. [2021-11-22 19:19:25,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 19:19:25,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-11-22 19:19:25,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:25,635 INFO L225 Difference]: With dead ends: 632 [2021-11-22 19:19:25,636 INFO L226 Difference]: Without dead ends: 401 [2021-11-22 19:19:25,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-22 19:19:25,640 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 143 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:25,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 2143 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 19:19:25,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-11-22 19:19:25,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 306. [2021-11-22 19:19:25,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 289 states have (on average 1.28719723183391) internal successors, (372), 305 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:25,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 372 transitions. [2021-11-22 19:19:25,649 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 372 transitions. Word has length 63 [2021-11-22 19:19:25,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:25,650 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 372 transitions. [2021-11-22 19:19:25,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:25,651 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 372 transitions. [2021-11-22 19:19:25,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-22 19:19:25,652 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:25,652 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] [2021-11-22 19:19:25,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 19:19:25,652 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:25,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:25,653 INFO L85 PathProgramCache]: Analyzing trace with hash -51426837, now seen corresponding path program 1 times [2021-11-22 19:19:25,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:25,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876688657] [2021-11-22 19:19:25,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:25,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:25,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:25,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:25,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876688657] [2021-11-22 19:19:25,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876688657] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:25,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:25,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 19:19:25,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775850836] [2021-11-22 19:19:25,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:25,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 19:19:25,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:25,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 19:19:25,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 19:19:25,813 INFO L87 Difference]: Start difference. First operand 306 states and 372 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:25,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:25,861 INFO L93 Difference]: Finished difference Result 434 states and 520 transitions. [2021-11-22 19:19:25,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 19:19:25,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-11-22 19:19:25,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:25,863 INFO L225 Difference]: With dead ends: 434 [2021-11-22 19:19:25,863 INFO L226 Difference]: Without dead ends: 306 [2021-11-22 19:19:25,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 19:19:25,864 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 594 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:25,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [594 Valid, 547 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 19:19:25,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-11-22 19:19:25,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2021-11-22 19:19:25,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 289 states have (on average 1.2802768166089966) internal successors, (370), 305 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:25,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 370 transitions. [2021-11-22 19:19:25,871 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 370 transitions. Word has length 63 [2021-11-22 19:19:25,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:25,872 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 370 transitions. [2021-11-22 19:19:25,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:25,874 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 370 transitions. [2021-11-22 19:19:25,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-22 19:19:25,875 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:25,875 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] [2021-11-22 19:19:25,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 19:19:25,876 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:25,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:25,876 INFO L85 PathProgramCache]: Analyzing trace with hash 452910898, now seen corresponding path program 1 times [2021-11-22 19:19:25,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:25,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838761480] [2021-11-22 19:19:25,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:25,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:26,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:26,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838761480] [2021-11-22 19:19:26,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838761480] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:26,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:26,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 19:19:26,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817042568] [2021-11-22 19:19:26,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:26,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 19:19:26,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:26,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 19:19:26,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-22 19:19:26,097 INFO L87 Difference]: Start difference. First operand 306 states and 370 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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) [2021-11-22 19:19:26,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:26,342 INFO L93 Difference]: Finished difference Result 701 states and 832 transitions. [2021-11-22 19:19:26,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 19:19:26,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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 [2021-11-22 19:19:26,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:26,345 INFO L225 Difference]: With dead ends: 701 [2021-11-22 19:19:26,345 INFO L226 Difference]: Without dead ends: 473 [2021-11-22 19:19:26,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-22 19:19:26,346 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 472 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:26,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [472 Valid, 1065 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 19:19:26,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-11-22 19:19:26,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 306. [2021-11-22 19:19:26,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 289 states have (on average 1.259515570934256) internal successors, (364), 305 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:26,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 364 transitions. [2021-11-22 19:19:26,356 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 364 transitions. Word has length 65 [2021-11-22 19:19:26,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:26,357 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 364 transitions. [2021-11-22 19:19:26,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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) [2021-11-22 19:19:26,357 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 364 transitions. [2021-11-22 19:19:26,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-22 19:19:26,359 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:26,359 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] [2021-11-22 19:19:26,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-22 19:19:26,360 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:26,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:26,360 INFO L85 PathProgramCache]: Analyzing trace with hash 475543152, now seen corresponding path program 1 times [2021-11-22 19:19:26,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:26,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068837529] [2021-11-22 19:19:26,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:26,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:26,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:26,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:26,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068837529] [2021-11-22 19:19:26,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068837529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:26,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:26,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 19:19:26,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278786061] [2021-11-22 19:19:26,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:26,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 19:19:26,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:26,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 19:19:26,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-22 19:19:26,614 INFO L87 Difference]: Start difference. First operand 306 states and 364 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 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) [2021-11-22 19:19:27,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:27,122 INFO L93 Difference]: Finished difference Result 651 states and 762 transitions. [2021-11-22 19:19:27,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 19:19:27,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 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 [2021-11-22 19:19:27,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:27,124 INFO L225 Difference]: With dead ends: 651 [2021-11-22 19:19:27,124 INFO L226 Difference]: Without dead ends: 466 [2021-11-22 19:19:27,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-11-22 19:19:27,125 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 901 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:27,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [901 Valid, 1903 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 19:19:27,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2021-11-22 19:19:27,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 376. [2021-11-22 19:19:27,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 359 states have (on average 1.267409470752089) internal successors, (455), 375 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:27,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 455 transitions. [2021-11-22 19:19:27,134 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 455 transitions. Word has length 65 [2021-11-22 19:19:27,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:27,135 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 455 transitions. [2021-11-22 19:19:27,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 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) [2021-11-22 19:19:27,135 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 455 transitions. [2021-11-22 19:19:27,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-22 19:19:27,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:27,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:27,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-22 19:19:27,138 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:27,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:27,138 INFO L85 PathProgramCache]: Analyzing trace with hash -579601632, now seen corresponding path program 1 times [2021-11-22 19:19:27,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:27,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105617905] [2021-11-22 19:19:27,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:27,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:27,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:27,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:27,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105617905] [2021-11-22 19:19:27,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105617905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:27,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:27,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 19:19:27,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511917513] [2021-11-22 19:19:27,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:27,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 19:19:27,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:27,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 19:19:27,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 19:19:27,290 INFO L87 Difference]: Start difference. First operand 376 states and 455 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) [2021-11-22 19:19:27,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:27,430 INFO L93 Difference]: Finished difference Result 627 states and 736 transitions. [2021-11-22 19:19:27,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 19:19:27,430 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 69 [2021-11-22 19:19:27,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:27,432 INFO L225 Difference]: With dead ends: 627 [2021-11-22 19:19:27,432 INFO L226 Difference]: Without dead ends: 621 [2021-11-22 19:19:27,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-22 19:19:27,433 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 311 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:27,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 1274 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 19:19:27,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2021-11-22 19:19:27,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 396. [2021-11-22 19:19:27,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 379 states have (on average 1.2532981530343008) internal successors, (475), 395 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:27,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 475 transitions. [2021-11-22 19:19:27,443 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 475 transitions. Word has length 69 [2021-11-22 19:19:27,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:27,443 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 475 transitions. [2021-11-22 19:19:27,443 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) [2021-11-22 19:19:27,444 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 475 transitions. [2021-11-22 19:19:27,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-22 19:19:27,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:27,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:27,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-22 19:19:27,445 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:27,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:27,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1921333697, now seen corresponding path program 1 times [2021-11-22 19:19:27,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:27,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366167003] [2021-11-22 19:19:27,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:27,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:27,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:27,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:27,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366167003] [2021-11-22 19:19:27,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366167003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:27,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:27,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 19:19:27,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811785343] [2021-11-22 19:19:27,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:27,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 19:19:27,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:27,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 19:19:27,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-22 19:19:27,723 INFO L87 Difference]: Start difference. First operand 396 states and 475 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 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) [2021-11-22 19:19:28,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:28,001 INFO L93 Difference]: Finished difference Result 881 states and 1051 transitions. [2021-11-22 19:19:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 19:19:28,001 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 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 71 [2021-11-22 19:19:28,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:28,003 INFO L225 Difference]: With dead ends: 881 [2021-11-22 19:19:28,003 INFO L226 Difference]: Without dead ends: 568 [2021-11-22 19:19:28,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-11-22 19:19:28,004 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 1168 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:28,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1168 Valid, 1517 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 19:19:28,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2021-11-22 19:19:28,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 520. [2021-11-22 19:19:28,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 503 states have (on average 1.2584493041749503) internal successors, (633), 519 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:28,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 633 transitions. [2021-11-22 19:19:28,016 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 633 transitions. Word has length 71 [2021-11-22 19:19:28,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:28,017 INFO L470 AbstractCegarLoop]: Abstraction has 520 states and 633 transitions. [2021-11-22 19:19:28,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 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) [2021-11-22 19:19:28,017 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 633 transitions. [2021-11-22 19:19:28,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-22 19:19:28,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:28,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:28,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-22 19:19:28,018 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:28,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:28,019 INFO L85 PathProgramCache]: Analyzing trace with hash -788813544, now seen corresponding path program 1 times [2021-11-22 19:19:28,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:28,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902860971] [2021-11-22 19:19:28,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:28,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:28,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:28,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:28,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902860971] [2021-11-22 19:19:28,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902860971] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:28,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:28,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 19:19:28,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755551525] [2021-11-22 19:19:28,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:28,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 19:19:28,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:28,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 19:19:28,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-22 19:19:28,166 INFO L87 Difference]: Start difference. First operand 520 states and 633 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:28,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:28,452 INFO L93 Difference]: Finished difference Result 1560 states and 1902 transitions. [2021-11-22 19:19:28,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 19:19:28,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2021-11-22 19:19:28,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:28,455 INFO L225 Difference]: With dead ends: 1560 [2021-11-22 19:19:28,455 INFO L226 Difference]: Without dead ends: 1062 [2021-11-22 19:19:28,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-22 19:19:28,456 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 419 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:28,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 883 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 19:19:28,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2021-11-22 19:19:28,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 597. [2021-11-22 19:19:28,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 580 states have (on average 1.2620689655172415) internal successors, (732), 596 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:28,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 732 transitions. [2021-11-22 19:19:28,471 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 732 transitions. Word has length 73 [2021-11-22 19:19:28,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:28,471 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 732 transitions. [2021-11-22 19:19:28,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:28,471 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 732 transitions. [2021-11-22 19:19:28,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-22 19:19:28,472 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:28,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:28,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-22 19:19:28,472 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:28,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:28,473 INFO L85 PathProgramCache]: Analyzing trace with hash -108755174, now seen corresponding path program 1 times [2021-11-22 19:19:28,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:28,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637283338] [2021-11-22 19:19:28,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:28,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:28,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:28,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:28,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637283338] [2021-11-22 19:19:28,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637283338] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:28,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:28,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-22 19:19:28,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295034774] [2021-11-22 19:19:28,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:28,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-22 19:19:28,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:28,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-22 19:19:28,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-11-22 19:19:28,946 INFO L87 Difference]: Start difference. First operand 597 states and 732 transitions. Second operand has 15 states, 15 states have (on average 4.866666666666666) internal successors, (73), 15 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:30,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:30,518 INFO L93 Difference]: Finished difference Result 2260 states and 2740 transitions. [2021-11-22 19:19:30,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-22 19:19:30,518 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.866666666666666) internal successors, (73), 15 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2021-11-22 19:19:30,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:30,523 INFO L225 Difference]: With dead ends: 2260 [2021-11-22 19:19:30,523 INFO L226 Difference]: Without dead ends: 2059 [2021-11-22 19:19:30,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=633, Invalid=1529, Unknown=0, NotChecked=0, Total=2162 [2021-11-22 19:19:30,525 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 5441 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5441 SdHoareTripleChecker+Valid, 2308 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:30,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5441 Valid, 2308 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-22 19:19:30,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2021-11-22 19:19:30,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 973. [2021-11-22 19:19:30,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 956 states have (on average 1.2594142259414225) internal successors, (1204), 972 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:30,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1204 transitions. [2021-11-22 19:19:30,572 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1204 transitions. Word has length 73 [2021-11-22 19:19:30,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:30,573 INFO L470 AbstractCegarLoop]: Abstraction has 973 states and 1204 transitions. [2021-11-22 19:19:30,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.866666666666666) internal successors, (73), 15 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:30,573 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1204 transitions. [2021-11-22 19:19:30,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-22 19:19:30,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:30,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:30,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-22 19:19:30,575 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:30,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:30,575 INFO L85 PathProgramCache]: Analyzing trace with hash 149410264, now seen corresponding path program 1 times [2021-11-22 19:19:30,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:30,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072314220] [2021-11-22 19:19:30,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:30,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:30,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:30,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:30,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072314220] [2021-11-22 19:19:30,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072314220] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:30,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:30,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 19:19:30,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111305029] [2021-11-22 19:19:30,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:30,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 19:19:30,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:30,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 19:19:30,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-22 19:19:30,765 INFO L87 Difference]: Start difference. First operand 973 states and 1204 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:31,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:31,454 INFO L93 Difference]: Finished difference Result 2320 states and 2861 transitions. [2021-11-22 19:19:31,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 19:19:31,454 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2021-11-22 19:19:31,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:31,459 INFO L225 Difference]: With dead ends: 2320 [2021-11-22 19:19:31,459 INFO L226 Difference]: Without dead ends: 1834 [2021-11-22 19:19:31,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2021-11-22 19:19:31,460 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 1638 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1638 SdHoareTripleChecker+Valid, 2029 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:31,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1638 Valid, 2029 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-22 19:19:31,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2021-11-22 19:19:31,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1092. [2021-11-22 19:19:31,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 1075 states have (on average 1.2483720930232558) internal successors, (1342), 1091 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:31,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1342 transitions. [2021-11-22 19:19:31,494 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1342 transitions. Word has length 73 [2021-11-22 19:19:31,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:31,494 INFO L470 AbstractCegarLoop]: Abstraction has 1092 states and 1342 transitions. [2021-11-22 19:19:31,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:31,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1342 transitions. [2021-11-22 19:19:31,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-22 19:19:31,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:31,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:31,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-22 19:19:31,496 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:31,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:31,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1541765356, now seen corresponding path program 1 times [2021-11-22 19:19:31,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:31,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166908051] [2021-11-22 19:19:31,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:31,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:31,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:31,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:31,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166908051] [2021-11-22 19:19:31,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166908051] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:31,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:31,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-22 19:19:31,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54551480] [2021-11-22 19:19:31,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:31,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 19:19:31,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:31,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 19:19:31,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-22 19:19:31,722 INFO L87 Difference]: Start difference. First operand 1092 states and 1342 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:32,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:32,298 INFO L93 Difference]: Finished difference Result 2170 states and 2678 transitions. [2021-11-22 19:19:32,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 19:19:32,298 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2021-11-22 19:19:32,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:32,302 INFO L225 Difference]: With dead ends: 2170 [2021-11-22 19:19:32,302 INFO L226 Difference]: Without dead ends: 1560 [2021-11-22 19:19:32,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2021-11-22 19:19:32,303 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 954 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 1767 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:32,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 1767 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 19:19:32,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2021-11-22 19:19:32,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1139. [2021-11-22 19:19:32,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 1122 states have (on average 1.2468805704099821) internal successors, (1399), 1138 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:32,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1399 transitions. [2021-11-22 19:19:32,340 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1399 transitions. Word has length 73 [2021-11-22 19:19:32,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:32,340 INFO L470 AbstractCegarLoop]: Abstraction has 1139 states and 1399 transitions. [2021-11-22 19:19:32,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:32,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1399 transitions. [2021-11-22 19:19:32,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-22 19:19:32,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:32,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:32,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-22 19:19:32,342 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:32,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:32,343 INFO L85 PathProgramCache]: Analyzing trace with hash -861706986, now seen corresponding path program 1 times [2021-11-22 19:19:32,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:32,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12175868] [2021-11-22 19:19:32,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:32,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:32,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:32,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:32,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12175868] [2021-11-22 19:19:32,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12175868] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:32,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:32,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 19:19:32,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643813250] [2021-11-22 19:19:32,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:32,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 19:19:32,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:32,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 19:19:32,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-22 19:19:32,498 INFO L87 Difference]: Start difference. First operand 1139 states and 1399 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:32,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:32,758 INFO L93 Difference]: Finished difference Result 2924 states and 3559 transitions. [2021-11-22 19:19:32,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 19:19:32,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2021-11-22 19:19:32,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:32,763 INFO L225 Difference]: With dead ends: 2924 [2021-11-22 19:19:32,763 INFO L226 Difference]: Without dead ends: 1874 [2021-11-22 19:19:32,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-22 19:19:32,765 INFO L933 BasicCegarLoop]: 482 mSDtfsCounter, 490 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:32,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [490 Valid, 1144 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 19:19:32,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2021-11-22 19:19:32,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1139. [2021-11-22 19:19:32,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 1122 states have (on average 1.2254901960784315) internal successors, (1375), 1138 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:32,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1375 transitions. [2021-11-22 19:19:32,798 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1375 transitions. Word has length 73 [2021-11-22 19:19:32,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:32,798 INFO L470 AbstractCegarLoop]: Abstraction has 1139 states and 1375 transitions. [2021-11-22 19:19:32,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:32,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1375 transitions. [2021-11-22 19:19:32,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-22 19:19:32,800 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:32,800 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:32,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-22 19:19:32,800 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:32,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:32,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1666159029, now seen corresponding path program 1 times [2021-11-22 19:19:32,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:32,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190418488] [2021-11-22 19:19:32,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:32,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:33,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:33,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:33,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190418488] [2021-11-22 19:19:33,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190418488] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:33,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:33,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-22 19:19:33,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142408905] [2021-11-22 19:19:33,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:33,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 19:19:33,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:33,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 19:19:33,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-22 19:19:33,317 INFO L87 Difference]: Start difference. First operand 1139 states and 1375 transitions. Second operand has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:33,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:33,838 INFO L93 Difference]: Finished difference Result 1864 states and 2233 transitions. [2021-11-22 19:19:33,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-22 19:19:33,839 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-22 19:19:33,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:33,841 INFO L225 Difference]: With dead ends: 1864 [2021-11-22 19:19:33,841 INFO L226 Difference]: Without dead ends: 930 [2021-11-22 19:19:33,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=229, Invalid=527, Unknown=0, NotChecked=0, Total=756 [2021-11-22 19:19:33,843 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 2202 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2202 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:33,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2202 Valid, 1038 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 19:19:33,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2021-11-22 19:19:33,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 780. [2021-11-22 19:19:33,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 763 states have (on average 1.2241153342070774) internal successors, (934), 779 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:33,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 934 transitions. [2021-11-22 19:19:33,865 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 934 transitions. Word has length 74 [2021-11-22 19:19:33,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:33,865 INFO L470 AbstractCegarLoop]: Abstraction has 780 states and 934 transitions. [2021-11-22 19:19:33,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:33,865 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 934 transitions. [2021-11-22 19:19:33,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-22 19:19:33,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:33,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:33,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-22 19:19:33,866 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:33,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:33,867 INFO L85 PathProgramCache]: Analyzing trace with hash 89602904, now seen corresponding path program 1 times [2021-11-22 19:19:33,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:33,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484647020] [2021-11-22 19:19:33,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:33,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:34,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:34,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:34,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484647020] [2021-11-22 19:19:34,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484647020] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:34,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:34,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 19:19:34,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916042887] [2021-11-22 19:19:34,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:34,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 19:19:34,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:34,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 19:19:34,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 19:19:34,042 INFO L87 Difference]: Start difference. First operand 780 states and 934 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:34,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:34,196 INFO L93 Difference]: Finished difference Result 1804 states and 2152 transitions. [2021-11-22 19:19:34,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 19:19:34,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-22 19:19:34,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:34,199 INFO L225 Difference]: With dead ends: 1804 [2021-11-22 19:19:34,199 INFO L226 Difference]: Without dead ends: 1023 [2021-11-22 19:19:34,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-22 19:19:34,200 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 171 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:34,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 1937 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 19:19:34,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2021-11-22 19:19:34,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 774. [2021-11-22 19:19:34,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 757 states have (on average 1.2166446499339498) internal successors, (921), 773 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:34,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 921 transitions. [2021-11-22 19:19:34,227 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 921 transitions. Word has length 81 [2021-11-22 19:19:34,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:34,227 INFO L470 AbstractCegarLoop]: Abstraction has 774 states and 921 transitions. [2021-11-22 19:19:34,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:34,227 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 921 transitions. [2021-11-22 19:19:34,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-22 19:19:34,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:34,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:34,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-22 19:19:34,229 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:34,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:34,229 INFO L85 PathProgramCache]: Analyzing trace with hash 894500952, now seen corresponding path program 1 times [2021-11-22 19:19:34,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:34,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007617396] [2021-11-22 19:19:34,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:34,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:34,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:34,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:34,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007617396] [2021-11-22 19:19:34,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007617396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:34,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:34,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 19:19:34,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426965674] [2021-11-22 19:19:34,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:34,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 19:19:34,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:34,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 19:19:34,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 19:19:34,304 INFO L87 Difference]: Start difference. First operand 774 states and 921 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:34,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:34,374 INFO L93 Difference]: Finished difference Result 1599 states and 1897 transitions. [2021-11-22 19:19:34,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 19:19:34,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-22 19:19:34,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:34,376 INFO L225 Difference]: With dead ends: 1599 [2021-11-22 19:19:34,376 INFO L226 Difference]: Without dead ends: 809 [2021-11-22 19:19:34,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 19:19:34,378 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 29 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:34,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 835 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 19:19:34,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2021-11-22 19:19:34,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 761. [2021-11-22 19:19:34,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 744 states have (on average 1.2096774193548387) internal successors, (900), 760 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:34,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 900 transitions. [2021-11-22 19:19:34,402 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 900 transitions. Word has length 85 [2021-11-22 19:19:34,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:34,402 INFO L470 AbstractCegarLoop]: Abstraction has 761 states and 900 transitions. [2021-11-22 19:19:34,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:34,402 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 900 transitions. [2021-11-22 19:19:34,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-22 19:19:34,403 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:34,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:34,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-22 19:19:34,403 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:34,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:34,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1289398312, now seen corresponding path program 1 times [2021-11-22 19:19:34,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:34,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520806445] [2021-11-22 19:19:34,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:34,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:34,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:34,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:34,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520806445] [2021-11-22 19:19:34,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520806445] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:34,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:34,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 19:19:34,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550899648] [2021-11-22 19:19:34,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:34,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 19:19:34,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:34,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 19:19:34,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 19:19:34,488 INFO L87 Difference]: Start difference. First operand 761 states and 900 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:34,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:34,549 INFO L93 Difference]: Finished difference Result 1437 states and 1689 transitions. [2021-11-22 19:19:34,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 19:19:34,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-22 19:19:34,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:34,551 INFO L225 Difference]: With dead ends: 1437 [2021-11-22 19:19:34,551 INFO L226 Difference]: Without dead ends: 693 [2021-11-22 19:19:34,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 19:19:34,552 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 121 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:34,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 813 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 19:19:34,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2021-11-22 19:19:34,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 613. [2021-11-22 19:19:34,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 596 states have (on average 1.1996644295302012) internal successors, (715), 612 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:34,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 715 transitions. [2021-11-22 19:19:34,574 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 715 transitions. Word has length 85 [2021-11-22 19:19:34,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:34,574 INFO L470 AbstractCegarLoop]: Abstraction has 613 states and 715 transitions. [2021-11-22 19:19:34,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:34,575 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 715 transitions. [2021-11-22 19:19:34,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-22 19:19:34,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:34,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:34,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-22 19:19:34,576 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:34,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:34,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1160201818, now seen corresponding path program 1 times [2021-11-22 19:19:34,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:34,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814437640] [2021-11-22 19:19:34,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:34,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:35,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:35,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:35,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814437640] [2021-11-22 19:19:35,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814437640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:35,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:35,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-22 19:19:35,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144242406] [2021-11-22 19:19:35,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:35,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-22 19:19:35,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:35,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-22 19:19:35,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-11-22 19:19:35,119 INFO L87 Difference]: Start difference. First operand 613 states and 715 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:35,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:35,829 INFO L93 Difference]: Finished difference Result 1085 states and 1265 transitions. [2021-11-22 19:19:35,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-22 19:19:35,831 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-22 19:19:35,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:35,832 INFO L225 Difference]: With dead ends: 1085 [2021-11-22 19:19:35,832 INFO L226 Difference]: Without dead ends: 713 [2021-11-22 19:19:35,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2021-11-22 19:19:35,833 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 1788 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1788 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:35,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1788 Valid, 1277 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 19:19:35,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-11-22 19:19:35,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 549. [2021-11-22 19:19:35,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 532 states have (on average 1.1917293233082706) internal successors, (634), 548 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:35,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 634 transitions. [2021-11-22 19:19:35,856 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 634 transitions. Word has length 85 [2021-11-22 19:19:35,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:35,856 INFO L470 AbstractCegarLoop]: Abstraction has 549 states and 634 transitions. [2021-11-22 19:19:35,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:35,856 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 634 transitions. [2021-11-22 19:19:35,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-22 19:19:35,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:35,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:35,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-22 19:19:35,857 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:35,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:35,858 INFO L85 PathProgramCache]: Analyzing trace with hash -272808364, now seen corresponding path program 1 times [2021-11-22 19:19:35,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:35,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256546042] [2021-11-22 19:19:35,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:35,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:36,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:36,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:36,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256546042] [2021-11-22 19:19:36,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256546042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:36,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:36,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 19:19:36,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675497295] [2021-11-22 19:19:36,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:36,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 19:19:36,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:36,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 19:19:36,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-22 19:19:36,065 INFO L87 Difference]: Start difference. First operand 549 states and 634 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:36,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:36,507 INFO L93 Difference]: Finished difference Result 1229 states and 1426 transitions. [2021-11-22 19:19:36,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 19:19:36,507 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-22 19:19:36,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:36,510 INFO L225 Difference]: With dead ends: 1229 [2021-11-22 19:19:36,510 INFO L226 Difference]: Without dead ends: 988 [2021-11-22 19:19:36,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2021-11-22 19:19:36,511 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 766 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:36,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 1954 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 19:19:36,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2021-11-22 19:19:36,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 654. [2021-11-22 19:19:36,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 637 states have (on average 1.1711145996860282) internal successors, (746), 653 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:36,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 746 transitions. [2021-11-22 19:19:36,536 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 746 transitions. Word has length 85 [2021-11-22 19:19:36,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:36,537 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 746 transitions. [2021-11-22 19:19:36,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:36,537 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 746 transitions. [2021-11-22 19:19:36,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-22 19:19:36,538 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:36,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:36,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-22 19:19:36,538 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:36,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:36,539 INFO L85 PathProgramCache]: Analyzing trace with hash -345194922, now seen corresponding path program 1 times [2021-11-22 19:19:36,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:36,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753042865] [2021-11-22 19:19:36,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:36,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:36,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:36,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:36,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753042865] [2021-11-22 19:19:36,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753042865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:36,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:36,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-22 19:19:36,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544659186] [2021-11-22 19:19:36,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:36,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-22 19:19:36,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:36,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-22 19:19:36,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-22 19:19:36,875 INFO L87 Difference]: Start difference. First operand 654 states and 746 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:37,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:37,638 INFO L93 Difference]: Finished difference Result 1890 states and 2164 transitions. [2021-11-22 19:19:37,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 19:19:37,639 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-22 19:19:37,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:37,642 INFO L225 Difference]: With dead ends: 1890 [2021-11-22 19:19:37,642 INFO L226 Difference]: Without dead ends: 1438 [2021-11-22 19:19:37,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=211, Invalid=491, Unknown=0, NotChecked=0, Total=702 [2021-11-22 19:19:37,643 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 1922 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:37,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1922 Valid, 2139 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-22 19:19:37,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2021-11-22 19:19:37,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 892. [2021-11-22 19:19:37,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 875 states have (on average 1.177142857142857) internal successors, (1030), 891 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:37,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1030 transitions. [2021-11-22 19:19:37,675 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1030 transitions. Word has length 85 [2021-11-22 19:19:37,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:37,675 INFO L470 AbstractCegarLoop]: Abstraction has 892 states and 1030 transitions. [2021-11-22 19:19:37,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:37,675 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1030 transitions. [2021-11-22 19:19:37,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-22 19:19:37,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:37,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:37,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-22 19:19:37,677 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:37,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:37,677 INFO L85 PathProgramCache]: Analyzing trace with hash -399587820, now seen corresponding path program 1 times [2021-11-22 19:19:37,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:37,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36306313] [2021-11-22 19:19:37,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:37,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:38,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:38,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:38,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36306313] [2021-11-22 19:19:38,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36306313] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:38,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:38,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-22 19:19:38,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669366710] [2021-11-22 19:19:38,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:38,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-22 19:19:38,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:38,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-22 19:19:38,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2021-11-22 19:19:38,312 INFO L87 Difference]: Start difference. First operand 892 states and 1030 transitions. Second operand has 18 states, 18 states have (on average 4.722222222222222) internal successors, (85), 18 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:39,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:39,447 INFO L93 Difference]: Finished difference Result 1297 states and 1491 transitions. [2021-11-22 19:19:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-22 19:19:39,448 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.722222222222222) internal successors, (85), 18 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-22 19:19:39,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:39,451 INFO L225 Difference]: With dead ends: 1297 [2021-11-22 19:19:39,451 INFO L226 Difference]: Without dead ends: 1056 [2021-11-22 19:19:39,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=340, Invalid=782, Unknown=0, NotChecked=0, Total=1122 [2021-11-22 19:19:39,452 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 3553 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3553 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:39,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3553 Valid, 1877 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-22 19:19:39,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2021-11-22 19:19:39,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 948. [2021-11-22 19:19:39,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 931 states have (on average 1.1707841031149302) internal successors, (1090), 947 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:39,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1090 transitions. [2021-11-22 19:19:39,485 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1090 transitions. Word has length 85 [2021-11-22 19:19:39,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:39,486 INFO L470 AbstractCegarLoop]: Abstraction has 948 states and 1090 transitions. [2021-11-22 19:19:39,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.722222222222222) internal successors, (85), 18 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:39,486 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1090 transitions. [2021-11-22 19:19:39,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-22 19:19:39,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:39,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:39,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-22 19:19:39,487 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:39,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:39,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1499307213, now seen corresponding path program 1 times [2021-11-22 19:19:39,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:39,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312208792] [2021-11-22 19:19:39,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:39,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:39,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:39,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:39,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312208792] [2021-11-22 19:19:39,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312208792] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:39,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:39,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-22 19:19:39,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490019257] [2021-11-22 19:19:39,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:39,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-22 19:19:39,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:39,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-22 19:19:39,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-11-22 19:19:39,991 INFO L87 Difference]: Start difference. First operand 948 states and 1090 transitions. Second operand has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 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) [2021-11-22 19:19:40,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:40,856 INFO L93 Difference]: Finished difference Result 1142 states and 1270 transitions. [2021-11-22 19:19:40,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 19:19:40,857 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 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 86 [2021-11-22 19:19:40,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:40,859 INFO L225 Difference]: With dead ends: 1142 [2021-11-22 19:19:40,859 INFO L226 Difference]: Without dead ends: 1140 [2021-11-22 19:19:40,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=187, Invalid=515, Unknown=0, NotChecked=0, Total=702 [2021-11-22 19:19:40,862 INFO L933 BasicCegarLoop]: 565 mSDtfsCounter, 1527 mSDsluCounter, 3177 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 3742 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:40,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1527 Valid, 3742 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-22 19:19:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2021-11-22 19:19:40,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 946. [2021-11-22 19:19:40,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 930 states have (on average 1.1698924731182796) internal successors, (1088), 945 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:40,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1088 transitions. [2021-11-22 19:19:40,898 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1088 transitions. Word has length 86 [2021-11-22 19:19:40,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:40,898 INFO L470 AbstractCegarLoop]: Abstraction has 946 states and 1088 transitions. [2021-11-22 19:19:40,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 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) [2021-11-22 19:19:40,899 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1088 transitions. [2021-11-22 19:19:40,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-22 19:19:40,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:40,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:40,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-22 19:19:40,900 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:40,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:40,900 INFO L85 PathProgramCache]: Analyzing trace with hash 941267087, now seen corresponding path program 1 times [2021-11-22 19:19:40,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:40,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340590745] [2021-11-22 19:19:40,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:40,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:41,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:41,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:41,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340590745] [2021-11-22 19:19:41,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340590745] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:41,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:41,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-22 19:19:41,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415145792] [2021-11-22 19:19:41,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:41,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 19:19:41,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:41,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 19:19:41,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-22 19:19:41,030 INFO L87 Difference]: Start difference. First operand 946 states and 1088 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:41,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:41,252 INFO L93 Difference]: Finished difference Result 1386 states and 1623 transitions. [2021-11-22 19:19:41,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 19:19:41,252 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-22 19:19:41,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:41,256 INFO L225 Difference]: With dead ends: 1386 [2021-11-22 19:19:41,256 INFO L226 Difference]: Without dead ends: 1380 [2021-11-22 19:19:41,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-22 19:19:41,257 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 319 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:41,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 1663 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 19:19:41,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2021-11-22 19:19:41,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1016. [2021-11-22 19:19:41,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 1000 states have (on average 1.158) internal successors, (1158), 1015 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:41,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1158 transitions. [2021-11-22 19:19:41,297 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1158 transitions. Word has length 87 [2021-11-22 19:19:41,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:41,297 INFO L470 AbstractCegarLoop]: Abstraction has 1016 states and 1158 transitions. [2021-11-22 19:19:41,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:41,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1158 transitions. [2021-11-22 19:19:41,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-22 19:19:41,298 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:41,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:41,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-22 19:19:41,299 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:41,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:41,299 INFO L85 PathProgramCache]: Analyzing trace with hash 131920461, now seen corresponding path program 1 times [2021-11-22 19:19:41,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:41,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104572405] [2021-11-22 19:19:41,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:41,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:41,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:41,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:41,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104572405] [2021-11-22 19:19:41,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104572405] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:41,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:41,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-22 19:19:41,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312662633] [2021-11-22 19:19:41,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:41,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 19:19:41,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:41,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 19:19:41,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-22 19:19:41,529 INFO L87 Difference]: Start difference. First operand 1016 states and 1158 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:42,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:42,142 INFO L93 Difference]: Finished difference Result 1595 states and 1827 transitions. [2021-11-22 19:19:42,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-22 19:19:42,142 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-22 19:19:42,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:42,146 INFO L225 Difference]: With dead ends: 1595 [2021-11-22 19:19:42,146 INFO L226 Difference]: Without dead ends: 1352 [2021-11-22 19:19:42,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2021-11-22 19:19:42,147 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 665 mSDsluCounter, 1623 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:42,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [665 Valid, 1864 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 19:19:42,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2021-11-22 19:19:42,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 992. [2021-11-22 19:19:42,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 976 states have (on average 1.153688524590164) internal successors, (1126), 991 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:42,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1126 transitions. [2021-11-22 19:19:42,183 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1126 transitions. Word has length 87 [2021-11-22 19:19:42,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:42,184 INFO L470 AbstractCegarLoop]: Abstraction has 992 states and 1126 transitions. [2021-11-22 19:19:42,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:42,184 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1126 transitions. [2021-11-22 19:19:42,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-22 19:19:42,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:42,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:42,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-22 19:19:42,185 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:42,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:42,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1444052467, now seen corresponding path program 1 times [2021-11-22 19:19:42,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:42,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501529559] [2021-11-22 19:19:42,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:42,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:42,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:42,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:42,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501529559] [2021-11-22 19:19:42,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501529559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:42,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:42,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-11-22 19:19:42,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585660495] [2021-11-22 19:19:42,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:42,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 19:19:42,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:42,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 19:19:42,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2021-11-22 19:19:42,773 INFO L87 Difference]: Start difference. First operand 992 states and 1126 transitions. Second operand has 23 states, 23 states have (on average 3.782608695652174) internal successors, (87), 23 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:47,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:47,067 INFO L93 Difference]: Finished difference Result 1721 states and 1917 transitions. [2021-11-22 19:19:47,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-22 19:19:47,068 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.782608695652174) internal successors, (87), 23 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-22 19:19:47,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:47,072 INFO L225 Difference]: With dead ends: 1721 [2021-11-22 19:19:47,072 INFO L226 Difference]: Without dead ends: 1717 [2021-11-22 19:19:47,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1904 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1301, Invalid=5341, Unknown=0, NotChecked=0, Total=6642 [2021-11-22 19:19:47,075 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 3100 mSDsluCounter, 4424 mSDsCounter, 0 mSdLazyCounter, 2616 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3100 SdHoareTripleChecker+Valid, 4886 SdHoareTripleChecker+Invalid, 2874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 2616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:47,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3100 Valid, 4886 Invalid, 2874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 2616 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-22 19:19:47,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2021-11-22 19:19:47,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 975. [2021-11-22 19:19:47,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 959 states have (on average 1.1543274244004171) internal successors, (1107), 974 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:47,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1107 transitions. [2021-11-22 19:19:47,115 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1107 transitions. Word has length 87 [2021-11-22 19:19:47,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:47,115 INFO L470 AbstractCegarLoop]: Abstraction has 975 states and 1107 transitions. [2021-11-22 19:19:47,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.782608695652174) internal successors, (87), 23 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:47,115 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1107 transitions. [2021-11-22 19:19:47,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-22 19:19:47,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:47,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:47,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-22 19:19:47,116 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:47,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:47,117 INFO L85 PathProgramCache]: Analyzing trace with hash 2020324175, now seen corresponding path program 1 times [2021-11-22 19:19:47,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:47,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711096040] [2021-11-22 19:19:47,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:47,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:48,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:48,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:48,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711096040] [2021-11-22 19:19:48,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711096040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:48,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:48,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-11-22 19:19:48,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241695306] [2021-11-22 19:19:48,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:48,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-22 19:19:48,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:48,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-22 19:19:48,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-11-22 19:19:48,037 INFO L87 Difference]: Start difference. First operand 975 states and 1107 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:51,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:51,876 INFO L93 Difference]: Finished difference Result 1556 states and 1717 transitions. [2021-11-22 19:19:51,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-22 19:19:51,877 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-11-22 19:19:51,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:51,880 INFO L225 Difference]: With dead ends: 1556 [2021-11-22 19:19:51,880 INFO L226 Difference]: Without dead ends: 1554 [2021-11-22 19:19:51,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1255 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1727, Invalid=5079, Unknown=0, NotChecked=0, Total=6806 [2021-11-22 19:19:51,883 INFO L933 BasicCegarLoop]: 638 mSDtfsCounter, 3269 mSDsluCounter, 6716 mSDsCounter, 0 mSdLazyCounter, 2649 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3269 SdHoareTripleChecker+Valid, 7354 SdHoareTripleChecker+Invalid, 2935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 2649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:51,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3269 Valid, 7354 Invalid, 2935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 2649 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-22 19:19:51,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2021-11-22 19:19:51,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 973. [2021-11-22 19:19:51,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 958 states have (on average 1.153444676409186) internal successors, (1105), 972 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:51,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1105 transitions. [2021-11-22 19:19:51,925 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1105 transitions. Word has length 88 [2021-11-22 19:19:51,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:51,925 INFO L470 AbstractCegarLoop]: Abstraction has 973 states and 1105 transitions. [2021-11-22 19:19:51,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:51,925 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1105 transitions. [2021-11-22 19:19:51,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-22 19:19:51,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:51,926 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:51,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-22 19:19:51,926 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:51,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:51,928 INFO L85 PathProgramCache]: Analyzing trace with hash -404556664, now seen corresponding path program 1 times [2021-11-22 19:19:51,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:51,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667986854] [2021-11-22 19:19:51,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:51,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:52,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:52,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:52,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667986854] [2021-11-22 19:19:52,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667986854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:52,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:52,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 19:19:52,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38065210] [2021-11-22 19:19:52,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:52,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 19:19:52,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:52,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 19:19:52,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 19:19:52,037 INFO L87 Difference]: Start difference. First operand 973 states and 1105 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:52,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:52,191 INFO L93 Difference]: Finished difference Result 1323 states and 1501 transitions. [2021-11-22 19:19:52,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 19:19:52,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-11-22 19:19:52,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:52,194 INFO L225 Difference]: With dead ends: 1323 [2021-11-22 19:19:52,195 INFO L226 Difference]: Without dead ends: 1319 [2021-11-22 19:19:52,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-22 19:19:52,195 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 174 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:52,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 1238 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 19:19:52,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2021-11-22 19:19:52,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1001. [2021-11-22 19:19:52,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 986 states have (on average 1.1490872210953347) internal successors, (1133), 1000 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:52,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1133 transitions. [2021-11-22 19:19:52,237 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1133 transitions. Word has length 94 [2021-11-22 19:19:52,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:52,237 INFO L470 AbstractCegarLoop]: Abstraction has 1001 states and 1133 transitions. [2021-11-22 19:19:52,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:52,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1133 transitions. [2021-11-22 19:19:52,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-22 19:19:52,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:52,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:52,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-22 19:19:52,239 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:52,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:52,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1357559296, now seen corresponding path program 1 times [2021-11-22 19:19:52,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:52,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900239585] [2021-11-22 19:19:52,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:52,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:52,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:52,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:52,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900239585] [2021-11-22 19:19:52,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900239585] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:52,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:52,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-22 19:19:52,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584955488] [2021-11-22 19:19:52,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:52,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 19:19:52,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:52,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 19:19:52,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-22 19:19:52,404 INFO L87 Difference]: Start difference. First operand 1001 states and 1133 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:52,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:52,828 INFO L93 Difference]: Finished difference Result 1373 states and 1533 transitions. [2021-11-22 19:19:52,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 19:19:52,829 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 [2021-11-22 19:19:52,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:52,831 INFO L225 Difference]: With dead ends: 1373 [2021-11-22 19:19:52,831 INFO L226 Difference]: Without dead ends: 1005 [2021-11-22 19:19:52,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-11-22 19:19:52,832 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 601 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:52,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [601 Valid, 1456 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 19:19:52,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2021-11-22 19:19:52,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 770. [2021-11-22 19:19:52,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 755 states have (on average 1.1403973509933776) internal successors, (861), 769 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:52,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 861 transitions. [2021-11-22 19:19:52,883 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 861 transitions. Word has length 98 [2021-11-22 19:19:52,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:52,883 INFO L470 AbstractCegarLoop]: Abstraction has 770 states and 861 transitions. [2021-11-22 19:19:52,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:52,883 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 861 transitions. [2021-11-22 19:19:52,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-22 19:19:52,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:52,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:52,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-22 19:19:52,884 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:52,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:52,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1528610440, now seen corresponding path program 1 times [2021-11-22 19:19:52,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:52,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193639850] [2021-11-22 19:19:52,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:52,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:52,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:52,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:52,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193639850] [2021-11-22 19:19:52,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193639850] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:52,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:52,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 19:19:52,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574195256] [2021-11-22 19:19:52,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:52,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 19:19:52,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:52,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 19:19:52,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 19:19:52,983 INFO L87 Difference]: Start difference. First operand 770 states and 861 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:53,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:53,024 INFO L93 Difference]: Finished difference Result 1033 states and 1146 transitions. [2021-11-22 19:19:53,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 19:19:53,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 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 [2021-11-22 19:19:53,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:53,031 INFO L225 Difference]: With dead ends: 1033 [2021-11-22 19:19:53,031 INFO L226 Difference]: Without dead ends: 812 [2021-11-22 19:19:53,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 19:19:53,033 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 73 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:53,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 871 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 19:19:53,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2021-11-22 19:19:53,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 730. [2021-11-22 19:19:53,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 715 states have (on average 1.1202797202797203) internal successors, (801), 729 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 801 transitions. [2021-11-22 19:19:53,068 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 801 transitions. Word has length 98 [2021-11-22 19:19:53,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:53,068 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 801 transitions. [2021-11-22 19:19:53,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:53,068 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 801 transitions. [2021-11-22 19:19:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-22 19:19:53,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:53,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:53,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-22 19:19:53,069 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:53,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:53,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1528621363, now seen corresponding path program 1 times [2021-11-22 19:19:53,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:53,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138179989] [2021-11-22 19:19:53,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:53,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:53,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:53,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:53,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138179989] [2021-11-22 19:19:53,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138179989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:53,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:53,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-22 19:19:53,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582467262] [2021-11-22 19:19:53,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:53,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-22 19:19:53,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:53,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-22 19:19:53,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-11-22 19:19:53,637 INFO L87 Difference]: Start difference. First operand 730 states and 801 transitions. Second operand has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:55,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:55,071 INFO L93 Difference]: Finished difference Result 1113 states and 1194 transitions. [2021-11-22 19:19:55,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-22 19:19:55,072 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 0 states have call successors, (0), 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 [2021-11-22 19:19:55,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:55,073 INFO L225 Difference]: With dead ends: 1113 [2021-11-22 19:19:55,074 INFO L226 Difference]: Without dead ends: 1109 [2021-11-22 19:19:55,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=395, Invalid=1245, Unknown=0, NotChecked=0, Total=1640 [2021-11-22 19:19:55,075 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 2112 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2112 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:55,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2112 Valid, 2845 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-22 19:19:55,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-11-22 19:19:55,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 839. [2021-11-22 19:19:55,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 824 states have (on average 1.1152912621359223) internal successors, (919), 838 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:55,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 919 transitions. [2021-11-22 19:19:55,116 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 919 transitions. Word has length 98 [2021-11-22 19:19:55,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:55,116 INFO L470 AbstractCegarLoop]: Abstraction has 839 states and 919 transitions. [2021-11-22 19:19:55,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:55,117 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 919 transitions. [2021-11-22 19:19:55,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-22 19:19:55,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:55,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:55,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-22 19:19:55,121 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:55,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:55,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1501555761, now seen corresponding path program 1 times [2021-11-22 19:19:55,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:55,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567204547] [2021-11-22 19:19:55,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:55,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:55,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:55,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:55,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567204547] [2021-11-22 19:19:55,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567204547] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:55,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:55,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-22 19:19:55,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783659890] [2021-11-22 19:19:55,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:55,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-22 19:19:55,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:55,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-22 19:19:55,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-11-22 19:19:55,484 INFO L87 Difference]: Start difference. First operand 839 states and 919 transitions. Second operand has 15 states, 15 states have (on average 6.533333333333333) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:56,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:56,394 INFO L93 Difference]: Finished difference Result 1276 states and 1382 transitions. [2021-11-22 19:19:56,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-22 19:19:56,395 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.533333333333333) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 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 [2021-11-22 19:19:56,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:56,396 INFO L225 Difference]: With dead ends: 1276 [2021-11-22 19:19:56,396 INFO L226 Difference]: Without dead ends: 876 [2021-11-22 19:19:56,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2021-11-22 19:19:56,397 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1957 mSDsluCounter, 2148 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1957 SdHoareTripleChecker+Valid, 2564 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:56,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1957 Valid, 2564 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-22 19:19:56,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2021-11-22 19:19:56,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 730. [2021-11-22 19:19:56,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 715 states have (on average 1.1118881118881119) internal successors, (795), 729 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:56,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 795 transitions. [2021-11-22 19:19:56,433 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 795 transitions. Word has length 98 [2021-11-22 19:19:56,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:56,433 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 795 transitions. [2021-11-22 19:19:56,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.533333333333333) internal successors, (98), 15 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:56,433 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 795 transitions. [2021-11-22 19:19:56,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-22 19:19:56,434 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:56,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:56,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-22 19:19:56,434 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:56,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:56,434 INFO L85 PathProgramCache]: Analyzing trace with hash 426716941, now seen corresponding path program 1 times [2021-11-22 19:19:56,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:56,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851870215] [2021-11-22 19:19:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:56,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:56,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:56,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:56,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851870215] [2021-11-22 19:19:56,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851870215] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:56,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:56,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 19:19:56,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542703346] [2021-11-22 19:19:56,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:56,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 19:19:56,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:56,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 19:19:56,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-22 19:19:56,622 INFO L87 Difference]: Start difference. First operand 730 states and 795 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:56,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:56,976 INFO L93 Difference]: Finished difference Result 1065 states and 1154 transitions. [2021-11-22 19:19:56,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 19:19:56,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 [2021-11-22 19:19:56,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:56,978 INFO L225 Difference]: With dead ends: 1065 [2021-11-22 19:19:56,978 INFO L226 Difference]: Without dead ends: 893 [2021-11-22 19:19:56,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-22 19:19:56,979 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 608 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:56,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [608 Valid, 1540 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 19:19:56,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2021-11-22 19:19:57,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 718. [2021-11-22 19:19:57,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 703 states have (on average 1.1095305832147937) internal successors, (780), 717 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 780 transitions. [2021-11-22 19:19:57,029 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 780 transitions. Word has length 98 [2021-11-22 19:19:57,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:57,030 INFO L470 AbstractCegarLoop]: Abstraction has 718 states and 780 transitions. [2021-11-22 19:19:57,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:57,030 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 780 transitions. [2021-11-22 19:19:57,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-22 19:19:57,031 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:57,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:57,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-22 19:19:57,032 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:57,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:57,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1262226801, now seen corresponding path program 1 times [2021-11-22 19:19:57,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:57,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741520734] [2021-11-22 19:19:57,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:57,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:57,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:57,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:57,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741520734] [2021-11-22 19:19:57,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741520734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:57,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:57,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-22 19:19:57,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745860702] [2021-11-22 19:19:57,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:57,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-22 19:19:57,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:57,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-22 19:19:57,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-22 19:19:57,655 INFO L87 Difference]: Start difference. First operand 718 states and 780 transitions. Second operand has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:58,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:19:58,514 INFO L93 Difference]: Finished difference Result 826 states and 885 transitions. [2021-11-22 19:19:58,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 19:19:58,515 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 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 [2021-11-22 19:19:58,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:19:58,516 INFO L225 Difference]: With dead ends: 826 [2021-11-22 19:19:58,516 INFO L226 Difference]: Without dead ends: 822 [2021-11-22 19:19:58,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=280, Invalid=650, Unknown=0, NotChecked=0, Total=930 [2021-11-22 19:19:58,516 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 2256 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 19:19:58,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2256 Valid, 1440 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-22 19:19:58,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2021-11-22 19:19:58,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 716. [2021-11-22 19:19:58,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 702 states have (on average 1.106837606837607) internal successors, (777), 715 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:58,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 777 transitions. [2021-11-22 19:19:58,548 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 777 transitions. Word has length 98 [2021-11-22 19:19:58,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:19:58,549 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 777 transitions. [2021-11-22 19:19:58,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:19:58,549 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 777 transitions. [2021-11-22 19:19:58,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-22 19:19:58,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:19:58,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:19:58,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-22 19:19:58,550 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:19:58,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:19:58,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1904825697, now seen corresponding path program 1 times [2021-11-22 19:19:58,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:19:58,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865708420] [2021-11-22 19:19:58,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:19:58,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:19:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:19:59,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:19:59,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:19:59,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865708420] [2021-11-22 19:19:59,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865708420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:19:59,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:19:59,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-11-22 19:19:59,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53457464] [2021-11-22 19:19:59,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:19:59,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-22 19:19:59,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:19:59,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-22 19:19:59,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2021-11-22 19:19:59,300 INFO L87 Difference]: Start difference. First operand 716 states and 777 transitions. Second operand has 25 states, 25 states have (on average 4.0) internal successors, (100), 25 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:03,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:20:03,336 INFO L93 Difference]: Finished difference Result 1161 states and 1260 transitions. [2021-11-22 19:20:03,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-22 19:20:03,336 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.0) internal successors, (100), 25 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2021-11-22 19:20:03,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:20:03,338 INFO L225 Difference]: With dead ends: 1161 [2021-11-22 19:20:03,338 INFO L226 Difference]: Without dead ends: 1155 [2021-11-22 19:20:03,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2026 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1483, Invalid=6527, Unknown=0, NotChecked=0, Total=8010 [2021-11-22 19:20:03,340 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 4840 mSDsluCounter, 4552 mSDsCounter, 0 mSdLazyCounter, 2307 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4840 SdHoareTripleChecker+Valid, 4938 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-22 19:20:03,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4840 Valid, 4938 Invalid, 2857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2307 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-22 19:20:03,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2021-11-22 19:20:03,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 777. [2021-11-22 19:20:03,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 764 states have (on average 1.1086387434554974) internal successors, (847), 776 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:03,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 847 transitions. [2021-11-22 19:20:03,378 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 847 transitions. Word has length 100 [2021-11-22 19:20:03,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:20:03,378 INFO L470 AbstractCegarLoop]: Abstraction has 777 states and 847 transitions. [2021-11-22 19:20:03,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.0) internal successors, (100), 25 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:03,378 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 847 transitions. [2021-11-22 19:20:03,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-22 19:20:03,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:20:03,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:20:03,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-22 19:20:03,381 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:20:03,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:20:03,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2102697280, now seen corresponding path program 1 times [2021-11-22 19:20:03,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:20:03,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479015349] [2021-11-22 19:20:03,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:20:03,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:20:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:20:03,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:20:03,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:20:03,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479015349] [2021-11-22 19:20:03,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479015349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:20:03,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:20:03,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-22 19:20:03,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071488232] [2021-11-22 19:20:03,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:20:03,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 19:20:03,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:20:03,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 19:20:03,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-22 19:20:03,733 INFO L87 Difference]: Start difference. First operand 777 states and 847 transitions. Second operand has 12 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:04,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:20:04,384 INFO L93 Difference]: Finished difference Result 1335 states and 1448 transitions. [2021-11-22 19:20:04,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-22 19:20:04,385 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-11-22 19:20:04,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:20:04,386 INFO L225 Difference]: With dead ends: 1335 [2021-11-22 19:20:04,386 INFO L226 Difference]: Without dead ends: 1195 [2021-11-22 19:20:04,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=419, Unknown=0, NotChecked=0, Total=600 [2021-11-22 19:20:04,387 INFO L933 BasicCegarLoop]: 456 mSDtfsCounter, 1218 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 19:20:04,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1218 Valid, 2730 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 19:20:04,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2021-11-22 19:20:04,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 788. [2021-11-22 19:20:04,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 775 states have (on average 1.1083870967741936) internal successors, (859), 787 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:04,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 859 transitions. [2021-11-22 19:20:04,426 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 859 transitions. Word has length 111 [2021-11-22 19:20:04,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:20:04,426 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 859 transitions. [2021-11-22 19:20:04,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:04,426 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 859 transitions. [2021-11-22 19:20:04,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-22 19:20:04,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:20:04,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:20:04,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-22 19:20:04,428 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:20:04,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:20:04,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1512211646, now seen corresponding path program 1 times [2021-11-22 19:20:04,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:20:04,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684173769] [2021-11-22 19:20:04,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:20:04,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:20:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:20:04,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:20:04,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:20:04,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684173769] [2021-11-22 19:20:04,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684173769] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:20:04,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:20:04,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 19:20:04,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562157303] [2021-11-22 19:20:04,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:20:04,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 19:20:04,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:20:04,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 19:20:04,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 19:20:04,556 INFO L87 Difference]: Start difference. First operand 788 states and 859 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:04,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:20:04,729 INFO L93 Difference]: Finished difference Result 1346 states and 1476 transitions. [2021-11-22 19:20:04,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 19:20:04,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-11-22 19:20:04,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:20:04,731 INFO L225 Difference]: With dead ends: 1346 [2021-11-22 19:20:04,731 INFO L226 Difference]: Without dead ends: 780 [2021-11-22 19:20:04,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 19:20:04,732 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 35 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 19:20:04,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 656 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 19:20:04,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2021-11-22 19:20:04,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 780. [2021-11-22 19:20:04,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 767 states have (on average 1.0873533246414602) internal successors, (834), 779 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:04,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 834 transitions. [2021-11-22 19:20:04,769 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 834 transitions. Word has length 111 [2021-11-22 19:20:04,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:20:04,769 INFO L470 AbstractCegarLoop]: Abstraction has 780 states and 834 transitions. [2021-11-22 19:20:04,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:04,770 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 834 transitions. [2021-11-22 19:20:04,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-22 19:20:04,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:20:04,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:20:04,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-22 19:20:04,771 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:20:04,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:20:04,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1929761287, now seen corresponding path program 1 times [2021-11-22 19:20:04,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:20:04,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608200043] [2021-11-22 19:20:04,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:20:04,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:20:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:20:04,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:20:04,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:20:04,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608200043] [2021-11-22 19:20:04,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608200043] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:20:04,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:20:04,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-22 19:20:04,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886460914] [2021-11-22 19:20:04,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:20:04,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-22 19:20:04,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:20:04,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-22 19:20:04,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-22 19:20:04,931 INFO L87 Difference]: Start difference. First operand 780 states and 834 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:05,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:20:05,405 INFO L93 Difference]: Finished difference Result 986 states and 1060 transitions. [2021-11-22 19:20:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-22 19:20:05,405 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-22 19:20:05,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:20:05,406 INFO L225 Difference]: With dead ends: 986 [2021-11-22 19:20:05,406 INFO L226 Difference]: Without dead ends: 980 [2021-11-22 19:20:05,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2021-11-22 19:20:05,407 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 586 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 2190 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 19:20:05,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [586 Valid, 2190 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 19:20:05,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2021-11-22 19:20:05,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 782. [2021-11-22 19:20:05,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 770 states have (on average 1.0818181818181818) internal successors, (833), 781 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:05,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 833 transitions. [2021-11-22 19:20:05,457 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 833 transitions. Word has length 113 [2021-11-22 19:20:05,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:20:05,457 INFO L470 AbstractCegarLoop]: Abstraction has 782 states and 833 transitions. [2021-11-22 19:20:05,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:05,458 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 833 transitions. [2021-11-22 19:20:05,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-22 19:20:05,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:20:05,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:20:05,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-22 19:20:05,459 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:20:05,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:20:05,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1130881669, now seen corresponding path program 1 times [2021-11-22 19:20:05,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:20:05,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056424298] [2021-11-22 19:20:05,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:20:05,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:20:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:20:05,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:20:05,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:20:05,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056424298] [2021-11-22 19:20:05,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056424298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 19:20:05,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 19:20:05,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 19:20:05,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386324801] [2021-11-22 19:20:05,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 19:20:05,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 19:20:05,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:20:05,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 19:20:05,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-22 19:20:05,666 INFO L87 Difference]: Start difference. First operand 782 states and 833 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:05,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:20:05,863 INFO L93 Difference]: Finished difference Result 890 states and 941 transitions. [2021-11-22 19:20:05,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 19:20:05,864 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-22 19:20:05,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:20:05,866 INFO L225 Difference]: With dead ends: 890 [2021-11-22 19:20:05,866 INFO L226 Difference]: Without dead ends: 706 [2021-11-22 19:20:05,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-22 19:20:05,868 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 130 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 19:20:05,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 1269 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 19:20:05,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-11-22 19:20:05,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 660. [2021-11-22 19:20:05,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 648 states have (on average 1.0694444444444444) internal successors, (693), 659 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:05,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 693 transitions. [2021-11-22 19:20:05,900 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 693 transitions. Word has length 114 [2021-11-22 19:20:05,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:20:05,900 INFO L470 AbstractCegarLoop]: Abstraction has 660 states and 693 transitions. [2021-11-22 19:20:05,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:05,900 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 693 transitions. [2021-11-22 19:20:05,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-22 19:20:05,901 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:20:05,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:20:05,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-22 19:20:05,902 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:20:05,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:20:05,902 INFO L85 PathProgramCache]: Analyzing trace with hash -2079309597, now seen corresponding path program 1 times [2021-11-22 19:20:05,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:20:05,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301900081] [2021-11-22 19:20:05,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:20:05,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:20:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:20:08,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:20:08,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:20:08,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301900081] [2021-11-22 19:20:08,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301900081] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 19:20:08,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802484866] [2021-11-22 19:20:08,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:20:08,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 19:20:08,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 19:20:08,183 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) [2021-11-22 19:20:08,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 19:20:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:20:08,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 2844 conjuncts, 128 conjunts are in the unsatisfiable core [2021-11-22 19:20:08,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 19:20:08,723 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 [2021-11-22 19:20:08,815 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 19:20:08,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-22 19:20:08,889 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 16 treesize of output 12 [2021-11-22 19:20:08,893 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 [2021-11-22 19:20:09,664 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 19:20:09,665 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 15 treesize of output 21 [2021-11-22 19:20:09,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-22 19:20:09,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 19:20:09,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 19:20:09,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 19:20:09,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-11-22 19:20:10,571 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 19:20:10,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-22 19:20:10,838 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-11-22 19:20:10,843 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 43 treesize of output 54 [2021-11-22 19:20:10,957 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 19:20:10,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2021-11-22 19:20:11,082 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 35 treesize of output 23 [2021-11-22 19:20:11,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:20:11,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 19:20:11,435 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_1609 (Array Int Int))) (< 0 (mod (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_aws_byte_buf_append_~to#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_~to#1.offset| 8)) v_ArrVal_1609) |c_ULTIMATE.start_aws_byte_buf_append_~to#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_~to#1.offset| 16)) 18446744073709551616))) (<= (mod (select (select |c_#memory_int| |c_ULTIMATE.start_aws_byte_buf_append_~from#1.base|) |c_ULTIMATE.start_aws_byte_buf_append_~from#1.offset|) 18446744073709551616) 0)) is different from false [2021-11-22 19:20:11,865 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1606 Int) (v_ArrVal_1609 (Array Int Int)) (v_ArrVal_1607 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base|) (+ |c_ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.offset| 8) v_ArrVal_1606)))) (or (< 0 (mod (select (select (store .cse0 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base| v_ArrVal_1607) |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 8)) v_ArrVal_1609) |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 16)) 18446744073709551616)) (<= (mod (select (select .cse0 |c_ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base|) |c_ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.offset|) 18446744073709551616) 0)))) is different from false [2021-11-22 19:20:11,931 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1606 Int) (|ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| Int) (v_ArrVal_1609 (Array Int Int)) (v_ArrVal_1607 (Array Int Int))) (let ((.cse0 (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.offset| 8) v_ArrVal_1606))) (or (<= (mod (select .cse0 |c_ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.offset|) 18446744073709551616) 0) (< 0 (mod (select (select (store (store |c_#memory_int| |ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| .cse0) (select (select (store |c_#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| v_ArrVal_1607) |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 8)) v_ArrVal_1609) |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 16)) 18446744073709551616))))) is different from false [2021-11-22 19:20:11,968 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1606 Int) (|ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| Int) (v_ArrVal_1609 (Array Int Int)) (v_ArrVal_1607 (Array Int Int))) (let ((.cse0 (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base|) 8 v_ArrVal_1606))) (or (< 0 (mod (select (select (store (store |c_#memory_int| |ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| .cse0) (select (select (store |c_#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| v_ArrVal_1607) |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 8)) v_ArrVal_1609) |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 16)) 18446744073709551616)) (<= (mod (select .cse0 0) 18446744073709551616) 0)))) is different from false [2021-11-22 19:20:12,597 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 19:20:12,598 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 125 [2021-11-22 19:20:12,611 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 19:20:12,612 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 177 treesize of output 180 [2021-11-22 19:20:12,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 172 [2021-11-22 19:20:32,786 INFO L354 Elim1Store]: treesize reduction 165, result has 46.4 percent of original size [2021-11-22 19:20:32,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 212 treesize of output 278 [2021-11-22 19:20:32,859 INFO L354 Elim1Store]: treesize reduction 14, result has 81.6 percent of original size [2021-11-22 19:20:32,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 310 treesize of output 339 [2021-11-22 19:20:32,883 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 19:20:32,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 339 treesize of output 355 [2021-11-22 19:20:32,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 355 treesize of output 347 [2021-11-22 19:20:32,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-22 19:20:46,554 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 19:20:46,566 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 19:20:46,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 71 [2021-11-22 19:20:46,699 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 19:20:46,713 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 19:20:46,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 194 treesize of output 178 [2021-11-22 19:20:47,003 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 19:20:47,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 24 [2021-11-22 19:20:47,217 INFO L354 Elim1Store]: treesize reduction 12, result has 80.3 percent of original size [2021-11-22 19:20:47,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 241 treesize of output 217 [2021-11-22 19:20:51,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:20:51,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802484866] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 19:20:51,522 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 19:20:51,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 20, 20] total 65 [2021-11-22 19:20:51,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467423271] [2021-11-22 19:20:51,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 19:20:51,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-11-22 19:20:51,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 19:20:51,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-11-22 19:20:51,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=3380, Unknown=31, NotChecked=484, Total=4160 [2021-11-22 19:20:51,524 INFO L87 Difference]: Start difference. First operand 660 states and 693 transitions. Second operand has 65 states, 65 states have (on average 4.938461538461539) internal successors, (321), 65 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:20:52,268 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|)) (.cse3 (= (mod (select (select |c_#memory_int| |c_ULTIMATE.start_aws_byte_buf_is_valid_~buf#1.base|) (+ 16 |c_ULTIMATE.start_aws_byte_buf_is_valid_~buf#1.offset|)) 18446744073709551616) 0))) (let ((.cse0 (not |c_ULTIMATE.start_aws_byte_buf_is_valid_#t~short677#1|)) (.cse2 (not .cse3)) (.cse4 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) 8)) (.cse1 (= (mod (select .cse5 |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset|) 18446744073709551616) 0))) (and (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) 8) 0) .cse0 (= |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| |c_ULTIMATE.start_aws_byte_buf_is_valid_~buf#1.offset|) (or (and (not .cse1) (not |c_ULTIMATE.start_aws_byte_buf_is_valid_#t~short686#1|)) (and |c_ULTIMATE.start_aws_byte_buf_is_valid_#t~short686#1| .cse1)) (or (and .cse0 .cse2) (and .cse3 |c_ULTIMATE.start_aws_byte_buf_is_valid_#t~short677#1|)) (= |c_ULTIMATE.start_bounded_malloc_#res#1.offset| 0) (<= (+ .cse4 1) |c_#StackHeapBarrier|) (<= (+ |c_ULTIMATE.start_bounded_malloc_#res#1.base| 1) |c_#StackHeapBarrier|) (not |c_ULTIMATE.start_aws_byte_buf_is_valid_#t~short679#1|) .cse2 (= (select |c_#valid| |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) 1) (not (= |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base| |c_ULTIMATE.start_bounded_malloc_#res#1.base|)) (not (= (mod (select .cse5 (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 16)) 18446744073709551616) 0)) (= |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base| |c_ULTIMATE.start_aws_byte_buf_is_valid_~buf#1.base|) (= |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base| |c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (not (= |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base| .cse4)) .cse1 (= |c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0) (= |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 0) (forall ((v_ArrVal_1606 Int) (|ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| Int) (v_ArrVal_1609 (Array Int Int)) (v_ArrVal_1607 (Array Int Int))) (let ((.cse6 (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base|) 8 v_ArrVal_1606))) (or (< 0 (mod (select (select (store (store |c_#memory_int| |ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| .cse6) (select (select (store |c_#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| v_ArrVal_1607) |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 8)) v_ArrVal_1609) |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 16)) 18446744073709551616)) (<= (mod (select .cse6 0) 18446744073709551616) 0))))))) is different from false [2021-11-22 19:20:52,328 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) 8)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|))) (and (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) 8) 0) (<= (+ .cse0 1) |c_#StackHeapBarrier|) (= (select |c_#valid| |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) 1) (not (= (mod (select .cse1 (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 16)) 18446744073709551616) 0)) (not (= |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base| .cse0)) (= (mod (select .cse1 |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset|) 18446744073709551616) 0) (= |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 0) (forall ((v_ArrVal_1606 Int) (|ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| Int) (v_ArrVal_1609 (Array Int Int)) (v_ArrVal_1607 (Array Int Int))) (let ((.cse2 (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base|) 8 v_ArrVal_1606))) (or (< 0 (mod (select (select (store (store |c_#memory_int| |ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| .cse2) (select (select (store |c_#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| v_ArrVal_1607) |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 8)) v_ArrVal_1609) |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 16)) 18446744073709551616)) (<= (mod (select .cse2 0) 18446744073709551616) 0)))))) is different from false [2021-11-22 19:20:52,391 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) 8)) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|))) (and (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) 8) 0) (not (= |c_ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|)) (= |c_ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.offset| 0) (not (= |c_ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| .cse0)) (forall ((v_ArrVal_1606 Int) (|ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| Int) (v_ArrVal_1609 (Array Int Int)) (v_ArrVal_1607 (Array Int Int))) (let ((.cse1 (store (select |c_#memory_int| |ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.offset| 8) v_ArrVal_1606))) (or (<= (mod (select .cse1 |c_ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.offset|) 18446744073709551616) 0) (< 0 (mod (select (select (store (store |c_#memory_int| |ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| .cse1) (select (select (store |c_#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base| v_ArrVal_1607) |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 8)) v_ArrVal_1609) |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 16)) 18446744073709551616))))) (not (= (mod (select .cse2 (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 16)) 18446744073709551616) 0)) (not (= |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base| .cse0)) (= (mod (select .cse2 |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset|) 18446744073709551616) 0) (= |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 0))) is different from false [2021-11-22 19:21:09,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 19:21:09,419 INFO L93 Difference]: Finished difference Result 1272 states and 1326 transitions. [2021-11-22 19:21:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-11-22 19:21:09,420 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 4.938461538461539) internal successors, (321), 65 states have internal predecessors, (321), 0 states have call successors, (0), 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 116 [2021-11-22 19:21:09,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 19:21:09,421 INFO L225 Difference]: With dead ends: 1272 [2021-11-22 19:21:09,421 INFO L226 Difference]: Without dead ends: 1146 [2021-11-22 19:21:09,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 205 SyntacticMatches, 12 SemanticMatches, 140 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 5590 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=2507, Invalid=15574, Unknown=37, NotChecked=1904, Total=20022 [2021-11-22 19:21:09,425 INFO L933 BasicCegarLoop]: 477 mSDtfsCounter, 4182 mSDsluCounter, 11937 mSDsCounter, 0 mSdLazyCounter, 5753 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4182 SdHoareTripleChecker+Valid, 12414 SdHoareTripleChecker+Invalid, 10606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 5753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4607 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-22 19:21:09,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4182 Valid, 12414 Invalid, 10606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 5753 Invalid, 0 Unknown, 4607 Unchecked, 6.1s Time] [2021-11-22 19:21:09,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2021-11-22 19:21:09,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 679. [2021-11-22 19:21:09,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 667 states have (on average 1.0689655172413792) internal successors, (713), 678 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:21:09,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 713 transitions. [2021-11-22 19:21:09,461 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 713 transitions. Word has length 116 [2021-11-22 19:21:09,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 19:21:09,461 INFO L470 AbstractCegarLoop]: Abstraction has 679 states and 713 transitions. [2021-11-22 19:21:09,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 4.938461538461539) internal successors, (321), 65 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 19:21:09,462 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 713 transitions. [2021-11-22 19:21:09,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-22 19:21:09,462 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 19:21:09,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 19:21:09,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 19:21:09,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-11-22 19:21:09,673 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-22 19:21:09,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 19:21:09,674 INFO L85 PathProgramCache]: Analyzing trace with hash 782647517, now seen corresponding path program 1 times [2021-11-22 19:21:09,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 19:21:09,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026170906] [2021-11-22 19:21:09,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:21:09,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 19:21:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:21:12,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:21:12,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 19:21:12,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026170906] [2021-11-22 19:21:12,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026170906] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 19:21:12,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051917510] [2021-11-22 19:21:12,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 19:21:12,264 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 19:21:12,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 19:21:12,265 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) [2021-11-22 19:21:12,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 19:21:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 19:21:20,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 2841 conjuncts, 149 conjunts are in the unsatisfiable core [2021-11-22 19:21:20,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 19:21:20,733 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 [2021-11-22 19:21:20,803 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 19:21:20,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-22 19:21:20,860 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 [2021-11-22 19:21:20,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-22 19:21:21,667 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 19:21:21,668 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 28 treesize of output 32 [2021-11-22 19:21:21,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 19:21:21,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2021-11-22 19:21:21,698 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-22 19:21:21,699 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 24 treesize of output 28 [2021-11-22 19:21:21,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-22 19:21:23,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 19:21:23,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2021-11-22 19:21:23,631 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-22 19:21:23,631 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 52 treesize of output 53 [2021-11-22 19:21:23,923 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-22 19:21:23,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 19:21:24,269 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-22 19:21:24,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 50 [2021-11-22 19:21:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 19:21:24,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 19:21:26,985 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1725 (Array Int Int)) (v_ArrVal_1724 (Array Int Int)) (v_ArrVal_1723 (Array Int Int)) (|v_ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base_14| Int)) (let ((.cse0 (mod (select v_ArrVal_1723 0) 18446744073709551616)) (.cse1 (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base_14| v_ArrVal_1723))) (or (< 1 .cse0) (<= .cse0 0) (not (= (mod (select (select .cse1 |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset|) 18446744073709551616) 0)) (let ((.cse7 (store .cse1 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base_14| v_ArrVal_1724) |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 8)) v_ArrVal_1725))) (let ((.cse5 (select .cse7 |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.base|))) (let ((.cse2 (select .cse5 |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset|)) (.cse3 (select (select .cse7 |v_ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base_14|) 0))) (let ((.cse6 (+ .cse2 .cse3))) (<= (let ((.cse4 (select (store .cse5 |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| .cse6) (+ |c_ULTIMATE.start_aws_byte_buf_append_harness_~#to~0#1.offset| 16)))) (+ (* 18446744073709551616 (div (+ 18446744073709551615 .cse2 .cse3 (* .cse4 (- 1))) 18446744073709551616)) (* 18446744073709551616 (div .cse4 18446744073709551616)))) .cse6))))) (<= |v_ULTIMATE.start_aws_byte_buf_append_harness_~#from~0#1.base_14| |c_#StackHeapBarrier|)))) is different from false [2021-11-22 19:21:29,161 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 19:21:29,161 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 507 treesize of output 417 [2021-11-22 19:21:29,177 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 19:21:29,177 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 671 treesize of output 620 [2021-11-22 19:21:29,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 616 treesize of output 576 [2021-11-22 19:21:51,790 INFO L354 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2021-11-22 19:21:51,792 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 618 treesize of output 450 [2021-11-22 19:21:51,814 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 19:21:51,815 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 1263 treesize of output 1215 [2021-11-22 19:21:51,905 INFO L354 Elim1Store]: treesize reduction 10, result has 65.5 percent of original size [2021-11-22 19:21:51,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1335 treesize of output 1161 [2021-11-22 19:21:51,979 INFO L354 Elim1Store]: treesize reduction 10, result has 65.5 percent of original size [2021-11-22 19:21:51,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1221 treesize of output 1105 Killed by 15