./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/memset_using_uint64_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 9ff439c9da308e48e314eaeb6f620d0560f5430b3c601570b5afd8d635a5b965 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 13:48:22,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 13:48:22,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 13:48:22,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 13:48:22,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 13:48:22,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 13:48:22,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 13:48:22,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 13:48:22,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 13:48:22,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 13:48:22,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 13:48:22,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 13:48:22,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 13:48:22,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 13:48:22,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 13:48:22,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 13:48:22,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 13:48:22,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 13:48:22,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 13:48:22,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 13:48:22,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 13:48:22,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 13:48:22,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 13:48:22,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 13:48:22,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 13:48:22,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 13:48:22,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 13:48:22,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 13:48:22,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 13:48:22,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 13:48:22,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 13:48:22,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 13:48:22,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 13:48:22,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 13:48:22,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 13:48:22,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 13:48:22,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 13:48:22,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 13:48:22,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 13:48:22,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 13:48:22,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 13:48:22,342 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 13:48:22,372 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 13:48:22,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 13:48:22,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 13:48:22,373 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 13:48:22,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 13:48:22,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 13:48:22,375 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 13:48:22,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 13:48:22,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 13:48:22,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 13:48:22,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 13:48:22,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 13:48:22,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 13:48:22,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 13:48:22,377 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 13:48:22,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 13:48:22,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 13:48:22,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 13:48:22,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 13:48:22,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:48:22,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 13:48:22,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 13:48:22,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 13:48:22,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 13:48:22,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 13:48:22,378 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 13:48:22,378 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 13:48:22,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 13:48:22,379 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 13:48:22,379 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ff439c9da308e48e314eaeb6f620d0560f5430b3c601570b5afd8d635a5b965 [2021-11-05 13:48:22,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 13:48:22,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 13:48:22,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 13:48:22,721 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 13:48:22,722 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 13:48:22,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i [2021-11-05 13:48:22,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/205b309c5/0c14e084af6c47e58b8a36f07d92a840/FLAG27253e160 [2021-11-05 13:48:23,422 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 13:48:23,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i [2021-11-05 13:48:23,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/205b309c5/0c14e084af6c47e58b8a36f07d92a840/FLAG27253e160 [2021-11-05 13:48:23,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/205b309c5/0c14e084af6c47e58b8a36f07d92a840 [2021-11-05 13:48:23,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 13:48:23,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 13:48:23,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 13:48:23,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 13:48:23,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 13:48:23,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:48:23" (1/1) ... [2021-11-05 13:48:23,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12051035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:23, skipping insertion in model container [2021-11-05 13:48:23,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:48:23" (1/1) ... [2021-11-05 13:48:23,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 13:48:23,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 13:48:24,008 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4493,4506] [2021-11-05 13:48:24,012 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4553,4566] [2021-11-05 13:48:24,020 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:48:24,022 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:48:24,353 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,357 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,357 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,358 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,358 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,366 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,366 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,367 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,368 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,369 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,369 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,370 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,370 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,481 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:48:24,482 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:48:24,483 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:48:24,484 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:48:24,485 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:48:24,485 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:48:24,486 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:48:24,486 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:48:24,486 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:48:24,487 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:48:24,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:48:24,548 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 13:48:24,568 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4493,4506] [2021-11-05 13:48:24,569 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/memset_using_uint64_harness.i[4553,4566] [2021-11-05 13:48:24,570 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:48:24,572 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:48:24,615 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,616 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,616 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,618 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,619 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,625 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,626 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,627 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,628 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,630 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,631 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,632 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,632 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:48:24,650 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:48:24,651 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:48:24,652 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:48:24,652 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:48:24,653 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:48:24,653 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:48:24,654 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:48:24,654 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:48:24,654 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:48:24,655 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:48:24,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:48:24,766 INFO L208 MainTranslator]: Completed translation [2021-11-05 13:48:24,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:24 WrapperNode [2021-11-05 13:48:24,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 13:48:24,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 13:48:24,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 13:48:24,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 13:48:24,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:24" (1/1) ... [2021-11-05 13:48:24,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:24" (1/1) ... [2021-11-05 13:48:24,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 13:48:24,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 13:48:24,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 13:48:24,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 13:48:24,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:24" (1/1) ... [2021-11-05 13:48:24,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:24" (1/1) ... [2021-11-05 13:48:24,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:24" (1/1) ... [2021-11-05 13:48:24,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:24" (1/1) ... [2021-11-05 13:48:24,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:24" (1/1) ... [2021-11-05 13:48:24,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:24" (1/1) ... [2021-11-05 13:48:24,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:24" (1/1) ... [2021-11-05 13:48:24,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 13:48:24,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 13:48:24,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 13:48:24,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 13:48:24,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:24" (1/1) ... [2021-11-05 13:48:24,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:48:24,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:48:24,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 13:48:24,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 13:48:24,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 13:48:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 13:48:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 13:48:25,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 13:48:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 13:48:25,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 13:48:25,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 13:48:25,440 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 13:48:25,440 INFO L299 CfgBuilder]: Removed 36 assume(true) statements. [2021-11-05 13:48:25,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:48:25 BoogieIcfgContainer [2021-11-05 13:48:25,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 13:48:25,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 13:48:25,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 13:48:25,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 13:48:25,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 01:48:23" (1/3) ... [2021-11-05 13:48:25,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f5f179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:48:25, skipping insertion in model container [2021-11-05 13:48:25,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:48:24" (2/3) ... [2021-11-05 13:48:25,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f5f179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:48:25, skipping insertion in model container [2021-11-05 13:48:25,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:48:25" (3/3) ... [2021-11-05 13:48:25,446 INFO L111 eAbstractionObserver]: Analyzing ICFG memset_using_uint64_harness.i [2021-11-05 13:48:25,449 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 13:48:25,449 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-05 13:48:25,510 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 13:48:25,515 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 13:48:25,516 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-05 13:48:25,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 53 states have (on average 1.490566037735849) internal successors, (79), 56 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:25,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 13:48:25,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:25,532 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] [2021-11-05 13:48:25,533 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:48:25,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:25,537 INFO L85 PathProgramCache]: Analyzing trace with hash 546734931, now seen corresponding path program 1 times [2021-11-05 13:48:25,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:48:25,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222968772] [2021-11-05 13:48:25,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:25,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:48:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:25,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:25,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:48:25,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222968772] [2021-11-05 13:48:25,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222968772] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:25,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:25,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 13:48:25,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280418968] [2021-11-05 13:48:25,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:25,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 13:48:25,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:48:25,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 13:48:25,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:48:25,866 INFO L87 Difference]: Start difference. First operand has 57 states, 53 states have (on average 1.490566037735849) internal successors, (79), 56 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:25,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:25,889 INFO L93 Difference]: Finished difference Result 111 states and 154 transitions. [2021-11-05 13:48:25,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 13:48:25,891 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2021-11-05 13:48:25,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:25,897 INFO L225 Difference]: With dead ends: 111 [2021-11-05 13:48:25,898 INFO L226 Difference]: Without dead ends: 51 [2021-11-05 13:48:25,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:48:25,906 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.18ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:25,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 3.18ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 13:48:25,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-05 13:48:25,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-11-05 13:48:25,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 50 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:25,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2021-11-05 13:48:25,936 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 31 [2021-11-05 13:48:25,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:25,936 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2021-11-05 13:48:25,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:25,937 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2021-11-05 13:48:25,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 13:48:25,938 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:25,938 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] [2021-11-05 13:48:25,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 13:48:25,938 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:48:25,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:25,940 INFO L85 PathProgramCache]: Analyzing trace with hash 2045186899, now seen corresponding path program 1 times [2021-11-05 13:48:25,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:48:25,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881304715] [2021-11-05 13:48:25,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:25,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:48:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:26,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:26,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:48:26,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881304715] [2021-11-05 13:48:26,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881304715] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:26,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:26,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:48:26,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604327839] [2021-11-05 13:48:26,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:26,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:48:26,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:48:26,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:48:26,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:48:26,180 INFO L87 Difference]: Start difference. First operand 51 states and 62 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:26,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:26,219 INFO L93 Difference]: Finished difference Result 56 states and 67 transitions. [2021-11-05 13:48:26,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:48:26,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2021-11-05 13:48:26,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:26,221 INFO L225 Difference]: With dead ends: 56 [2021-11-05 13:48:26,221 INFO L226 Difference]: Without dead ends: 54 [2021-11-05 13:48:26,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.48ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:48:26,222 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 46 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.76ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.81ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:26,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 102 Invalid, 13 Unknown, 0 Unchecked, 1.76ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 17.81ms Time] [2021-11-05 13:48:26,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-05 13:48:26,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2021-11-05 13:48:26,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 47 states have (on average 1.2765957446808511) internal successors, (60), 48 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:26,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2021-11-05 13:48:26,234 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 31 [2021-11-05 13:48:26,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:26,234 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2021-11-05 13:48:26,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:26,234 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2021-11-05 13:48:26,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-05 13:48:26,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:26,235 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] [2021-11-05 13:48:26,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 13:48:26,235 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:48:26,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:26,235 INFO L85 PathProgramCache]: Analyzing trace with hash 2131932046, now seen corresponding path program 1 times [2021-11-05 13:48:26,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:48:26,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694179768] [2021-11-05 13:48:26,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:26,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:48:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:26,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:26,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:48:26,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694179768] [2021-11-05 13:48:26,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694179768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:26,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:26,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 13:48:26,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505605421] [2021-11-05 13:48:26,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:26,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 13:48:26,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:48:26,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 13:48:26,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:48:26,624 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:26,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:26,701 INFO L93 Difference]: Finished difference Result 98 states and 117 transitions. [2021-11-05 13:48:26,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:48:26,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-11-05 13:48:26,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:26,705 INFO L225 Difference]: With dead ends: 98 [2021-11-05 13:48:26,706 INFO L226 Difference]: Without dead ends: 83 [2021-11-05 13:48:26,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.58ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:48:26,709 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 125 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.33ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.24ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:26,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 155 Invalid, 27 Unknown, 0 Unchecked, 3.33ms Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 39.24ms Time] [2021-11-05 13:48:26,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-05 13:48:26,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2021-11-05 13:48:26,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 73 states have (on average 1.3013698630136987) internal successors, (95), 74 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:26,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 95 transitions. [2021-11-05 13:48:26,727 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 95 transitions. Word has length 36 [2021-11-05 13:48:26,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:26,727 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 95 transitions. [2021-11-05 13:48:26,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:26,728 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 95 transitions. [2021-11-05 13:48:26,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-05 13:48:26,729 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:26,729 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] [2021-11-05 13:48:26,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 13:48:26,730 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:48:26,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:26,732 INFO L85 PathProgramCache]: Analyzing trace with hash 192927141, now seen corresponding path program 1 times [2021-11-05 13:48:26,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:48:26,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284789070] [2021-11-05 13:48:26,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:26,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:48:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:26,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:26,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:48:26,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284789070] [2021-11-05 13:48:26,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284789070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:26,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:26,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 13:48:26,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134715077] [2021-11-05 13:48:26,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:26,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 13:48:26,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:48:26,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 13:48:26,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 13:48:26,836 INFO L87 Difference]: Start difference. First operand 75 states and 95 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:26,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:26,860 INFO L93 Difference]: Finished difference Result 118 states and 148 transitions. [2021-11-05 13:48:26,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 13:48:26,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-11-05 13:48:26,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:26,864 INFO L225 Difference]: With dead ends: 118 [2021-11-05 13:48:26,864 INFO L226 Difference]: Without dead ends: 77 [2021-11-05 13:48:26,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 13:48:26,867 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 1 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.50ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.18ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:26,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 112 Invalid, 7 Unknown, 0 Unchecked, 2.50ms Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 9.18ms Time] [2021-11-05 13:48:26,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-05 13:48:26,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2021-11-05 13:48:26,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 1.2972972972972974) internal successors, (96), 75 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:26,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 96 transitions. [2021-11-05 13:48:26,880 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 96 transitions. Word has length 37 [2021-11-05 13:48:26,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:26,883 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 96 transitions. [2021-11-05 13:48:26,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:26,885 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2021-11-05 13:48:26,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-05 13:48:26,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:26,887 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] [2021-11-05 13:48:26,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 13:48:26,887 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:48:26,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:26,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1686538128, now seen corresponding path program 1 times [2021-11-05 13:48:26,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:48:26,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692811860] [2021-11-05 13:48:26,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:26,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:48:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:27,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:27,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:48:27,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692811860] [2021-11-05 13:48:27,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692811860] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:27,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:27,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 13:48:27,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951207998] [2021-11-05 13:48:27,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:27,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 13:48:27,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:48:27,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 13:48:27,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:48:27,079 INFO L87 Difference]: Start difference. First operand 76 states and 96 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:27,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:27,140 INFO L93 Difference]: Finished difference Result 84 states and 103 transitions. [2021-11-05 13:48:27,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:48:27,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2021-11-05 13:48:27,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:27,142 INFO L225 Difference]: With dead ends: 84 [2021-11-05 13:48:27,142 INFO L226 Difference]: Without dead ends: 50 [2021-11-05 13:48:27,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.90ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:48:27,144 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 102 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.84ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.98ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:27,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 157 Invalid, 25 Unknown, 0 Unchecked, 3.84ms Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 29.98ms Time] [2021-11-05 13:48:27,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-05 13:48:27,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-05 13:48:27,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.25) internal successors, (60), 49 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:27,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2021-11-05 13:48:27,158 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 38 [2021-11-05 13:48:27,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:27,159 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2021-11-05 13:48:27,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:27,159 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2021-11-05 13:48:27,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-05 13:48:27,161 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:27,161 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] [2021-11-05 13:48:27,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 13:48:27,162 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:48:27,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:27,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1454626717, now seen corresponding path program 1 times [2021-11-05 13:48:27,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:48:27,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874798444] [2021-11-05 13:48:27,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:27,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:48:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:27,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-05 13:48:27,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:48:27,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874798444] [2021-11-05 13:48:27,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874798444] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:48:27,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:48:27,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:48:27,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853732620] [2021-11-05 13:48:27,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:48:27,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:48:27,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:48:27,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:48:27,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:48:27,239 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:27,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:27,295 INFO L93 Difference]: Finished difference Result 92 states and 104 transitions. [2021-11-05 13:48:27,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:48:27,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2021-11-05 13:48:27,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:27,296 INFO L225 Difference]: With dead ends: 92 [2021-11-05 13:48:27,296 INFO L226 Difference]: Without dead ends: 73 [2021-11-05 13:48:27,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.54ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:48:27,297 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 23 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.51ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.76ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:27,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 198 Invalid, 19 Unknown, 0 Unchecked, 0.51ms Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 50.76ms Time] [2021-11-05 13:48:27,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-05 13:48:27,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 52. [2021-11-05 13:48:27,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 50 states have (on average 1.24) internal successors, (62), 51 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:27,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2021-11-05 13:48:27,311 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 39 [2021-11-05 13:48:27,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:27,312 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2021-11-05 13:48:27,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:27,312 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2021-11-05 13:48:27,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-05 13:48:27,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:27,313 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] [2021-11-05 13:48:27,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 13:48:27,313 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:48:27,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:27,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1196461279, now seen corresponding path program 1 times [2021-11-05 13:48:27,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:48:27,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903245381] [2021-11-05 13:48:27,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:27,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:48:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:28,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:28,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:48:28,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903245381] [2021-11-05 13:48:28,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903245381] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:48:28,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008035602] [2021-11-05 13:48:28,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:28,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:48:28,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:48:29,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:48:29,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 13:48:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:29,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 103 conjunts are in the unsatisfiable core [2021-11-05 13:48:29,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:48:29,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-05 13:48:29,752 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-05 13:48:29,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-05 13:48:29,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-05 13:48:29,782 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-05 13:48:30,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 42 [2021-11-05 13:48:30,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:30,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2021-11-05 13:48:30,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:30,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:30,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:30,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 66 [2021-11-05 13:48:30,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:30,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:30,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:30,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:30,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:30,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:30,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 78 [2021-11-05 13:48:31,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:31,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:31,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:31,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:31,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:31,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:31,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:31,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:31,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:31,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:48:31,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 90 [2021-11-05 13:48:31,432 INFO L354 Elim1Store]: treesize reduction 230, result has 16.7 percent of original size [2021-11-05 13:48:31,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 135 treesize of output 97 [2021-11-05 13:48:33,814 INFO L354 Elim1Store]: treesize reduction 780, result has 0.9 percent of original size [2021-11-05 13:48:33,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 289 treesize of output 190 [2021-11-05 13:48:34,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:34,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... Killed by 15