./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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_array_list_capacity_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 d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 09:46:19,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 09:46:19,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 09:46:19,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 09:46:19,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 09:46:19,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 09:46:19,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 09:46:19,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 09:46:19,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 09:46:19,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 09:46:19,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 09:46:19,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 09:46:19,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 09:46:19,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 09:46:19,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 09:46:19,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 09:46:19,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 09:46:19,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 09:46:19,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 09:46:19,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 09:46:19,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 09:46:19,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 09:46:19,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 09:46:19,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 09:46:19,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 09:46:19,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 09:46:19,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 09:46:19,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 09:46:19,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 09:46:19,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 09:46:19,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 09:46:19,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 09:46:19,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 09:46:19,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 09:46:19,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 09:46:19,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 09:46:19,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 09:46:19,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 09:46:19,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 09:46:19,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 09:46:19,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 09:46:19,909 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 09:46:19,933 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 09:46:19,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 09:46:19,934 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 09:46:19,934 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 09:46:19,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 09:46:19,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 09:46:19,936 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 09:46:19,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 09:46:19,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 09:46:19,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 09:46:19,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 09:46:19,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 09:46:19,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 09:46:19,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 09:46:19,938 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 09:46:19,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 09:46:19,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 09:46:19,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 09:46:19,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 09:46:19,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 09:46:19,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 09:46:19,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 09:46:19,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 09:46:19,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 09:46:19,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 09:46:19,940 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 09:46:19,940 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 09:46:19,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 09:46:19,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 09:46:19,941 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 [2021-11-06 09:46:20,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 09:46:20,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 09:46:20,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 09:46:20,174 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 09:46:20,174 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 09:46:20,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2021-11-06 09:46:20,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8004e3bd/cb11560485004519bd6797d4a6c0e692/FLAGad3c1b711 [2021-11-06 09:46:20,791 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 09:46:20,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2021-11-06 09:46:20,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8004e3bd/cb11560485004519bd6797d4a6c0e692/FLAGad3c1b711 [2021-11-06 09:46:20,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8004e3bd/cb11560485004519bd6797d4a6c0e692 [2021-11-06 09:46:20,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 09:46:20,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 09:46:20,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 09:46:20,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 09:46:20,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 09:46:20,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:46:20" (1/1) ... [2021-11-06 09:46:20,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30408488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:20, skipping insertion in model container [2021-11-06 09:46:20,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:46:20" (1/1) ... [2021-11-06 09:46:20,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 09:46:21,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 09:46:21,281 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4497,4510] [2021-11-06 09:46:21,289 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4557,4570] [2021-11-06 09:46:21,302 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 09:46:21,306 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 09:46:21,793 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 09:46:21,846 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,850 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,850 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,851 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,852 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,864 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,865 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,865 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,865 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,066 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 09:46:22,067 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 09:46:22,068 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 09:46:22,069 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 09:46:22,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 09:46:22,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 09:46:22,071 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 09:46:22,079 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 09:46:22,080 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 09:46:22,080 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 09:46:22,191 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,201 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 09:46:22,296 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 09:46:22,319 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4497,4510] [2021-11-06 09:46:22,320 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4557,4570] [2021-11-06 09:46:22,321 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 09:46:22,322 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 09:46:22,360 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 09:46:22,370 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,370 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,370 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,378 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,378 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,380 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,424 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 09:46:22,426 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 09:46:22,426 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 09:46:22,427 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 09:46:22,427 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 09:46:22,428 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 09:46:22,428 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 09:46:22,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 09:46:22,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 09:46:22,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 09:46:22,471 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,478 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:22,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 09:46:22,749 INFO L208 MainTranslator]: Completed translation [2021-11-06 09:46:22,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:22 WrapperNode [2021-11-06 09:46:22,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 09:46:22,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 09:46:22,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 09:46:22,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 09:46:22,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:22" (1/1) ... [2021-11-06 09:46:22,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:22" (1/1) ... [2021-11-06 09:46:22,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 09:46:22,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 09:46:22,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 09:46:22,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 09:46:22,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:22" (1/1) ... [2021-11-06 09:46:22,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:22" (1/1) ... [2021-11-06 09:46:22,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:22" (1/1) ... [2021-11-06 09:46:22,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:22" (1/1) ... [2021-11-06 09:46:22,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:22" (1/1) ... [2021-11-06 09:46:22,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:22" (1/1) ... [2021-11-06 09:46:22,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:22" (1/1) ... [2021-11-06 09:46:22,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 09:46:22,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 09:46:22,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 09:46:22,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 09:46:22,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:22" (1/1) ... [2021-11-06 09:46:23,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 09:46:23,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:46:23,028 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) [2021-11-06 09:46:23,052 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 [2021-11-06 09:46:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 09:46:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 09:46:23,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 09:46:23,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 09:46:23,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 09:46:23,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 09:46:23,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 09:46:23,080 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-06 09:46:23,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 09:46:23,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 09:46:23,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 09:46:23,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 09:46:30,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 09:46:30,809 INFO L299 CfgBuilder]: Removed 110 assume(true) statements. [2021-11-06 09:46:30,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:46:30 BoogieIcfgContainer [2021-11-06 09:46:30,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 09:46:30,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 09:46:30,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 09:46:30,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 09:46:30,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:46:20" (1/3) ... [2021-11-06 09:46:30,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f753b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:46:30, skipping insertion in model container [2021-11-06 09:46:30,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:22" (2/3) ... [2021-11-06 09:46:30,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f753b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:46:30, skipping insertion in model container [2021-11-06 09:46:30,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:46:30" (3/3) ... [2021-11-06 09:46:30,824 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_capacity_harness.i [2021-11-06 09:46:30,827 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 09:46:30,828 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-06 09:46:30,863 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 09:46:30,876 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 [2021-11-06 09:46:30,876 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-06 09:46:30,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 123 states have (on average 1.4308943089430894) internal successors, (176), 132 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:30,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-06 09:46:30,900 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:46:30,901 INFO L513 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] [2021-11-06 09:46:30,901 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 09:46:30,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:46:30,905 INFO L85 PathProgramCache]: Analyzing trace with hash -608975248, now seen corresponding path program 1 times [2021-11-06 09:46:30,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:46:30,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896951848] [2021-11-06 09:46:30,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:30,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:46:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:46:31,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 09:46:31,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:46:31,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896951848] [2021-11-06 09:46:31,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896951848] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:46:31,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:46:31,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 09:46:31,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010844385] [2021-11-06 09:46:31,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 09:46:31,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:46:31,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 09:46:31,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 09:46:31,511 INFO L87 Difference]: Start difference. First operand has 133 states, 123 states have (on average 1.4308943089430894) internal successors, (176), 132 states have internal predecessors, (176), 0 states have call successors, (0), 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 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:31,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:46:31,552 INFO L93 Difference]: Finished difference Result 262 states and 347 transitions. [2021-11-06 09:46:31,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 09:46:31,553 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2021-11-06 09:46:31,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:46:31,562 INFO L225 Difference]: With dead ends: 262 [2021-11-06 09:46:31,563 INFO L226 Difference]: Without dead ends: 128 [2021-11-06 09:46:31,565 INFO L786 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 [2021-11-06 09:46:31,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-06 09:46:31,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2021-11-06 09:46:31,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 119 states have (on average 1.2941176470588236) internal successors, (154), 127 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:31,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 154 transitions. [2021-11-06 09:46:31,609 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 154 transitions. Word has length 29 [2021-11-06 09:46:31,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:46:31,610 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 154 transitions. [2021-11-06 09:46:31,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:31,611 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 154 transitions. [2021-11-06 09:46:31,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-06 09:46:31,612 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:46:31,617 INFO L513 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] [2021-11-06 09:46:31,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 09:46:31,618 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 09:46:31,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:46:31,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1598932068, now seen corresponding path program 1 times [2021-11-06 09:46:31,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:46:31,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788491523] [2021-11-06 09:46:31,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:31,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:46:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:46:31,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 09:46:31,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:46:31,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788491523] [2021-11-06 09:46:31,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788491523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:46:31,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:46:31,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 09:46:31,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669191711] [2021-11-06 09:46:31,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 09:46:31,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:46:31,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 09:46:31,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 09:46:31,876 INFO L87 Difference]: Start difference. First operand 128 states and 154 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:31,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:46:31,916 INFO L93 Difference]: Finished difference Result 243 states and 293 transitions. [2021-11-06 09:46:31,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 09:46:31,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2021-11-06 09:46:31,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:46:31,920 INFO L225 Difference]: With dead ends: 243 [2021-11-06 09:46:31,921 INFO L226 Difference]: Without dead ends: 129 [2021-11-06 09:46:31,922 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 09:46:31,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-06 09:46:31,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-11-06 09:46:31,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 120 states have (on average 1.2916666666666667) internal successors, (155), 128 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:31,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 155 transitions. [2021-11-06 09:46:31,931 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 155 transitions. Word has length 29 [2021-11-06 09:46:31,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:46:31,931 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 155 transitions. [2021-11-06 09:46:31,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:31,932 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 155 transitions. [2021-11-06 09:46:31,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-06 09:46:31,933 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:46:31,933 INFO L513 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] [2021-11-06 09:46:31,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 09:46:31,934 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 09:46:31,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:46:31,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1732945574, now seen corresponding path program 1 times [2021-11-06 09:46:31,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:46:31,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164637239] [2021-11-06 09:46:31,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:31,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:46:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:46:32,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 09:46:32,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:46:32,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164637239] [2021-11-06 09:46:32,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164637239] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:46:32,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:46:32,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 09:46:32,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570511783] [2021-11-06 09:46:32,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 09:46:32,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:46:32,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 09:46:32,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 09:46:32,189 INFO L87 Difference]: Start difference. First operand 129 states and 155 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:32,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:46:32,382 INFO L93 Difference]: Finished difference Result 226 states and 270 transitions. [2021-11-06 09:46:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 09:46:32,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2021-11-06 09:46:32,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:46:32,383 INFO L225 Difference]: With dead ends: 226 [2021-11-06 09:46:32,384 INFO L226 Difference]: Without dead ends: 129 [2021-11-06 09:46:32,384 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 09:46:32,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-06 09:46:32,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-11-06 09:46:32,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 120 states have (on average 1.275) internal successors, (153), 128 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:32,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 153 transitions. [2021-11-06 09:46:32,391 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 153 transitions. Word has length 29 [2021-11-06 09:46:32,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:46:32,392 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 153 transitions. [2021-11-06 09:46:32,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:32,392 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 153 transitions. [2021-11-06 09:46:32,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-06 09:46:32,393 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:46:32,393 INFO L513 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] [2021-11-06 09:46:32,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 09:46:32,394 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 09:46:32,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:46:32,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1562874250, now seen corresponding path program 1 times [2021-11-06 09:46:32,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:46:32,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139320714] [2021-11-06 09:46:32,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:32,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:46:32,492 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 09:46:32,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1114007270] [2021-11-06 09:46:32,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:32,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:46:32,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:46:32,494 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) [2021-11-06 09:46:32,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 09:46:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:46:33,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 2408 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-06 09:46:33,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 09:46:33,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 09:46:33,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:46:33,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139320714] [2021-11-06 09:46:33,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 09:46:33,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114007270] [2021-11-06 09:46:33,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114007270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:46:33,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:46:33,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 09:46:33,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085203365] [2021-11-06 09:46:33,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 09:46:33,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:46:33,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 09:46:33,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 09:46:33,781 INFO L87 Difference]: Start difference. First operand 129 states and 153 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 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) [2021-11-06 09:46:34,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:46:34,073 INFO L93 Difference]: Finished difference Result 201 states and 236 transitions. [2021-11-06 09:46:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 09:46:34,074 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 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 [2021-11-06 09:46:34,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:46:34,075 INFO L225 Difference]: With dead ends: 201 [2021-11-06 09:46:34,075 INFO L226 Difference]: Without dead ends: 129 [2021-11-06 09:46:34,075 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-06 09:46:34,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-06 09:46:34,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-11-06 09:46:34,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 120 states have (on average 1.2583333333333333) internal successors, (151), 128 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:34,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 151 transitions. [2021-11-06 09:46:34,082 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 151 transitions. Word has length 37 [2021-11-06 09:46:34,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:46:34,082 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 151 transitions. [2021-11-06 09:46:34,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 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) [2021-11-06 09:46:34,083 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 151 transitions. [2021-11-06 09:46:34,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-06 09:46:34,084 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:46:34,084 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 09:46:34,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-06 09:46:34,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:46:34,308 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 09:46:34,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:46:34,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1678171348, now seen corresponding path program 1 times [2021-11-06 09:46:34,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:46:34,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565103947] [2021-11-06 09:46:34,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:34,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:46:34,388 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 09:46:34,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1978058689] [2021-11-06 09:46:34,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:34,389 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:46:34,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:46:34,390 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) [2021-11-06 09:46:34,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-06 09:46:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:46:35,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 2593 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 09:46:35,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 09:46:35,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 09:46:35,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:46:35,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565103947] [2021-11-06 09:46:35,305 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 09:46:35,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978058689] [2021-11-06 09:46:35,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978058689] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:46:35,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:46:35,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 09:46:35,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625187898] [2021-11-06 09:46:35,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 09:46:35,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:46:35,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 09:46:35,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 09:46:35,307 INFO L87 Difference]: Start difference. First operand 129 states and 151 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:35,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:46:35,520 INFO L93 Difference]: Finished difference Result 247 states and 292 transitions. [2021-11-06 09:46:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 09:46:35,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-06 09:46:35,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:46:35,524 INFO L225 Difference]: With dead ends: 247 [2021-11-06 09:46:35,524 INFO L226 Difference]: Without dead ends: 149 [2021-11-06 09:46:35,524 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 09:46:35,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-11-06 09:46:35,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 137. [2021-11-06 09:46:35,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 128 states have (on average 1.2421875) internal successors, (159), 136 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:35,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 159 transitions. [2021-11-06 09:46:35,538 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 159 transitions. Word has length 53 [2021-11-06 09:46:35,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:46:35,538 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 159 transitions. [2021-11-06 09:46:35,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:35,538 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 159 transitions. [2021-11-06 09:46:35,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-06 09:46:35,539 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:46:35,539 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 09:46:35,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-06 09:46:35,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:46:35,748 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 09:46:35,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:46:35,748 INFO L85 PathProgramCache]: Analyzing trace with hash -96836014, now seen corresponding path program 1 times [2021-11-06 09:46:35,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:46:35,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708077066] [2021-11-06 09:46:35,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:35,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:46:35,829 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 09:46:35,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1852718983] [2021-11-06 09:46:35,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:35,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:46:35,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:46:35,831 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 09:46:35,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-06 09:51:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:51:29,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 2598 conjuncts, 215 conjunts are in the unsatisfiable core [2021-11-06 09:51:29,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 09:51:29,643 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 [2021-11-06 09:51:29,933 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 9 treesize of output 3 [2021-11-06 09:51:29,943 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 9 treesize of output 3 [2021-11-06 09:51:30,266 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-06 09:51:30,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 case distinctions, treesize of input 29 treesize of output 33 [2021-11-06 09:51:30,463 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 13 treesize of output 9 [2021-11-06 09:51:33,033 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-06 09:51:33,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 33 [2021-11-06 09:51:33,684 INFO L354 Elim1Store]: treesize reduction 126, result has 27.2 percent of original size [2021-11-06 09:51:33,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 38 treesize of output 72 [2021-11-06 09:51:42,648 INFO L354 Elim1Store]: treesize reduction 312, result has 14.0 percent of original size [2021-11-06 09:51:42,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 83 treesize of output 115 [2021-11-06 09:51:43,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 09:51:43,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 09:51:43,698 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-06 09:51:43,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2021-11-06 09:51:58,562 INFO L354 Elim1Store]: treesize reduction 132, result has 15.9 percent of original size [2021-11-06 09:51:58,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 170 treesize of output 183 [2021-11-06 09:52:03,029 INFO L354 Elim1Store]: treesize reduction 84, result has 30.6 percent of original size [2021-11-06 09:52:03,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 105 [2021-11-06 09:52:03,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 09:52:03,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 09:52:03,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 09:52:03,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 09:52:03,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 09:52:03,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 09:52:03,916 INFO L354 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2021-11-06 09:52:03,917 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 4 case distinctions, treesize of input 91 treesize of output 71 [2021-11-06 09:52:07,275 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-06 09:52:07,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 136 treesize of output 80 [2021-11-06 09:52:07,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 09:52:07,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:52:07,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708077066] [2021-11-06 09:52:07,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 09:52:07,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852718983] [2021-11-06 09:52:07,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852718983] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:52:07,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:52:07,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-06 09:52:07,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173806883] [2021-11-06 09:52:07,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-06 09:52:07,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:52:07,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-06 09:52:07,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=787, Unknown=1, NotChecked=0, Total=870 [2021-11-06 09:52:07,782 INFO L87 Difference]: Start difference. First operand 137 states and 159 transitions. Second operand has 30 states, 30 states have (on average 1.7666666666666666) internal successors, (53), 30 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:52:47,563 WARN L207 SmtUtils]: Spent 7.33 s on a formula simplification. DAG size of input: 140 DAG size of output: 111 [2021-11-06 09:52:53,868 WARN L207 SmtUtils]: Spent 5.26 s on a formula simplification. DAG size of input: 134 DAG size of output: 105 [2021-11-06 09:53:00,046 WARN L207 SmtUtils]: Spent 5.66 s on a formula simplification. DAG size of input: 126 DAG size of output: 97 [2021-11-06 09:53:05,610 WARN L207 SmtUtils]: Spent 5.41 s on a formula simplification. DAG size of input: 135 DAG size of output: 106 [2021-11-06 09:53:13,124 WARN L207 SmtUtils]: Spent 6.99 s on a formula simplification. DAG size of input: 120 DAG size of output: 91 [2021-11-06 09:53:50,033 WARN L207 SmtUtils]: Spent 5.37 s on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2021-11-06 09:53:56,310 WARN L207 SmtUtils]: Spent 5.90 s on a formula simplification. DAG size of input: 162 DAG size of output: 112 [2021-11-06 09:54:03,629 WARN L207 SmtUtils]: Spent 5.14 s on a formula simplification. DAG size of input: 111 DAG size of output: 103 [2021-11-06 09:54:22,332 WARN L207 SmtUtils]: Spent 5.78 s on a formula simplification. DAG size of input: 112 DAG size of output: 104 [2021-11-06 09:54:28,313 WARN L207 SmtUtils]: Spent 5.74 s on a formula simplification. DAG size of input: 157 DAG size of output: 112 [2021-11-06 09:54:33,565 WARN L207 SmtUtils]: Spent 5.03 s on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2021-11-06 09:54:58,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:54:58,008 INFO L93 Difference]: Finished difference Result 668 states and 780 transitions. [2021-11-06 09:54:58,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-11-06 09:54:58,009 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.7666666666666666) internal successors, (53), 30 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-06 09:54:58,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:54:58,013 INFO L225 Difference]: With dead ends: 668 [2021-11-06 09:54:58,013 INFO L226 Difference]: Without dead ends: 605 [2021-11-06 09:54:58,018 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5433 ImplicationChecksByTransitivity, 130.8s TimeCoverageRelationStatistics Valid=1674, Invalid=14836, Unknown=2, NotChecked=0, Total=16512 [2021-11-06 09:54:58,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2021-11-06 09:54:58,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 204. [2021-11-06 09:54:58,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 195 states have (on average 1.241025641025641) internal successors, (242), 203 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:54:58,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 242 transitions. [2021-11-06 09:54:58,039 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 242 transitions. Word has length 53 [2021-11-06 09:54:58,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:54:58,039 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 242 transitions. [2021-11-06 09:54:58,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.7666666666666666) internal successors, (53), 30 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:54:58,039 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 242 transitions. [2021-11-06 09:54:58,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-06 09:54:58,040 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:54:58,041 INFO L513 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] [2021-11-06 09:54:58,255 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2021-11-06 09:54:58,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-06 09:54:58,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:54:58,270 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 09:54:58,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:54:58,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1466688522, now seen corresponding path program 1 times [2021-11-06 09:54:58,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:54:58,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846697253] [2021-11-06 09:54:58,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:54:58,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:54:58,353 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 09:54:58,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1866061764] [2021-11-06 09:54:58,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:54:58,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:54:58,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:54:58,355 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 09:54:58,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process Killed by 15