./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 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_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-wip.dd.seqcomp-5b36d44 [2021-11-07 08:16:10,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:16:10,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:16:10,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:16:10,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:16:10,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:16:10,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:16:10,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:16:10,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:16:10,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:16:10,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:16:10,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:16:10,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:16:10,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:16:10,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:16:10,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:16:10,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:16:10,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:16:10,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:16:10,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:16:10,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:16:10,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:16:10,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:16:10,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:16:10,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:16:10,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:16:10,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:16:10,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:16:10,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:16:10,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:16:10,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:16:10,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:16:10,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:16:10,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:16:10,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:16:10,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:16:10,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:16:10,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:16:10,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:16:10,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:16:10,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:16:10,168 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 08:16:10,192 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:16:10,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:16:10,193 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:16:10,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:16:10,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:16:10,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:16:10,195 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:16:10,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:16:10,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:16:10,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:16:10,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:16:10,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:16:10,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:16:10,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:16:10,197 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:16:10,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:16:10,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:16:10,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:16:10,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:16:10,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:16:10,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:16:10,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:16:10,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:16:10,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:16:10,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:16:10,199 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:16:10,199 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:16:10,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:16:10,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:16:10,200 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 [2021-11-07 08:16:10,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:16:10,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:16:10,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:16:10,420 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:16:10,421 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:16:10,422 INFO L432 ainManager$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 [2021-11-07 08:16:10,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df2efb9f0/8178d7af89c248019644fdf1e78510ee/FLAG97a0dae86 [2021-11-07 08:16:11,098 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:16:11,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2021-11-07 08:16:11,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df2efb9f0/8178d7af89c248019644fdf1e78510ee/FLAG97a0dae86 [2021-11-07 08:16:11,510 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df2efb9f0/8178d7af89c248019644fdf1e78510ee [2021-11-07 08:16:11,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:16:11,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:16:11,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:16:11,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:16:11,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:16:11,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:16:11" (1/1) ... [2021-11-07 08:16:11,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71ceb478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:11, skipping insertion in model container [2021-11-07 08:16:11,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:16:11" (1/1) ... [2021-11-07 08:16:11,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:16:11,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:16:11,844 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] [2021-11-07 08:16:11,849 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] [2021-11-07 08:16:11,861 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 08:16:11,866 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 08:16:12,349 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 08:16:12,429 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,431 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,431 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,433 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,434 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,448 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,448 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,449 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,450 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,451 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,452 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,452 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,453 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,667 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 08:16:12,668 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 08:16:12,668 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 08:16:12,669 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 08:16:12,670 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 08:16:12,671 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 08:16:12,671 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 08:16:12,672 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 08:16:12,673 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 08:16:12,673 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 08:16:12,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,767 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:16:12,859 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:16:12,907 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] [2021-11-07 08:16:12,907 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] [2021-11-07 08:16:12,909 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 08:16:12,910 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 08:16:12,952 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 08:16:12,963 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,963 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,964 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,964 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,965 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,970 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,970 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,971 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,971 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,972 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,972 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,973 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,973 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:12,997 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 08:16:12,998 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 08:16:12,999 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 08:16:12,999 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 08:16:13,000 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 08:16:13,000 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 08:16:13,001 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 08:16:13,001 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 08:16:13,002 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 08:16:13,002 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 08:16:13,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:13,025 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:16:13,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:16:13,237 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:16:13,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:13 WrapperNode [2021-11-07 08:16:13,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:16:13,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:16:13,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:16:13,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:16:13,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:13" (1/1) ... [2021-11-07 08:16:13,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:13" (1/1) ... [2021-11-07 08:16:13,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:16:13,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:16:13,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:16:13,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:16:13,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:13" (1/1) ... [2021-11-07 08:16:13,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:13" (1/1) ... [2021-11-07 08:16:13,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:13" (1/1) ... [2021-11-07 08:16:13,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:13" (1/1) ... [2021-11-07 08:16:13,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:13" (1/1) ... [2021-11-07 08:16:13,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:13" (1/1) ... [2021-11-07 08:16:13,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:13" (1/1) ... [2021-11-07 08:16:13,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:16:13,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:16:13,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:16:13,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:16:13,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:13" (1/1) ... [2021-11-07 08:16:13,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:16:13,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:16:13,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:16:13,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:16:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:16:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:16:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 08:16:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 08:16:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:16:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:16:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:16:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 08:16:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 08:16:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 08:16:13,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:16:13,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:16:21,421 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:16:21,422 INFO L299 CfgBuilder]: Removed 110 assume(true) statements. [2021-11-07 08:16:21,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:16:21 BoogieIcfgContainer [2021-11-07 08:16:21,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:16:21,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:16:21,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:16:21,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:16:21,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:16:11" (1/3) ... [2021-11-07 08:16:21,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0acb4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:16:21, skipping insertion in model container [2021-11-07 08:16:21,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:16:13" (2/3) ... [2021-11-07 08:16:21,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0acb4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:16:21, skipping insertion in model container [2021-11-07 08:16:21,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:16:21" (3/3) ... [2021-11-07 08:16:21,433 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_capacity_harness.i [2021-11-07 08:16:21,437 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:16:21,437 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-07 08:16:21,475 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:16:21,480 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 08:16:21,480 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-07 08:16:21,493 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) [2021-11-07 08:16:21,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 08:16:21,497 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:16:21,498 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] [2021-11-07 08:16:21,498 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)] === [2021-11-07 08:16:21,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:16:21,502 INFO L85 PathProgramCache]: Analyzing trace with hash -608975248, now seen corresponding path program 1 times [2021-11-07 08:16:21,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:16:21,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731303351] [2021-11-07 08:16:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:16:21,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:16:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:16:22,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:16:22,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:16:22,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731303351] [2021-11-07 08:16:22,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731303351] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:16:22,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:16:22,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:16:22,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785537667] [2021-11-07 08:16:22,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:16:22,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 08:16:22,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:16:22,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 08:16:22,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:16:22,108 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) [2021-11-07 08:16:22,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:16:22,150 INFO L93 Difference]: Finished difference Result 262 states and 347 transitions. [2021-11-07 08:16:22,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:16:22,152 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 [2021-11-07 08:16:22,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:16:22,162 INFO L225 Difference]: With dead ends: 262 [2021-11-07 08:16:22,162 INFO L226 Difference]: Without dead ends: 128 [2021-11-07 08:16:22,164 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 [2021-11-07 08:16:22,168 INFO L933 BasicCegarLoop]: 159 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, 159 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 08:16:22,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 4.70ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 08:16:22,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-07 08:16:22,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2021-11-07 08:16:22,229 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) [2021-11-07 08:16:22,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 154 transitions. [2021-11-07 08:16:22,232 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 154 transitions. Word has length 29 [2021-11-07 08:16:22,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:16:22,233 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 154 transitions. [2021-11-07 08:16:22,234 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) [2021-11-07 08:16:22,238 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 154 transitions. [2021-11-07 08:16:22,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 08:16:22,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:16:22,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:16:22,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:16:22,240 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)] === [2021-11-07 08:16:22,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:16:22,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1598932068, now seen corresponding path program 1 times [2021-11-07 08:16:22,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:16:22,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676827416] [2021-11-07 08:16:22,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:16:22,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:16:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:16:22,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:16:22,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:16:22,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676827416] [2021-11-07 08:16:22,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676827416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:16:22,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:16:22,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:16:22,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929899293] [2021-11-07 08:16:22,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:16:22,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:16:22,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:16:22,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:16:22,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:16:22,527 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) [2021-11-07 08:16:22,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:16:22,564 INFO L93 Difference]: Finished difference Result 243 states and 293 transitions. [2021-11-07 08:16:22,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:16:22,565 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 [2021-11-07 08:16:22,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:16:22,566 INFO L225 Difference]: With dead ends: 243 [2021-11-07 08:16:22,567 INFO L226 Difference]: Without dead ends: 129 [2021-11-07 08:16:22,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:16:22,569 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.03ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.26ms IncrementalHoareTripleChecker+Time [2021-11-07 08:16:22,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 302 Invalid, 5 Unknown, 0 Unchecked, 2.03ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 26.26ms Time] [2021-11-07 08:16:22,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-07 08:16:22,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-11-07 08:16:22,579 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) [2021-11-07 08:16:22,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 155 transitions. [2021-11-07 08:16:22,579 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 155 transitions. Word has length 29 [2021-11-07 08:16:22,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:16:22,581 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 155 transitions. [2021-11-07 08:16:22,581 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) [2021-11-07 08:16:22,582 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 155 transitions. [2021-11-07 08:16:22,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 08:16:22,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:16:22,583 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] [2021-11-07 08:16:22,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:16:22,583 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)] === [2021-11-07 08:16:22,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:16:22,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1732945574, now seen corresponding path program 1 times [2021-11-07 08:16:22,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:16:22,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646154559] [2021-11-07 08:16:22,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:16:22,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:16:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:16:22,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:16:22,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:16:22,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646154559] [2021-11-07 08:16:22,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646154559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:16:22,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:16:22,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:16:22,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374914511] [2021-11-07 08:16:22,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:16:22,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:16:22,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:16:22,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:16:22,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:16:22,869 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) [2021-11-07 08:16:23,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:16:23,067 INFO L93 Difference]: Finished difference Result 226 states and 270 transitions. [2021-11-07 08:16:23,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:16:23,068 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 [2021-11-07 08:16:23,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:16:23,069 INFO L225 Difference]: With dead ends: 226 [2021-11-07 08:16:23,069 INFO L226 Difference]: Without dead ends: 129 [2021-11-07 08:16:23,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.21ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:16:23,070 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 141 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 155.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.14ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 180.29ms IncrementalHoareTripleChecker+Time [2021-11-07 08:16:23,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 180 Invalid, 40 Unknown, 0 Unchecked, 3.14ms Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 180.29ms Time] [2021-11-07 08:16:23,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-07 08:16:23,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-11-07 08:16:23,078 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) [2021-11-07 08:16:23,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 153 transitions. [2021-11-07 08:16:23,078 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 153 transitions. Word has length 29 [2021-11-07 08:16:23,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:16:23,078 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 153 transitions. [2021-11-07 08:16:23,079 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) [2021-11-07 08:16:23,079 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 153 transitions. [2021-11-07 08:16:23,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 08:16:23,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:16:23,080 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] [2021-11-07 08:16:23,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:16:23,080 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)] === [2021-11-07 08:16:23,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:16:23,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1562874250, now seen corresponding path program 1 times [2021-11-07 08:16:23,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:16:23,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129477434] [2021-11-07 08:16:23,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:16:23,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:16:23,195 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:16:23,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [240114563] [2021-11-07 08:16:23,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:16:23,196 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:16:23,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:16:23,199 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:16:23,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 08:16:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:16:24,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 2408 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 08:16:24,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:16:24,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:16:24,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 08:16:24,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:16:24,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129477434] [2021-11-07 08:16:24,405 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:16:24,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240114563] [2021-11-07 08:16:24,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240114563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:16:24,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:16:24,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:16:24,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998015033] [2021-11-07 08:16:24,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:16:24,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:16:24,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:16:24,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:16:24,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:16:24,407 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) [2021-11-07 08:16:24,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:16:24,725 INFO L93 Difference]: Finished difference Result 201 states and 236 transitions. [2021-11-07 08:16:24,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 08:16:24,729 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 [2021-11-07 08:16:24,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:16:24,730 INFO L225 Difference]: With dead ends: 201 [2021-11-07 08:16:24,730 INFO L226 Difference]: Without dead ends: 129 [2021-11-07 08:16:24,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 140.47ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:16:24,731 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 490 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 193.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.25ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 219.44ms IncrementalHoareTripleChecker+Time [2021-11-07 08:16:24,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [490 Valid, 168 Invalid, 64 Unknown, 0 Unchecked, 3.25ms Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 219.44ms Time] [2021-11-07 08:16:24,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-07 08:16:24,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-11-07 08:16:24,746 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) [2021-11-07 08:16:24,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 151 transitions. [2021-11-07 08:16:24,747 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 151 transitions. Word has length 37 [2021-11-07 08:16:24,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:16:24,747 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 151 transitions. [2021-11-07 08:16:24,747 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) [2021-11-07 08:16:24,747 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 151 transitions. [2021-11-07 08:16:24,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 08:16:24,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:16:24,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:16:24,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:16:24,975 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 [2021-11-07 08:16:24,976 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)] === [2021-11-07 08:16:24,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:16:24,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1678171348, now seen corresponding path program 1 times [2021-11-07 08:16:24,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:16:24,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332672676] [2021-11-07 08:16:24,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:16:24,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:16:25,069 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:16:25,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [526613598] [2021-11-07 08:16:25,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:16:25,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:16:25,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:16:25,073 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) [2021-11-07 08:16:25,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 08:16:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:16:25,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 2593 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 08:16:25,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:16:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:16:26,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 08:16:26,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:16:26,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332672676] [2021-11-07 08:16:26,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:16:26,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526613598] [2021-11-07 08:16:26,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526613598] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:16:26,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:16:26,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:16:26,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385896834] [2021-11-07 08:16:26,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:16:26,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:16:26,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:16:26,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:16:26,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:16:26,032 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) [2021-11-07 08:16:26,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:16:26,238 INFO L93 Difference]: Finished difference Result 247 states and 292 transitions. [2021-11-07 08:16:26,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:16:26,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-07 08:16:26,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:16:26,240 INFO L225 Difference]: With dead ends: 247 [2021-11-07 08:16:26,240 INFO L226 Difference]: Without dead ends: 149 [2021-11-07 08:16:26,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.67ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:16:26,241 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 31 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 154.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.59ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 178.40ms IncrementalHoareTripleChecker+Time [2021-11-07 08:16:26,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 405 Invalid, 72 Unknown, 0 Unchecked, 1.59ms Time], IncrementalHoareTripleChecker [13 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 178.40ms Time] [2021-11-07 08:16:26,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-11-07 08:16:26,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 137. [2021-11-07 08:16:26,247 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) [2021-11-07 08:16:26,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 159 transitions. [2021-11-07 08:16:26,248 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 159 transitions. Word has length 53 [2021-11-07 08:16:26,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:16:26,249 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 159 transitions. [2021-11-07 08:16:26,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:16:26,249 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 159 transitions. [2021-11-07 08:16:26,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 08:16:26,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:16:26,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:16:26,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 08:16:26,463 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 [2021-11-07 08:16:26,463 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)] === [2021-11-07 08:16:26,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:16:26,464 INFO L85 PathProgramCache]: Analyzing trace with hash -96836014, now seen corresponding path program 1 times [2021-11-07 08:16:26,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:16:26,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772477651] [2021-11-07 08:16:26,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:16:26,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:16:26,536 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:16:26,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548644271] [2021-11-07 08:16:26,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:16:26,537 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:16:26,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:16:26,538 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) [2021-11-07 08:16:26,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 08:21:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:21:24,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 2598 conjuncts, 215 conjunts are in the unsatisfiable core [2021-11-07 08:21:24,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:21:24,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 08:21:24,645 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 [2021-11-07 08:21:24,657 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 [2021-11-07 08:21:24,990 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-07 08:21:24,990 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 [2021-11-07 08:21:25,203 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 [2021-11-07 08:21:27,428 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-07 08:21:27,429 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 [2021-11-07 08:21:28,048 INFO L354 Elim1Store]: treesize reduction 126, result has 27.2 percent of original size [2021-11-07 08:21:28,049 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 [2021-11-07 08:21:36,993 INFO L354 Elim1Store]: treesize reduction 312, result has 14.0 percent of original size [2021-11-07 08:21:36,994 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 [2021-11-07 08:21:37,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:21:37,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:21:37,918 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 08:21:37,919 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 [2021-11-07 08:21:51,942 INFO L354 Elim1Store]: treesize reduction 132, result has 15.9 percent of original size [2021-11-07 08:21:51,943 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 [2021-11-07 08:21:56,427 INFO L354 Elim1Store]: treesize reduction 84, result has 30.6 percent of original size [2021-11-07 08:21:56,428 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 [2021-11-07 08:21:56,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:21:56,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:21:56,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:21:57,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:21:57,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:21:57,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 08:21:57,040 INFO L354 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2021-11-07 08:21:57,041 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 [2021-11-07 08:22:00,560 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 08:22:00,561 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 [2021-11-07 08:22:01,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:22:01,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 08:22:01,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:22:01,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772477651] [2021-11-07 08:22:01,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:22:01,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548644271] [2021-11-07 08:22:01,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548644271] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:22:01,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:22:01,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-07 08:22:01,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840155961] [2021-11-07 08:22:01,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:22:01,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 08:22:01,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:22:01,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 08:22:01,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=787, Unknown=0, NotChecked=0, Total=870 [2021-11-07 08:22:01,088 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) [2021-11-07 08:22:03,140 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:22:03,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:22:03,830 INFO L93 Difference]: Finished difference Result 221 states and 258 transitions. [2021-11-07 08:22:03,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-07 08:22:03,831 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 [2021-11-07 08:22:03,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:22:03,833 INFO L225 Difference]: With dead ends: 221 [2021-11-07 08:22:03,833 INFO L226 Difference]: Without dead ends: 219 [2021-11-07 08:22:03,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 9277.26ms TimeCoverageRelationStatistics Valid=101, Invalid=955, Unknown=0, NotChecked=0, Total=1056 [2021-11-07 08:22:03,835 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 97 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2307.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.71ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 411 IncrementalHoareTripleChecker+Unchecked, 2472.54ms IncrementalHoareTripleChecker+Time [2021-11-07 08:22:03,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 1631 Invalid, 499 Unknown, 0 Unchecked, 5.71ms Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 1 Unknown, 411 Unchecked, 2472.54ms Time] [2021-11-07 08:22:03,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-11-07 08:22:03,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 184. [2021-11-07 08:22:03,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 175 states have (on average 1.2342857142857142) internal successors, (216), 183 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:22:03,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 216 transitions. [2021-11-07 08:22:03,859 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 216 transitions. Word has length 53 [2021-11-07 08:22:03,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:22:03,861 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 216 transitions. [2021-11-07 08:22:03,861 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) [2021-11-07 08:22:03,862 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 216 transitions. [2021-11-07 08:22:03,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 08:22:03,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:22:03,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:22:04,087 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2021-11-07 08:22:04,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 137 [2021-11-07 08:22:04,157 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 [2021-11-07 08:22:04,157 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)] === [2021-11-07 08:22:04,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:22:04,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1466688522, now seen corresponding path program 1 times [2021-11-07 08:22:04,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:22:04,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222875873] [2021-11-07 08:22:04,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:22:04,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:22:04,228 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:22:04,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [512192114] [2021-11-07 08:22:04,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:22:04,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:22:04,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:22:04,231 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) [2021-11-07 08:22:04,262 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