./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_back_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_back_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 43b2ef256b4d1a93a084f86d3d9a0522c1b29c695f7bf9f8438f4c917cc80da0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 09:46:19,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 09:46:19,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 09:46:19,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 09:46:19,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 09:46:19,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 09:46:19,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 09:46:19,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 09:46:19,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 09:46:19,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 09:46:19,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 09:46:19,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 09:46:19,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 09:46:19,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 09:46:19,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 09:46:19,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 09:46:19,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 09:46:19,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 09:46:19,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 09:46:19,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 09:46:19,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 09:46:19,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 09:46:19,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 09:46:19,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 09:46:19,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 09:46:19,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 09:46:19,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 09:46:19,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 09:46:19,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 09:46:19,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 09:46:19,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 09:46:19,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 09:46:19,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 09:46:19,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 09:46:19,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 09:46:19,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 09:46:19,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 09:46:19,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 09:46:19,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 09:46:19,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 09:46:19,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 09:46:19,366 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 09:46:19,396 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 09:46:19,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 09:46:19,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 09:46:19,397 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 09:46:19,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 09:46:19,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 09:46:19,398 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 09:46:19,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 09:46:19,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 09:46:19,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 09:46:19,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 09:46:19,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 09:46:19,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 09:46:19,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 09:46:19,399 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 09:46:19,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 09:46:19,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 09:46:19,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 09:46:19,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 09:46:19,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 09:46:19,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 09:46:19,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 09:46:19,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 09:46:19,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 09:46:19,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 09:46:19,401 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 09:46:19,401 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 09:46:19,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 09:46:19,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 09:46:19,402 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43b2ef256b4d1a93a084f86d3d9a0522c1b29c695f7bf9f8438f4c917cc80da0 [2021-11-06 09:46:19,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 09:46:19,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 09:46:19,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 09:46:19,616 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 09:46:19,617 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 09:46:19,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2021-11-06 09:46:19,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd474c298/b829e4be2cfb480a90c665fcb578c287/FLAG33da60e38 [2021-11-06 09:46:20,197 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 09:46:20,197 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2021-11-06 09:46:20,224 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd474c298/b829e4be2cfb480a90c665fcb578c287/FLAG33da60e38 [2021-11-06 09:46:20,440 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd474c298/b829e4be2cfb480a90c665fcb578c287 [2021-11-06 09:46:20,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 09:46:20,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 09:46:20,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 09:46:20,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 09:46:20,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 09:46:20,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:46:20" (1/1) ... [2021-11-06 09:46:20,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3796041d 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 09:46:20,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:46:20" (1/1) ... [2021-11-06 09:46:20,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 09:46:20,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 09:46:20,661 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_back_harness.i[4493,4506] [2021-11-06 09:46:20,667 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_back_harness.i[4553,4566] [2021-11-06 09:46:20,681 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 09:46:20,685 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 09:46:21,060 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 09:46:21,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,101 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,109 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,114 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,115 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,115 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,116 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,117 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,117 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,118 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,308 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 09:46:21,309 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 09:46:21,310 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 09:46:21,310 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 09:46:21,311 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 09:46:21,311 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 09:46:21,312 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 09:46:21,312 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 09:46:21,313 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 09:46:21,313 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 09:46:21,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,405 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 09:46:21,467 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 09:46:21,480 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_back_harness.i[4493,4506] [2021-11-06 09:46:21,482 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_back_harness.i[4553,4566] [2021-11-06 09:46:21,485 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 09:46:21,486 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 09:46:21,531 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 09:46:21,539 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,541 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,541 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,546 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,548 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,549 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,553 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,553 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,588 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 09:46:21,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 09:46:21,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 09:46:21,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 09:46:21,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 09:46:21,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 09:46:21,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 09:46:21,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 09:46:21,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 09:46:21,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 09:46:21,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,641 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:46:21,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 09:46:21,801 INFO L208 MainTranslator]: Completed translation [2021-11-06 09:46:21,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:21 WrapperNode [2021-11-06 09:46:21,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 09:46:21,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 09:46:21,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 09:46:21,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 09:46:21,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:21" (1/1) ... [2021-11-06 09:46:21,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:21" (1/1) ... [2021-11-06 09:46:21,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 09:46:21,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 09:46:21,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 09:46:21,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 09:46:21,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:21" (1/1) ... [2021-11-06 09:46:21,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:21" (1/1) ... [2021-11-06 09:46:21,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:21" (1/1) ... [2021-11-06 09:46:21,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:21" (1/1) ... [2021-11-06 09:46:22,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:21" (1/1) ... [2021-11-06 09:46:22,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:21" (1/1) ... [2021-11-06 09:46:22,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:21" (1/1) ... [2021-11-06 09:46:22,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 09:46:22,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 09:46:22,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 09:46:22,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 09:46:22,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:21" (1/1) ... [2021-11-06 09:46:22,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 09:46:22,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:46:22,112 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 09:46:22,139 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 09:46:22,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 09:46:22,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 09:46:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 09:46:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 09:46:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 09:46:22,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 09:46:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 09:46:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-06 09:46:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 09:46:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 09:46:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 09:46:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 09:46:29,931 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 09:46:29,931 INFO L299 CfgBuilder]: Removed 229 assume(true) statements. [2021-11-06 09:46:29,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:46:29 BoogieIcfgContainer [2021-11-06 09:46:29,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 09:46:29,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 09:46:29,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 09:46:29,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 09:46:29,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:46:20" (1/3) ... [2021-11-06 09:46:29,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c887257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:46:29, skipping insertion in model container [2021-11-06 09:46:29,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:21" (2/3) ... [2021-11-06 09:46:29,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c887257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:46:29, skipping insertion in model container [2021-11-06 09:46:29,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:46:29" (3/3) ... [2021-11-06 09:46:29,939 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_back_harness.i [2021-11-06 09:46:29,942 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 09:46:29,943 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-06 09:46:29,971 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 09:46:29,975 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 09:46:29,975 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-06 09:46:29,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 278 states, 264 states have (on average 1.4166666666666667) internal successors, (374), 277 states have internal predecessors, (374), 0 states have call successors, (0), 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 09:46:29,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-06 09:46:29,993 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:46:29,993 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] [2021-11-06 09:46:29,994 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 09:46:29,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:46:29,997 INFO L85 PathProgramCache]: Analyzing trace with hash 949117531, now seen corresponding path program 1 times [2021-11-06 09:46:30,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:46:30,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658745566] [2021-11-06 09:46:30,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:30,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:46:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:46:30,454 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 09:46:30,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:46:30,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658745566] [2021-11-06 09:46:30,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658745566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:46:30,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:46:30,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 09:46:30,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612461599] [2021-11-06 09:46:30,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 09:46:30,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:46:30,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 09:46:30,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 09:46:30,476 INFO L87 Difference]: Start difference. First operand has 278 states, 264 states have (on average 1.4166666666666667) internal successors, (374), 277 states have internal predecessors, (374), 0 states have call successors, (0), 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 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 09:46:30,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:46:30,519 INFO L93 Difference]: Finished difference Result 552 states and 743 transitions. [2021-11-06 09:46:30,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 09:46:30,521 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-11-06 09:46:30,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:46:30,534 INFO L225 Difference]: With dead ends: 552 [2021-11-06 09:46:30,534 INFO L226 Difference]: Without dead ends: 271 [2021-11-06 09:46:30,539 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 09:46:30,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-11-06 09:46:30,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2021-11-06 09:46:30,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 258 states have (on average 1.2868217054263567) internal successors, (332), 270 states have internal predecessors, (332), 0 states have call successors, (0), 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 09:46:30,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 332 transitions. [2021-11-06 09:46:30,595 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 332 transitions. Word has length 51 [2021-11-06 09:46:30,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:46:30,596 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 332 transitions. [2021-11-06 09:46:30,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 09:46:30,596 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 332 transitions. [2021-11-06 09:46:30,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-06 09:46:30,598 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:46:30,601 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] [2021-11-06 09:46:30,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 09:46:30,602 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 09:46:30,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:46:30,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1385000845, now seen corresponding path program 1 times [2021-11-06 09:46:30,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:46:30,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998981380] [2021-11-06 09:46:30,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:30,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:46:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:46:30,826 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 09:46:30,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:46:30,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998981380] [2021-11-06 09:46:30,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998981380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:46:30,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:46:30,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 09:46:30,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074315538] [2021-11-06 09:46:30,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 09:46:30,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:46:30,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 09:46:30,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 09:46:30,832 INFO L87 Difference]: Start difference. First operand 271 states and 332 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 09:46:30,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:46:30,876 INFO L93 Difference]: Finished difference Result 529 states and 649 transitions. [2021-11-06 09:46:30,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 09:46:30,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-11-06 09:46:30,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:46:30,877 INFO L225 Difference]: With dead ends: 529 [2021-11-06 09:46:30,878 INFO L226 Difference]: Without dead ends: 272 [2021-11-06 09:46:30,879 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 09:46:30,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-11-06 09:46:30,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2021-11-06 09:46:30,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 259 states have (on average 1.2857142857142858) internal successors, (333), 271 states have internal predecessors, (333), 0 states have call successors, (0), 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 09:46:30,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 333 transitions. [2021-11-06 09:46:30,885 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 333 transitions. Word has length 51 [2021-11-06 09:46:30,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:46:30,885 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 333 transitions. [2021-11-06 09:46:30,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 09:46:30,885 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 333 transitions. [2021-11-06 09:46:30,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-06 09:46:30,887 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:46:30,887 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] [2021-11-06 09:46:30,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 09:46:30,887 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 09:46:30,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:46:30,888 INFO L85 PathProgramCache]: Analyzing trace with hash -543271857, now seen corresponding path program 1 times [2021-11-06 09:46:30,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:46:30,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133859681] [2021-11-06 09:46:30,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:30,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:46:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:46:31,081 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 09:46:31,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:46:31,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133859681] [2021-11-06 09:46:31,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133859681] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:46:31,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:46:31,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 09:46:31,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859679352] [2021-11-06 09:46:31,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 09:46:31,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:46:31,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 09:46:31,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 09:46:31,083 INFO L87 Difference]: Start difference. First operand 272 states and 333 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 09:46:31,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:46:31,491 INFO L93 Difference]: Finished difference Result 512 states and 626 transitions. [2021-11-06 09:46:31,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 09:46:31,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-11-06 09:46:31,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:46:31,494 INFO L225 Difference]: With dead ends: 512 [2021-11-06 09:46:31,495 INFO L226 Difference]: Without dead ends: 272 [2021-11-06 09:46:31,495 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 09:46:31,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-11-06 09:46:31,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2021-11-06 09:46:31,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 259 states have (on average 1.2702702702702702) internal successors, (329), 271 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:31,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 329 transitions. [2021-11-06 09:46:31,500 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 329 transitions. Word has length 51 [2021-11-06 09:46:31,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:46:31,500 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 329 transitions. [2021-11-06 09:46:31,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 09:46:31,500 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 329 transitions. [2021-11-06 09:46:31,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-06 09:46:31,501 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:46:31,501 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 09:46:31,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 09:46:31,501 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 09:46:31,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:46:31,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1050760955, now seen corresponding path program 1 times [2021-11-06 09:46:31,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:46:31,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282250089] [2021-11-06 09:46:31,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:31,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:46:31,580 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 09:46:31,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [878782702] [2021-11-06 09:46:31,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:31,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:46:31,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:46:31,582 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 09:46:31,583 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 09:46:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:46:32,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 2697 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 09:46:32,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 09:46:33,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 09:46:33,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:46:33,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282250089] [2021-11-06 09:46:33,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 09:46:33,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878782702] [2021-11-06 09:46:33,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878782702] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:46:33,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:46:33,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 09:46:33,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035776517] [2021-11-06 09:46:33,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 09:46:33,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:46:33,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 09:46:33,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 09:46:33,038 INFO L87 Difference]: Start difference. First operand 272 states and 329 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:33,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:46:33,647 INFO L93 Difference]: Finished difference Result 438 states and 527 transitions. [2021-11-06 09:46:33,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 09:46:33,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-06 09:46:33,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:46:33,649 INFO L225 Difference]: With dead ends: 438 [2021-11-06 09:46:33,649 INFO L226 Difference]: Without dead ends: 272 [2021-11-06 09:46:33,650 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-06 09:46:33,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-11-06 09:46:33,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2021-11-06 09:46:33,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 259 states have (on average 1.247104247104247) internal successors, (323), 271 states have internal predecessors, (323), 0 states have call successors, (0), 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 09:46:33,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 323 transitions. [2021-11-06 09:46:33,656 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 323 transitions. Word has length 75 [2021-11-06 09:46:33,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:46:33,656 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 323 transitions. [2021-11-06 09:46:33,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:33,656 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 323 transitions. [2021-11-06 09:46:33,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-06 09:46:33,657 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:46:33,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:46:33,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-06 09:46:33,879 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 09:46:33,880 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 09:46:33,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:46:33,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1119345469, now seen corresponding path program 1 times [2021-11-06 09:46:33,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:46:33,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135584035] [2021-11-06 09:46:33,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:33,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:46:33,936 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 09:46:33,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [993624613] [2021-11-06 09:46:33,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:33,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:46:33,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:46:33,937 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 09:46:33,939 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 09:46:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:46:34,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 2887 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-06 09:46:34,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 09:46:35,270 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 09:46:35,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:46:35,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135584035] [2021-11-06 09:46:35,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 09:46:35,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993624613] [2021-11-06 09:46:35,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993624613] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:46:35,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:46:35,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 09:46:35,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886198547] [2021-11-06 09:46:35,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 09:46:35,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:46:35,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 09:46:35,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 09:46:35,273 INFO L87 Difference]: Start difference. First operand 272 states and 323 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 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 09:46:35,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:46:35,470 INFO L93 Difference]: Finished difference Result 711 states and 842 transitions. [2021-11-06 09:46:35,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 09:46:35,471 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2021-11-06 09:46:35,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:46:35,473 INFO L225 Difference]: With dead ends: 711 [2021-11-06 09:46:35,473 INFO L226 Difference]: Without dead ends: 505 [2021-11-06 09:46:35,473 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-06 09:46:35,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2021-11-06 09:46:35,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 296. [2021-11-06 09:46:35,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 283 states have (on average 1.243816254416961) internal successors, (352), 295 states have internal predecessors, (352), 0 states have call successors, (0), 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 09:46:35,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 352 transitions. [2021-11-06 09:46:35,482 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 352 transitions. Word has length 91 [2021-11-06 09:46:35,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:46:35,483 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 352 transitions. [2021-11-06 09:46:35,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 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 09:46:35,484 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 352 transitions. [2021-11-06 09:46:35,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-06 09:46:35,488 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:46:35,489 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:46:35,515 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 09:46:35,703 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 09:46:35,704 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 09:46:35,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:46:35,704 INFO L85 PathProgramCache]: Analyzing trace with hash 819816577, now seen corresponding path program 1 times [2021-11-06 09:46:35,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:46:35,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628171531] [2021-11-06 09:46:35,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:35,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:46:35,769 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 09:46:35,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [428272620] [2021-11-06 09:46:35,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:35,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:46:35,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:46:35,771 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 09:46:35,772 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 09:46:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:46:36,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 2884 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-06 09:46:36,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 09:46:37,187 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 09:46:37,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:46:37,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628171531] [2021-11-06 09:46:37,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 09:46:37,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428272620] [2021-11-06 09:46:37,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428272620] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:46:37,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:46:37,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 09:46:37,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303835340] [2021-11-06 09:46:37,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 09:46:37,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:46:37,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 09:46:37,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 09:46:37,190 INFO L87 Difference]: Start difference. First operand 296 states and 352 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 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 09:46:37,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:46:37,485 INFO L93 Difference]: Finished difference Result 691 states and 816 transitions. [2021-11-06 09:46:37,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 09:46:37,486 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2021-11-06 09:46:37,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:46:37,487 INFO L225 Difference]: With dead ends: 691 [2021-11-06 09:46:37,487 INFO L226 Difference]: Without dead ends: 505 [2021-11-06 09:46:37,488 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-06 09:46:37,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2021-11-06 09:46:37,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 316. [2021-11-06 09:46:37,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 303 states have (on average 1.2409240924092408) internal successors, (376), 315 states have internal predecessors, (376), 0 states have call successors, (0), 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 09:46:37,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 376 transitions. [2021-11-06 09:46:37,504 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 376 transitions. Word has length 91 [2021-11-06 09:46:37,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:46:37,505 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 376 transitions. [2021-11-06 09:46:37,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 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 09:46:37,505 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 376 transitions. [2021-11-06 09:46:37,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-06 09:46:37,508 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:46:37,508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:46:37,535 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 09:46:37,721 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 09:46:37,722 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 09:46:37,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:46:37,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1094576191, now seen corresponding path program 1 times [2021-11-06 09:46:37,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:46:37,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965630598] [2021-11-06 09:46:37,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:37,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:46:37,823 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 09:46:37,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [640990099] [2021-11-06 09:46:37,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:37,824 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:46:37,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:46:37,827 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 09:46:37,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-06 09:46:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:46:38,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 2881 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-06 09:46:38,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 09:46:38,920 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 09:46:38,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:46:38,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965630598] [2021-11-06 09:46:38,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 09:46:38,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640990099] [2021-11-06 09:46:38,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640990099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:46:38,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:46:38,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 09:46:38,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419112181] [2021-11-06 09:46:38,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 09:46:38,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:46:38,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 09:46:38,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 09:46:38,921 INFO L87 Difference]: Start difference. First operand 316 states and 376 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 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 09:46:39,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:46:39,109 INFO L93 Difference]: Finished difference Result 502 states and 594 transitions. [2021-11-06 09:46:39,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 09:46:39,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2021-11-06 09:46:39,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:46:39,111 INFO L225 Difference]: With dead ends: 502 [2021-11-06 09:46:39,111 INFO L226 Difference]: Without dead ends: 272 [2021-11-06 09:46:39,112 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 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 09:46:39,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-11-06 09:46:39,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2021-11-06 09:46:39,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 259 states have (on average 1.2393822393822393) internal successors, (321), 271 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:46:39,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 321 transitions. [2021-11-06 09:46:39,118 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 321 transitions. Word has length 91 [2021-11-06 09:46:39,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:46:39,119 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 321 transitions. [2021-11-06 09:46:39,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 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 09:46:39,119 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 321 transitions. [2021-11-06 09:46:39,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-06 09:46:39,119 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:46:39,119 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:46:39,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-06 09:46:39,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:46:39,330 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 09:46:39,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:46:39,330 INFO L85 PathProgramCache]: Analyzing trace with hash -553423599, now seen corresponding path program 1 times [2021-11-06 09:46:39,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:46:39,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525123353] [2021-11-06 09:46:39,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:39,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:46:39,396 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 09:46:39,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009882064] [2021-11-06 09:46:39,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:46:39,398 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:46:39,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:46:39,399 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 09:46:39,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Killed by 15