./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G --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 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:09:13,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:09:13,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:09:13,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:09:13,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:09:13,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:09:13,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:09:13,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:09:13,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:09:13,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:09:13,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:09:13,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:09:13,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:09:13,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:09:13,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:09:13,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:09:13,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:09:13,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:09:13,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:09:13,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:09:13,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:09:13,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:09:13,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:09:13,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:09:13,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:09:13,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:09:13,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:09:13,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:09:13,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:09:13,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:09:13,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:09:13,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:09:13,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:09:13,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:09:13,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:09:13,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:09:13,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:09:13,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:09:13,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:09:13,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:09:13,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:09:13,325 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 14:09:13,351 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:09:13,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:09:13,352 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:09:13,352 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:09:13,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:09:13,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:09:13,354 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:09:13,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:09:13,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:09:13,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:09:13,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:09:13,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:09:13,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:09:13,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:09:13,356 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:09:13,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:09:13,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:09:13,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:09:13,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:09:13,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:09:13,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:09:13,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:09:13,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:09:13,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:09:13,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:09:13,358 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:09:13,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 14:09:13,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:09:13,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:09:13,361 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 [2021-11-23 14:09:13,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:09:13,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:09:13,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:09:13,705 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:09:13,707 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:09:13,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2021-11-23 14:09:13,791 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/data/7d155eef1/30dedd4865f64a2bb2588ec1311cc29f/FLAG466137992 [2021-11-23 14:09:14,746 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:09:14,747 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2021-11-23 14:09:14,800 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/data/7d155eef1/30dedd4865f64a2bb2588ec1311cc29f/FLAG466137992 [2021-11-23 14:09:15,160 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/data/7d155eef1/30dedd4865f64a2bb2588ec1311cc29f [2021-11-23 14:09:15,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:09:15,164 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:09:15,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:09:15,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:09:15,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:09:15,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:09:15" (1/1) ... [2021-11-23 14:09:15,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e875ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:15, skipping insertion in model container [2021-11-23 14:09:15,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:09:15" (1/1) ... [2021-11-23 14:09:15,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:09:15,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:09:15,562 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2021-11-23 14:09:15,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2021-11-23 14:09:16,421 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 14:09:16,514 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:16,517 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:16,519 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:16,521 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:16,524 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:16,553 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:16,566 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:16,568 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:16,570 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:16,574 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:16,576 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:16,577 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:16,577 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,000 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 14:09:17,002 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 14:09:17,003 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 14:09:17,005 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 14:09:17,007 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 14:09:17,008 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 14:09:17,009 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 14:09:17,010 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 14:09:17,011 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 14:09:17,012 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 14:09:17,253 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,277 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:09:17,393 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:09:17,409 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2021-11-23 14:09:17,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2021-11-23 14:09:17,455 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 14:09:17,476 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,476 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,477 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,478 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,479 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,488 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,489 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,491 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,491 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,493 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,494 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,495 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,495 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,543 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 14:09:17,544 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 14:09:17,545 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 14:09:17,546 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 14:09:17,548 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 14:09:17,549 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 14:09:17,549 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 14:09:17,550 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 14:09:17,551 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 14:09:17,551 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 14:09:17,585 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,592 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 14:09:17,624 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:09:17,860 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:09:17,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:17 WrapperNode [2021-11-23 14:09:17,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:09:17,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:09:17,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:09:17,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:09:17,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:17" (1/1) ... [2021-11-23 14:09:17,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:17" (1/1) ... [2021-11-23 14:09:18,109 INFO L137 Inliner]: procedures = 690, calls = 1715, calls flagged for inlining = 656, calls inlined = 109, statements flattened = 1701 [2021-11-23 14:09:18,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:09:18,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:09:18,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:09:18,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:09:18,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:17" (1/1) ... [2021-11-23 14:09:18,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:17" (1/1) ... [2021-11-23 14:09:18,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:17" (1/1) ... [2021-11-23 14:09:18,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:17" (1/1) ... [2021-11-23 14:09:18,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:17" (1/1) ... [2021-11-23 14:09:18,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:17" (1/1) ... [2021-11-23 14:09:18,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:17" (1/1) ... [2021-11-23 14:09:18,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:09:18,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:09:18,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:09:18,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:09:18,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:17" (1/1) ... [2021-11-23 14:09:18,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:09:18,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:09:18,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:09:18,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:09:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:09:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 14:09:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 14:09:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:09:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 14:09:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:09:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:09:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:09:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 14:09:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 14:09:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 14:09:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:09:18,673 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:09:18,675 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:09:20,883 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:09:20,899 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:09:20,899 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 14:09:20,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:09:20 BoogieIcfgContainer [2021-11-23 14:09:20,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:09:20,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:09:20,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:09:20,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:09:20,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:09:15" (1/3) ... [2021-11-23 14:09:20,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a23a67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:09:20, skipping insertion in model container [2021-11-23 14:09:20,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:17" (2/3) ... [2021-11-23 14:09:20,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a23a67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:09:20, skipping insertion in model container [2021-11-23 14:09:20,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:09:20" (3/3) ... [2021-11-23 14:09:20,911 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_contents_harness.i [2021-11-23 14:09:20,917 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:09:20,917 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-23 14:09:20,974 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:09:20,981 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 [2021-11-23 14:09:20,982 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-23 14:09:21,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 261 states, 244 states have (on average 1.4385245901639345) internal successors, (351), 260 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:21,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 14:09:21,017 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:09:21,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:09:21,018 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-23 14:09:21,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:09:21,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1330632047, now seen corresponding path program 1 times [2021-11-23 14:09:21,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:09:21,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369947139] [2021-11-23 14:09:21,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:21,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:09:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:09:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:21,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:09:21,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369947139] [2021-11-23 14:09:21,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369947139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:09:21,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:09:21,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:09:21,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096761389] [2021-11-23 14:09:21,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:09:21,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 14:09:21,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:09:21,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 14:09:21,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:09:21,775 INFO L87 Difference]: Start difference. First operand has 261 states, 244 states have (on average 1.4385245901639345) internal successors, (351), 260 states have internal predecessors, (351), 0 states have call successors, (0), 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 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:21,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:09:21,848 INFO L93 Difference]: Finished difference Result 518 states and 697 transitions. [2021-11-23 14:09:21,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:09:21,856 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-23 14:09:21,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:09:21,874 INFO L225 Difference]: With dead ends: 518 [2021-11-23 14:09:21,874 INFO L226 Difference]: Without dead ends: 254 [2021-11-23 14:09:21,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:09:21,889 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:09:21,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:09:21,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-23 14:09:21,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2021-11-23 14:09:21,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 238 states have (on average 1.2773109243697478) internal successors, (304), 253 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:21,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 304 transitions. [2021-11-23 14:09:21,981 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 304 transitions. Word has length 62 [2021-11-23 14:09:21,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:09:21,982 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 304 transitions. [2021-11-23 14:09:21,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:21,988 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 304 transitions. [2021-11-23 14:09:21,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 14:09:21,997 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:09:21,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:09:21,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:09:21,998 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-23 14:09:22,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:09:22,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1348565053, now seen corresponding path program 1 times [2021-11-23 14:09:22,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:09:22,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389971318] [2021-11-23 14:09:22,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:22,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:09:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:09:22,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:22,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:09:22,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389971318] [2021-11-23 14:09:22,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389971318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:09:22,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:09:22,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:09:22,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381819181] [2021-11-23 14:09:22,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:09:22,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:09:22,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:09:22,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:09:22,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:09:22,271 INFO L87 Difference]: Start difference. First operand 254 states and 304 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:22,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:09:22,342 INFO L93 Difference]: Finished difference Result 496 states and 595 transitions. [2021-11-23 14:09:22,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:09:22,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-23 14:09:22,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:09:22,345 INFO L225 Difference]: With dead ends: 496 [2021-11-23 14:09:22,345 INFO L226 Difference]: Without dead ends: 256 [2021-11-23 14:09:22,346 INFO L932 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 [2021-11-23 14:09:22,348 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 0 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:09:22,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 597 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:09:22,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-23 14:09:22,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-23 14:09:22,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.275) internal successors, (306), 255 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:22,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 306 transitions. [2021-11-23 14:09:22,364 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 306 transitions. Word has length 62 [2021-11-23 14:09:22,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:09:22,365 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 306 transitions. [2021-11-23 14:09:22,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:22,365 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 306 transitions. [2021-11-23 14:09:22,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 14:09:22,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:09:22,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:09:22,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 14:09:22,368 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-23 14:09:22,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:09:22,369 INFO L85 PathProgramCache]: Analyzing trace with hash 87647803, now seen corresponding path program 1 times [2021-11-23 14:09:22,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:09:22,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771858989] [2021-11-23 14:09:22,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:22,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:09:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:09:22,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:22,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:09:22,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771858989] [2021-11-23 14:09:22,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771858989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:09:22,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:09:22,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 14:09:22,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415509204] [2021-11-23 14:09:22,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:09:22,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:09:22,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:09:22,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:09:22,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:09:22,615 INFO L87 Difference]: Start difference. First operand 256 states and 306 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:24,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:09:24,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:09:24,920 INFO L93 Difference]: Finished difference Result 480 states and 572 transitions. [2021-11-23 14:09:24,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:09:24,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-23 14:09:24,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:09:24,925 INFO L225 Difference]: With dead ends: 480 [2021-11-23 14:09:24,926 INFO L226 Difference]: Without dead ends: 256 [2021-11-23 14:09:24,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:09:24,937 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 351 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-23 14:09:24,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 468 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-23 14:09:24,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-23 14:09:24,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-23 14:09:24,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.2666666666666666) internal successors, (304), 255 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:24,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 304 transitions. [2021-11-23 14:09:24,966 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 304 transitions. Word has length 62 [2021-11-23 14:09:24,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:09:24,967 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 304 transitions. [2021-11-23 14:09:24,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:24,967 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 304 transitions. [2021-11-23 14:09:24,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-23 14:09:24,974 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:09:24,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:09:24,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 14:09:24,976 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-23 14:09:24,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:09:24,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1267963945, now seen corresponding path program 1 times [2021-11-23 14:09:24,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:09:24,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094694026] [2021-11-23 14:09:24,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:24,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:09:25,076 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:09:25,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [423856822] [2021-11-23 14:09:25,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:25,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:09:25,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:09:25,080 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:09:25,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 14:09:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:09:25,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 2292 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 14:09:25,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:09:25,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:25,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:09:25,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:09:25,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094694026] [2021-11-23 14:09:25,969 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 14:09:25,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423856822] [2021-11-23 14:09:25,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423856822] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:09:25,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:09:25,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 14:09:25,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727190702] [2021-11-23 14:09:25,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:09:25,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 14:09:25,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:09:25,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 14:09:25,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:09:25,978 INFO L87 Difference]: Start difference. First operand 256 states and 304 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:26,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:09:26,880 INFO L93 Difference]: Finished difference Result 447 states and 528 transitions. [2021-11-23 14:09:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:09:26,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2021-11-23 14:09:26,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:09:26,883 INFO L225 Difference]: With dead ends: 447 [2021-11-23 14:09:26,883 INFO L226 Difference]: Without dead ends: 256 [2021-11-23 14:09:26,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 14:09:26,885 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 696 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 14:09:26,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 387 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 14:09:26,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-23 14:09:26,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-23 14:09:26,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.2583333333333333) internal successors, (302), 255 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:26,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 302 transitions. [2021-11-23 14:09:26,902 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 302 transitions. Word has length 70 [2021-11-23 14:09:26,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:09:26,902 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 302 transitions. [2021-11-23 14:09:26,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:26,903 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 302 transitions. [2021-11-23 14:09:26,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-23 14:09:26,903 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:09:26,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:09:26,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 14:09:27,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:09:27,114 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-23 14:09:27,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:09:27,114 INFO L85 PathProgramCache]: Analyzing trace with hash -187050949, now seen corresponding path program 1 times [2021-11-23 14:09:27,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:09:27,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91542519] [2021-11-23 14:09:27,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:27,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:09:27,184 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:09:27,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1958093962] [2021-11-23 14:09:27,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:27,185 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:09:27,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:09:27,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:09:27,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 14:09:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:09:27,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 2383 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 14:09:27,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:09:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:28,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:09:28,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:09:28,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91542519] [2021-11-23 14:09:28,047 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 14:09:28,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958093962] [2021-11-23 14:09:28,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958093962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:09:28,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:09:28,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 14:09:28,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189939265] [2021-11-23 14:09:28,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:09:28,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 14:09:28,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:09:28,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 14:09:28,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:09:28,052 INFO L87 Difference]: Start difference. First operand 256 states and 302 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:28,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:09:28,878 INFO L93 Difference]: Finished difference Result 403 states and 474 transitions. [2021-11-23 14:09:28,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:09:28,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2021-11-23 14:09:28,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:09:28,881 INFO L225 Difference]: With dead ends: 403 [2021-11-23 14:09:28,881 INFO L226 Difference]: Without dead ends: 256 [2021-11-23 14:09:28,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-23 14:09:28,883 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 826 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 14:09:28,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [826 Valid, 489 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 14:09:28,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-23 14:09:28,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-23 14:09:28,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.25) internal successors, (300), 255 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:28,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 300 transitions. [2021-11-23 14:09:28,899 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 300 transitions. Word has length 78 [2021-11-23 14:09:28,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:09:28,900 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 300 transitions. [2021-11-23 14:09:28,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:28,900 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 300 transitions. [2021-11-23 14:09:28,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 14:09:28,901 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:09:28,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:09:28,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 14:09:29,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:09:29,115 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-23 14:09:29,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:09:29,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1777573379, now seen corresponding path program 1 times [2021-11-23 14:09:29,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:09:29,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174534007] [2021-11-23 14:09:29,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:29,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:09:29,176 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:09:29,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2115203862] [2021-11-23 14:09:29,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:29,176 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:09:29,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:09:29,177 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:09:29,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 14:09:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:09:29,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 2565 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 14:09:29,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:09:30,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:30,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:09:30,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:09:30,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174534007] [2021-11-23 14:09:30,036 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 14:09:30,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115203862] [2021-11-23 14:09:30,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115203862] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:09:30,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:09:30,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 14:09:30,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361558034] [2021-11-23 14:09:30,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:09:30,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 14:09:30,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:09:30,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 14:09:30,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:09:30,038 INFO L87 Difference]: Start difference. First operand 256 states and 300 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:31,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:09:31,008 INFO L93 Difference]: Finished difference Result 387 states and 450 transitions. [2021-11-23 14:09:31,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:09:31,009 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-11-23 14:09:31,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:09:31,011 INFO L225 Difference]: With dead ends: 387 [2021-11-23 14:09:31,011 INFO L226 Difference]: Without dead ends: 256 [2021-11-23 14:09:31,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-23 14:09:31,013 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 875 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 14:09:31,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [875 Valid, 422 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 14:09:31,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-23 14:09:31,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-23 14:09:31,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.2416666666666667) internal successors, (298), 255 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:31,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 298 transitions. [2021-11-23 14:09:31,026 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 298 transitions. Word has length 94 [2021-11-23 14:09:31,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:09:31,027 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 298 transitions. [2021-11-23 14:09:31,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:31,027 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 298 transitions. [2021-11-23 14:09:31,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-23 14:09:31,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:09:31,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:09:31,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 14:09:31,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-23 14:09:31,239 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-23 14:09:31,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:09:31,240 INFO L85 PathProgramCache]: Analyzing trace with hash 377228519, now seen corresponding path program 1 times [2021-11-23 14:09:31,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:09:31,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974027462] [2021-11-23 14:09:31,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:31,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:09:31,299 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:09:31,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542951519] [2021-11-23 14:09:31,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:31,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:09:31,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:09:31,301 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:09:31,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7728dca1-ba9f-4320-b586-478c1d394ef3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 14:09:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:09:53,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 2656 conjuncts, 332 conjunts are in the unsatisfiable core [2021-11-23 14:09:53,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:09:53,822 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 14:09:53,823 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 1 case distinctions, treesize of input 9 treesize of output 11 [2021-11-23 14:09:54,083 INFO L354 Elim1Store]: treesize reduction 114, result has 17.4 percent of original size [2021-11-23 14:09:54,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 34 treesize of output 45 [2021-11-23 14:09:54,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 41 [2021-11-23 14:09:54,727 INFO L354 Elim1Store]: treesize reduction 86, result has 18.9 percent of original size [2021-11-23 14:09:54,728 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 9 case distinctions, treesize of input 35 treesize of output 45 [2021-11-23 14:09:55,781 INFO L354 Elim1Store]: treesize reduction 238, result has 15.0 percent of original size [2021-11-23 14:09:55,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 48 treesize of output 73 [2021-11-23 14:09:56,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2021-11-23 14:09:58,220 INFO L354 Elim1Store]: treesize reduction 112, result has 28.7 percent of original size [2021-11-23 14:09:58,220 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 181 treesize of output 214 [2021-11-23 14:10:00,702 INFO L354 Elim1Store]: treesize reduction 295, result has 18.7 percent of original size [2021-11-23 14:10:00,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 70 treesize of output 119 [2021-11-23 14:10:03,006 INFO L354 Elim1Store]: treesize reduction 293, result has 19.3 percent of original size [2021-11-23 14:10:03,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 93 treesize of output 144 [2021-11-23 14:10:16,579 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 14:10:16,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 14:10:16,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2021-11-23 14:10:16,615 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 14:10:16,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 3 [2021-11-23 14:10:16,630 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 14:10:16,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 3 [2021-11-23 14:11:06,469 INFO L354 Elim1Store]: treesize reduction 476, result has 12.7 percent of original size [2021-11-23 14:11:06,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 143 treesize of output 189 [2021-11-23 14:11:44,367 INFO L354 Elim1Store]: treesize reduction 43, result has 25.9 percent of original size [2021-11-23 14:11:44,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 161 treesize of output 170 [2021-11-23 14:11:58,787 INFO L354 Elim1Store]: treesize reduction 310, result has 11.4 percent of original size [2021-11-23 14:11:58,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 244 treesize of output 266 [2021-11-23 14:12:06,218 INFO L354 Elim1Store]: treesize reduction 574, result has 12.0 percent of original size [2021-11-23 14:12:06,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 2 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 54 case distinctions, treesize of input 161 treesize of output 214 [2021-11-23 14:12:10,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:12:10,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:12:10,521 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 14:12:10,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:12:10,940 INFO L354 Elim1Store]: treesize reduction 144, result has 21.3 percent of original size [2021-11-23 14:12:10,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 104 treesize of output 132 [2021-11-23 14:22:58,857 INFO L354 Elim1Store]: treesize reduction 368, result has 15.0 percent of original size [2021-11-23 14:22:58,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 43 case distinctions, treesize of input 369 treesize of output 414