./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 43b2ef256b4d1a93a084f86d3d9a0522c1b29c695f7bf9f8438f4c917cc80da0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:10:05,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:10:05,701 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 23:10:05,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:10:05,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:10:05,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:10:05,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:10:05,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:10:05,755 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:10:05,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:10:05,761 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:10:05,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:10:05,762 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:10:05,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:10:05,765 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:10:05,765 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:10:05,766 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:10:05,766 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:10:05,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:10:05,767 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:10:05,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:10:05,768 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:10:05,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:10:05,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:10:05,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:10:05,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:10:05,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:10:05,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:10:05,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:10:05,773 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:10:05,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:10:05,774 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:10:05,775 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:10:05,775 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:10:05,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:10:05,776 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:10:05,776 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43b2ef256b4d1a93a084f86d3d9a0522c1b29c695f7bf9f8438f4c917cc80da0 [2023-11-06 23:10:06,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:10:06,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:10:06,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:10:06,132 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:10:06,133 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:10:06,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2023-11-06 23:10:09,429 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:10:10,222 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:10:10,223 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2023-11-06 23:10:10,286 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/data/2cc748802/5ee87bb6c0c540658966cc68e8594afb/FLAG13f13fc4b [2023-11-06 23:10:10,310 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/data/2cc748802/5ee87bb6c0c540658966cc68e8594afb [2023-11-06 23:10:10,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:10:10,320 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:10:10,324 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:10:10,325 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:10:10,332 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:10:10,333 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:10:10" (1/1) ... [2023-11-06 23:10:10,334 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47774d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:10, skipping insertion in model container [2023-11-06 23:10:10,335 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:10:10" (1/1) ... [2023-11-06 23:10:10,495 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:10:10,819 WARN L240 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_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4493,4506] [2023-11-06 23:10:10,830 WARN L240 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_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4553,4566] [2023-11-06 23:10:12,184 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:12,185 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:12,185 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:12,186 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:12,188 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:12,204 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:12,205 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:12,207 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:12,208 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:12,210 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:12,212 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:12,213 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:12,214 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:12,820 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 23:10:12,822 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 23:10:12,824 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 23:10:12,826 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 23:10:12,828 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 23:10:12,830 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 23:10:12,831 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 23:10:12,833 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 23:10:12,834 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 23:10:12,835 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 23:10:13,155 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,165 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,276 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:10:13,329 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:10:13,347 WARN L240 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_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4493,4506] [2023-11-06 23:10:13,348 WARN L240 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_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4553,4566] [2023-11-06 23:10:13,442 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,448 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,449 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,450 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,452 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,467 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,468 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,471 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,472 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,473 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,474 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,476 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,476 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,563 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 23:10:13,566 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 23:10:13,567 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 23:10:13,569 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 23:10:13,571 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 23:10:13,575 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 23:10:13,576 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 23:10:13,580 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 23:10:13,582 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 23:10:13,583 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 23:10:13,654 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,659 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 23:10:13,667 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7769-7780] [2023-11-06 23:10:13,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:10:13,952 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:10:13,953 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:10:13,957 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:10:13,957 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:10:13,958 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:10:13,958 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:10:13,958 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:10:13,958 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:10:13,959 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:10:13,959 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:10:13,960 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:10:13,960 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:10:13,961 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:10:13,961 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:10:13,962 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:10:13,970 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:10:13,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:13 WrapperNode [2023-11-06 23:10:13,971 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:10:13,973 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:10:13,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:10:13,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:10:13,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:13" (1/1) ... [2023-11-06 23:10:14,125 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:13" (1/1) ... [2023-11-06 23:10:14,262 INFO L138 Inliner]: procedures = 690, calls = 1683, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 659 [2023-11-06 23:10:14,271 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:10:14,272 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:10:14,273 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:10:14,273 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:10:14,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:13" (1/1) ... [2023-11-06 23:10:14,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:13" (1/1) ... [2023-11-06 23:10:14,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:13" (1/1) ... [2023-11-06 23:10:14,305 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:13" (1/1) ... [2023-11-06 23:10:14,351 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:13" (1/1) ... [2023-11-06 23:10:14,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:13" (1/1) ... [2023-11-06 23:10:14,363 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:13" (1/1) ... [2023-11-06 23:10:14,369 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:13" (1/1) ... [2023-11-06 23:10:14,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:10:14,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:10:14,381 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:10:14,381 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:10:14,381 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:13" (1/1) ... [2023-11-06 23:10:14,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:10:14,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:14,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:10:14,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:10:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:10:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-06 23:10:14,476 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-06 23:10:14,476 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-06 23:10:14,477 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-06 23:10:14,477 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-06 23:10:14,477 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-06 23:10:14,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:10:14,478 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-06 23:10:14,478 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-06 23:10:14,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 23:10:14,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 23:10:14,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 23:10:14,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:10:14,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 23:10:14,480 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-06 23:10:14,480 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-06 23:10:14,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:10:14,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:10:14,480 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-06 23:10:14,480 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-06 23:10:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-06 23:10:14,481 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-06 23:10:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-06 23:10:14,481 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-06 23:10:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-06 23:10:14,482 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-06 23:10:14,482 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-06 23:10:14,482 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-06 23:10:14,482 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 23:10:14,483 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 23:10:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-06 23:10:14,483 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-06 23:10:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:10:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 23:10:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 23:10:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-06 23:10:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-06 23:10:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-06 23:10:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-06 23:10:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:10:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-06 23:10:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-06 23:10:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:10:14,952 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:10:14,955 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:10:16,273 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:10:16,292 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:10:16,292 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:10:16,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:10:16 BoogieIcfgContainer [2023-11-06 23:10:16,296 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:10:16,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:10:16,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:10:16,305 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:10:16,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:10:10" (1/3) ... [2023-11-06 23:10:16,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b4ee9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:10:16, skipping insertion in model container [2023-11-06 23:10:16,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:13" (2/3) ... [2023-11-06 23:10:16,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b4ee9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:10:16, skipping insertion in model container [2023-11-06 23:10:16,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:10:16" (3/3) ... [2023-11-06 23:10:16,311 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_back_harness.i [2023-11-06 23:10:16,338 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:10:16,338 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:10:16,437 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:10:16,455 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1faead3e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:10:16,456 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 23:10:16,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 110 states have internal predecessors, (132), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-06 23:10:16,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-06 23:10:16,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:16,497 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:16,497 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:10:16,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:16,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1489749117, now seen corresponding path program 1 times [2023-11-06 23:10:16,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:16,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212448610] [2023-11-06 23:10:16,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:16,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 23:10:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 23:10:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 23:10:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 23:10:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 23:10:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 23:10:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 23:10:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-06 23:10:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-06 23:10:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:10:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-06 23:10:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-06 23:10:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 23:10:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 23:10:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 23:10:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-06 23:10:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 23:10:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-06 23:10:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-06 23:10:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-06 23:10:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:17,939 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-06 23:10:17,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:17,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212448610] [2023-11-06 23:10:17,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212448610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:17,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:17,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:10:17,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199309210] [2023-11-06 23:10:17,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:17,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:10:17,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:18,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:10:18,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:10:18,042 INFO L87 Difference]: Start difference. First operand has 180 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 110 states have internal predecessors, (132), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 23:10:18,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:10:18,889 INFO L93 Difference]: Finished difference Result 374 states and 541 transitions. [2023-11-06 23:10:18,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:10:18,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 124 [2023-11-06 23:10:18,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:10:18,912 INFO L225 Difference]: With dead ends: 374 [2023-11-06 23:10:18,912 INFO L226 Difference]: Without dead ends: 192 [2023-11-06 23:10:18,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:10:18,931 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 117 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:10:18,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 234 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 23:10:18,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-06 23:10:19,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 171. [2023-11-06 23:10:19,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 53 states have call successors, (53), 16 states have call predecessors, (53), 15 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-06 23:10:19,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 223 transitions. [2023-11-06 23:10:19,063 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 223 transitions. Word has length 124 [2023-11-06 23:10:19,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:10:19,065 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 223 transitions. [2023-11-06 23:10:19,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 23:10:19,065 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 223 transitions. [2023-11-06 23:10:19,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-06 23:10:19,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:19,080 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:19,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:10:19,080 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:10:19,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:19,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1640985525, now seen corresponding path program 1 times [2023-11-06 23:10:19,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:19,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122618201] [2023-11-06 23:10:19,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:19,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:19,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 23:10:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:19,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 23:10:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:19,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 23:10:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:19,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 23:10:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:19,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 23:10:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:19,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 23:10:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:19,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 23:10:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:19,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-06 23:10:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:20,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-06 23:10:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:20,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:10:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:20,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-06 23:10:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:20,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-06 23:10:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:20,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 23:10:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:20,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 23:10:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:20,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 23:10:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:20,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-06 23:10:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:20,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 23:10:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:20,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-06 23:10:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:20,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-06 23:10:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:20,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-06 23:10:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:20,198 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2023-11-06 23:10:20,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:20,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122618201] [2023-11-06 23:10:20,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122618201] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:10:20,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481835517] [2023-11-06 23:10:20,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:20,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:20,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:20,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:10:20,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 23:10:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:20,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 2229 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 23:10:20,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:10:20,991 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-11-06 23:10:20,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:10:20,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481835517] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:20,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:10:20,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-11-06 23:10:20,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725715689] [2023-11-06 23:10:20,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:20,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:10:21,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:21,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:10:21,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-06 23:10:21,004 INFO L87 Difference]: Start difference. First operand 171 states and 223 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-06 23:10:21,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:10:21,458 INFO L93 Difference]: Finished difference Result 315 states and 417 transitions. [2023-11-06 23:10:21,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:10:21,459 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 124 [2023-11-06 23:10:21,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:10:21,462 INFO L225 Difference]: With dead ends: 315 [2023-11-06 23:10:21,462 INFO L226 Difference]: Without dead ends: 173 [2023-11-06 23:10:21,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-06 23:10:21,465 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 232 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 23:10:21,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 634 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 23:10:21,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-06 23:10:21,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2023-11-06 23:10:21,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 103 states have (on average 1.1650485436893203) internal successors, (120), 105 states have internal predecessors, (120), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (56), 51 states have call predecessors, (56), 51 states have call successors, (56) [2023-11-06 23:10:21,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 229 transitions. [2023-11-06 23:10:21,494 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 229 transitions. Word has length 124 [2023-11-06 23:10:21,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:10:21,494 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 229 transitions. [2023-11-06 23:10:21,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-06 23:10:21,495 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 229 transitions. [2023-11-06 23:10:21,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-06 23:10:21,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:21,498 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:21,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 23:10:21,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-06 23:10:21,709 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:10:21,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:21,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1623021021, now seen corresponding path program 1 times [2023-11-06 23:10:21,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:21,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644675733] [2023-11-06 23:10:21,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:21,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:21,813 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:10:21,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [33177604] [2023-11-06 23:10:21,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:21,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:21,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:21,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:10:21,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 23:10:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:22,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 2511 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 23:10:22,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:10:22,670 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-11-06 23:10:22,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:10:22,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:22,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644675733] [2023-11-06 23:10:22,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:10:22,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33177604] [2023-11-06 23:10:22,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33177604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:22,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:22,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 23:10:22,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525225689] [2023-11-06 23:10:22,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:22,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 23:10:22,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:22,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 23:10:22,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:10:22,678 INFO L87 Difference]: Start difference. First operand 173 states and 229 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-06 23:10:23,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:10:23,127 INFO L93 Difference]: Finished difference Result 283 states and 374 transitions. [2023-11-06 23:10:23,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:10:23,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 154 [2023-11-06 23:10:23,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:10:23,131 INFO L225 Difference]: With dead ends: 283 [2023-11-06 23:10:23,131 INFO L226 Difference]: Without dead ends: 173 [2023-11-06 23:10:23,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:10:23,133 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 236 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 23:10:23,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 785 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 23:10:23,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-06 23:10:23,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2023-11-06 23:10:23,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 103 states have (on average 1.1650485436893203) internal successors, (120), 105 states have internal predecessors, (120), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (53), 51 states have call predecessors, (53), 51 states have call successors, (53) [2023-11-06 23:10:23,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 226 transitions. [2023-11-06 23:10:23,161 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 226 transitions. Word has length 154 [2023-11-06 23:10:23,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:10:23,162 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 226 transitions. [2023-11-06 23:10:23,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-06 23:10:23,162 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 226 transitions. [2023-11-06 23:10:23,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-06 23:10:23,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:23,165 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:23,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 23:10:23,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:23,377 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:10:23,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:23,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2016135159, now seen corresponding path program 2 times [2023-11-06 23:10:23,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:23,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455464109] [2023-11-06 23:10:23,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:23,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:23,493 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:10:23,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [998334145] [2023-11-06 23:10:23,493 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 23:10:23,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:23,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:23,495 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:10:23,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 23:10:24,218 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 23:10:24,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:10:24,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 2652 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 23:10:24,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:10:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-11-06 23:10:24,422 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:10:24,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:24,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455464109] [2023-11-06 23:10:24,422 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:10:24,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998334145] [2023-11-06 23:10:24,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998334145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:24,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:24,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 23:10:24,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856430192] [2023-11-06 23:10:24,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:24,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 23:10:24,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:24,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 23:10:24,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-06 23:10:24,426 INFO L87 Difference]: Start difference. First operand 173 states and 226 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 5 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-06 23:10:25,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:10:25,002 INFO L93 Difference]: Finished difference Result 277 states and 361 transitions. [2023-11-06 23:10:25,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 23:10:25,002 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 5 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) Word has length 169 [2023-11-06 23:10:25,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:10:25,005 INFO L225 Difference]: With dead ends: 277 [2023-11-06 23:10:25,005 INFO L226 Difference]: Without dead ends: 171 [2023-11-06 23:10:25,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-11-06 23:10:25,007 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 236 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 23:10:25,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1071 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 23:10:25,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-11-06 23:10:25,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2023-11-06 23:10:25,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 102 states have (on average 1.1568627450980393) internal successors, (118), 103 states have internal predecessors, (118), 53 states have call successors, (53), 16 states have call predecessors, (53), 15 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-06 23:10:25,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 222 transitions. [2023-11-06 23:10:25,030 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 222 transitions. Word has length 169 [2023-11-06 23:10:25,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:10:25,031 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 222 transitions. [2023-11-06 23:10:25,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 5 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-06 23:10:25,032 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 222 transitions. [2023-11-06 23:10:25,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-06 23:10:25,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:25,035 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:25,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-06 23:10:25,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:25,247 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:10:25,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:25,247 INFO L85 PathProgramCache]: Analyzing trace with hash -216305753, now seen corresponding path program 1 times [2023-11-06 23:10:25,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:25,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727522676] [2023-11-06 23:10:25,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:25,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:25,352 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:10:25,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [33241753] [2023-11-06 23:10:25,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:25,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:25,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:25,354 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:10:25,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 23:10:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:26,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 2934 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-06 23:10:26,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:10:26,303 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-06 23:10:26,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:10:26,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:26,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727522676] [2023-11-06 23:10:26,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:10:26,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33241753] [2023-11-06 23:10:26,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33241753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:26,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:26,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 23:10:26,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120883724] [2023-11-06 23:10:26,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:26,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 23:10:26,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:26,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 23:10:26,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:10:26,307 INFO L87 Difference]: Start difference. First operand 171 states and 222 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-06 23:10:26,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:10:26,488 INFO L93 Difference]: Finished difference Result 335 states and 445 transitions. [2023-11-06 23:10:26,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 23:10:26,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 199 [2023-11-06 23:10:26,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:10:26,495 INFO L225 Difference]: With dead ends: 335 [2023-11-06 23:10:26,496 INFO L226 Difference]: Without dead ends: 230 [2023-11-06 23:10:26,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:10:26,498 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 39 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:10:26,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 1640 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:10:26,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-11-06 23:10:26,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 190. [2023-11-06 23:10:26,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 114 states have (on average 1.1578947368421053) internal successors, (132), 115 states have internal predecessors, (132), 59 states have call successors, (59), 16 states have call predecessors, (59), 16 states have return successors, (58), 58 states have call predecessors, (58), 57 states have call successors, (58) [2023-11-06 23:10:26,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 249 transitions. [2023-11-06 23:10:26,542 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 249 transitions. Word has length 199 [2023-11-06 23:10:26,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:10:26,544 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 249 transitions. [2023-11-06 23:10:26,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-06 23:10:26,545 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 249 transitions. [2023-11-06 23:10:26,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-06 23:10:26,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:26,550 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:26,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 23:10:26,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:26,765 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:10:26,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:26,766 INFO L85 PathProgramCache]: Analyzing trace with hash -948273179, now seen corresponding path program 1 times [2023-11-06 23:10:26,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:26,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881482737] [2023-11-06 23:10:26,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:26,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:26,920 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:10:26,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [820309497] [2023-11-06 23:10:26,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:26,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:26,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:26,924 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:10:26,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 23:10:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:27,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 2931 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 23:10:27,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:10:27,778 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-06 23:10:27,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:10:27,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:27,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881482737] [2023-11-06 23:10:27,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:10:27,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820309497] [2023-11-06 23:10:27,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820309497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:27,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:27,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:10:27,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968213777] [2023-11-06 23:10:27,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:27,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:10:27,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:27,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:10:27,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:10:27,782 INFO L87 Difference]: Start difference. First operand 190 states and 249 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-06 23:10:27,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:10:27,958 INFO L93 Difference]: Finished difference Result 345 states and 460 transitions. [2023-11-06 23:10:27,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:10:27,959 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 199 [2023-11-06 23:10:27,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:10:27,962 INFO L225 Difference]: With dead ends: 345 [2023-11-06 23:10:27,962 INFO L226 Difference]: Without dead ends: 234 [2023-11-06 23:10:27,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-06 23:10:27,963 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 35 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:10:27,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1133 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:10:27,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-11-06 23:10:27,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 196. [2023-11-06 23:10:27,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 117 states have (on average 1.1452991452991452) internal successors, (134), 118 states have internal predecessors, (134), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (61), 61 states have call predecessors, (61), 60 states have call successors, (61) [2023-11-06 23:10:27,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 257 transitions. [2023-11-06 23:10:27,989 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 257 transitions. Word has length 199 [2023-11-06 23:10:27,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:10:27,989 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 257 transitions. [2023-11-06 23:10:27,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-06 23:10:27,990 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 257 transitions. [2023-11-06 23:10:27,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-06 23:10:27,993 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:27,994 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:28,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 23:10:28,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 23:10:28,214 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:10:28,214 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:28,214 INFO L85 PathProgramCache]: Analyzing trace with hash 82767719, now seen corresponding path program 1 times [2023-11-06 23:10:28,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:28,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143048082] [2023-11-06 23:10:28,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:28,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:28,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:10:28,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [322225436] [2023-11-06 23:10:28,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:28,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:28,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:28,331 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:10:28,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 23:10:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:29,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 2928 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-06 23:10:29,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:10:29,169 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 23:10:29,169 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:10:29,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:29,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143048082] [2023-11-06 23:10:29,170 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:10:29,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322225436] [2023-11-06 23:10:29,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322225436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:29,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:29,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:10:29,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809994850] [2023-11-06 23:10:29,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:29,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:10:29,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:29,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:10:29,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:10:29,174 INFO L87 Difference]: Start difference. First operand 196 states and 257 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-06 23:10:29,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:10:29,334 INFO L93 Difference]: Finished difference Result 301 states and 391 transitions. [2023-11-06 23:10:29,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:10:29,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 199 [2023-11-06 23:10:29,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:10:29,337 INFO L225 Difference]: With dead ends: 301 [2023-11-06 23:10:29,337 INFO L226 Difference]: Without dead ends: 171 [2023-11-06 23:10:29,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:10:29,339 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 2 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:10:29,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 781 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:10:29,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-11-06 23:10:29,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2023-11-06 23:10:29,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 102 states have (on average 1.1274509803921569) internal successors, (115), 103 states have internal predecessors, (115), 53 states have call successors, (53), 16 states have call predecessors, (53), 15 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-06 23:10:29,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 219 transitions. [2023-11-06 23:10:29,371 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 219 transitions. Word has length 199 [2023-11-06 23:10:29,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:10:29,372 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 219 transitions. [2023-11-06 23:10:29,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-06 23:10:29,372 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 219 transitions. [2023-11-06 23:10:29,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-11-06 23:10:29,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:29,377 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:29,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 23:10:29,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-06 23:10:29,585 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:10:29,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:29,585 INFO L85 PathProgramCache]: Analyzing trace with hash -32665988, now seen corresponding path program 1 times [2023-11-06 23:10:29,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:29,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465636023] [2023-11-06 23:10:29,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:29,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:29,702 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:10:29,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [567503864] [2023-11-06 23:10:29,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:29,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:29,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:29,704 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:10:29,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adfd209-8807-4a3b-bb98-f6ab7ecb41fe/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 23:10:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:31,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 2969 conjuncts, 372 conjunts are in the unsatisfiable core [2023-11-06 23:10:31,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:10:31,269 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:10:31,448 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-06 23:10:31,484 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-06 23:10:31,716 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-06 23:10:32,372 INFO L322 Elim1Store]: treesize reduction 146, result has 31.5 percent of original size [2023-11-06 23:10:32,372 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 77 treesize of output 152 [2023-11-06 23:10:33,338 INFO L322 Elim1Store]: treesize reduction 32, result has 36.0 percent of original size [2023-11-06 23:10:33,339 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 29 [2023-11-06 23:10:33,384 INFO L322 Elim1Store]: treesize reduction 118, result has 0.8 percent of original size [2023-11-06 23:10:33,385 INFO L351 Elim1Store]: Elim1 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 41 treesize of output 1 [2023-11-06 23:10:33,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:33,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:33,412 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 23:10:33,427 INFO L322 Elim1Store]: treesize reduction 98, result has 1.0 percent of original size [2023-11-06 23:10:33,427 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 37 treesize of output 1 [2023-11-06 23:10:33,444 INFO L322 Elim1Store]: treesize reduction 49, result has 2.0 percent of original size [2023-11-06 23:10:33,445 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 1 [2023-11-06 23:10:34,115 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 23:10:34,115 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2023-11-06 23:10:46,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:46,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:46,727 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 23:10:46,728 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2023-11-06 23:10:46,924 INFO L322 Elim1Store]: treesize reduction 106, result has 23.2 percent of original size [2023-11-06 23:10:46,925 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 34 treesize of output 53 [2023-11-06 23:11:14,339 INFO L322 Elim1Store]: treesize reduction 351, result has 25.8 percent of original size [2023-11-06 23:11:14,339 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 29 case distinctions, treesize of input 104 treesize of output 228 [2023-11-06 23:11:14,517 INFO L322 Elim1Store]: treesize reduction 69, result has 25.8 percent of original size [2023-11-06 23:11:14,517 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 106 [2023-11-06 23:11:27,541 INFO L322 Elim1Store]: treesize reduction 232, result has 19.7 percent of original size [2023-11-06 23:11:27,541 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 159 treesize of output 254 [2023-11-06 23:11:32,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:32,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:33,047 INFO L322 Elim1Store]: treesize reduction 125, result has 10.1 percent of original size [2023-11-06 23:11:33,047 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 568 treesize of output 489 [2023-11-06 23:11:34,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:34,546 INFO L322 Elim1Store]: treesize reduction 47, result has 2.1 percent of original size [2023-11-06 23:11:34,547 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 47 [2023-11-06 23:11:34,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:34,615 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 11 [2023-11-06 23:11:34,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:34,680 INFO L322 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2023-11-06 23:11:34,681 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 47 [2023-11-06 23:11:34,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:34,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:34,829 INFO L322 Elim1Store]: treesize reduction 74, result has 10.8 percent of original size [2023-11-06 23:11:34,830 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 96 treesize of output 81 [2023-11-06 23:11:35,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:35,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:35,249 INFO L322 Elim1Store]: treesize reduction 56, result has 28.2 percent of original size [2023-11-06 23:11:35,249 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 146 treesize of output 152 [2023-11-06 23:11:35,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:35,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:35,397 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-06 23:11:35,397 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 52 [2023-11-06 23:11:35,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:35,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:35,538 INFO L322 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2023-11-06 23:11:35,539 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 76 [2023-11-06 23:11:35,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:35,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:35,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:35,829 INFO L322 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2023-11-06 23:11:35,829 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 141 treesize of output 127 [2023-11-06 23:11:36,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:36,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:36,137 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 88 [2023-11-06 23:11:36,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:36,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:36,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:36,347 INFO L322 Elim1Store]: treesize reduction 68, result has 11.7 percent of original size [2023-11-06 23:11:36,347 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 11 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 210 treesize of output 193 [2023-11-06 23:11:36,688 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-11-06 23:11:43,103 WARN L293 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 225 DAG size of output: 70 (called from [L 319] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-06 23:11:43,104 INFO L322 Elim1Store]: treesize reduction 681, result has 16.0 percent of original size [2023-11-06 23:11:43,105 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 10 new quantified variables, introduced 34 case distinctions, treesize of input 329 treesize of output 702 [2023-11-06 23:12:16,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:16,662 INFO L322 Elim1Store]: treesize reduction 36, result has 18.2 percent of original size [2023-11-06 23:12:16,662 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:16,866 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:16,867 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:17,288 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:17,289 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:17,575 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:17,575 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:17,772 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:17,772 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:18,299 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:18,300 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:18,567 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:18,567 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:18,810 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:18,811 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:19,072 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:19,073 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:19,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:19,517 INFO L322 Elim1Store]: treesize reduction 36, result has 18.2 percent of original size [2023-11-06 23:12:19,517 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:19,715 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:19,715 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:20,039 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:20,040 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:20,554 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:20,555 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:20,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:20,791 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:20,850 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:20,850 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:21,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:21,117 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:21,383 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:21,383 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:21,594 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:21,595 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:21,838 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:21,839 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:22,140 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:22,140 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:22,414 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:22,415 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:22,684 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:22,684 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:22,910 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:22,910 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:23,177 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:23,178 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:23,685 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 23:12:23,732 INFO L322 Elim1Store]: treesize reduction 86, result has 1.1 percent of original size [2023-11-06 23:12:23,732 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 51 treesize of output 34 [2023-11-06 23:12:24,153 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 23:12:24,207 INFO L322 Elim1Store]: treesize reduction 86, result has 1.1 percent of original size [2023-11-06 23:12:24,207 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 51 treesize of output 34 [2023-11-06 23:12:24,290 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 23:12:24,325 INFO L322 Elim1Store]: treesize reduction 86, result has 1.1 percent of original size [2023-11-06 23:12:24,326 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 51 treesize of output 34 [2023-11-06 23:12:24,847 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 23:12:24,883 INFO L322 Elim1Store]: treesize reduction 86, result has 1.1 percent of original size [2023-11-06 23:12:24,883 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 51 treesize of output 34 [2023-11-06 23:12:25,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:25,082 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 23:12:25,128 INFO L322 Elim1Store]: treesize reduction 74, result has 1.3 percent of original size [2023-11-06 23:12:25,128 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 51 treesize of output 34 [2023-11-06 23:12:25,443 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 23:12:25,486 INFO L322 Elim1Store]: treesize reduction 86, result has 1.1 percent of original size [2023-11-06 23:12:25,486 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 51 treesize of output 34 [2023-11-06 23:12:36,827 INFO L322 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2023-11-06 23:12:36,828 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 30 [2023-11-06 23:12:36,958 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:36,958 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:37,201 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:37,202 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:37,721 INFO L322 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2023-11-06 23:12:37,721 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 30 [2023-11-06 23:12:37,941 INFO L322 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2023-11-06 23:12:37,941 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 30 [2023-11-06 23:12:38,080 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:38,080 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:38,319 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:38,319 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:38,701 INFO L322 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2023-11-06 23:12:38,701 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 30 [2023-11-06 23:12:38,994 INFO L322 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2023-11-06 23:12:38,994 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 30 [2023-11-06 23:12:39,282 INFO L322 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2023-11-06 23:12:39,282 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 30 [2023-11-06 23:12:39,431 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:39,431 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:39,533 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:39,534 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:39,815 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:39,816 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:40,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:40,261 INFO L322 Elim1Store]: treesize reduction 36, result has 18.2 percent of original size [2023-11-06 23:12:40,261 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:40,603 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:40,604 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:40,712 INFO L322 Elim1Store]: treesize reduction 63, result has 1.6 percent of original size [2023-11-06 23:12:40,712 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 14 [2023-11-06 23:12:40,999 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:41,000 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:41,402 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:41,402 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:41,714 INFO L322 Elim1Store]: treesize reduction 56, result has 12.5 percent of original size [2023-11-06 23:12:41,715 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 22 [2023-11-06 23:12:42,093 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:42,093 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:42,273 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:42,273 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:42,491 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:42,491 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:42,780 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:42,780 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:42,900 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:42,901 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:43,521 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:43,521 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:43,886 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:43,886 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:44,164 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:44,164 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:44,371 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:44,371 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:44,645 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:44,646 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:44,859 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:44,859 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:45,175 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:45,175 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:45,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:45,407 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:45,539 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:45,539 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:45,862 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:45,862 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:46,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:46,186 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:46,293 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:46,294 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11 [2023-11-06 23:12:46,550 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-11-06 23:12:46,597 INFO L322 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-06 23:12:46,598 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 11