./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_array_list_copy_harness_negated.i --full-output --preprocessor.use.memory.slicer true --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/aws-c-common/aws_array_list_copy_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 40c03b884ddbc3cb1e032cd6f8f52748216dc2b56f8e56ff0fe620c91f6aac52 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 06:36:06,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 06:36:06,132 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 06:36:06,138 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 06:36:06,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 06:36:06,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 06:36:06,171 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 06:36:06,172 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 06:36:06,172 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 06:36:06,173 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 06:36:06,173 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 06:36:06,173 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 06:36:06,174 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 06:36:06,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 06:36:06,175 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 06:36:06,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 06:36:06,175 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 06:36:06,176 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 06:36:06,176 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 06:36:06,176 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 06:36:06,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 06:36:06,178 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 06:36:06,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 06:36:06,179 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 06:36:06,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 06:36:06,180 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 06:36:06,180 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 06:36:06,180 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 06:36:06,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 06:36:06,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 06:36:06,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 06:36:06,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 06:36:06,182 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 06:36:06,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 06:36:06,183 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 06:36:06,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 06:36:06,183 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 06:36:06,183 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 06:36:06,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 06:36:06,184 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40c03b884ddbc3cb1e032cd6f8f52748216dc2b56f8e56ff0fe620c91f6aac52 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 06:36:06,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 06:36:06,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 06:36:06,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 06:36:06,518 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 06:36:06,518 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 06:36:06,519 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_array_list_copy_harness_negated.i [2023-11-23 06:36:07,753 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 06:36:08,228 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 06:36:08,228 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_copy_harness_negated.i [2023-11-23 06:36:08,271 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98e5f4d8e/7c9b1ed66bfe4bb8a7c26b2336a9d34a/FLAG242168cf0 [2023-11-23 06:36:08,285 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98e5f4d8e/7c9b1ed66bfe4bb8a7c26b2336a9d34a [2023-11-23 06:36:08,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 06:36:08,288 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 06:36:08,289 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 06:36:08,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 06:36:08,294 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 06:36:08,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:36:08" (1/1) ... [2023-11-23 06:36:08,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60951957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:08, skipping insertion in model container [2023-11-23 06:36:08,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:36:08" (1/1) ... [2023-11-23 06:36:08,437 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 06:36:08,717 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_copy_harness_negated.i[4493,4506] [2023-11-23 06:36:08,728 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_copy_harness_negated.i[4553,4566] [2023-11-23 06:36:09,372 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,373 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,373 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,376 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,391 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,391 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,393 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,393 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,395 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,395 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,396 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,396 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,661 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 06:36:09,663 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 06:36:09,664 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 06:36:09,675 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 06:36:09,677 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 06:36:09,677 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 06:36:09,678 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 06:36:09,678 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 06:36:09,679 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 06:36:09,679 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 06:36:09,772 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,773 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,777 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,789 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 06:36:09,900 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 06:36:09,920 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_copy_harness_negated.i[4493,4506] [2023-11-23 06:36:09,921 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_copy_harness_negated.i[4553,4566] [2023-11-23 06:36:09,985 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,985 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,985 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,986 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,986 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,991 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,992 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,993 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,993 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,994 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,994 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,995 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:09,995 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:10,078 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 06:36:10,080 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 06:36:10,080 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 06:36:10,082 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 06:36:10,083 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 06:36:10,083 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 06:36:10,084 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 06:36:10,095 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 06:36:10,095 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 06:36:10,096 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 06:36:10,167 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:10,167 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:10,168 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:10,172 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:36:10,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7743-7754] [2023-11-23 06:36:10,196 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 06:36:10,340 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:36:10,340 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:36:10,341 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:36:10,341 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:36:10,341 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:36:10,342 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:36:10,342 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:36:10,342 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:36:10,343 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:36:10,343 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:36:10,343 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:36:10,343 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:36:10,343 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:36:10,343 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:36:10,343 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:36:10,351 INFO L206 MainTranslator]: Completed translation [2023-11-23 06:36:10,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:10 WrapperNode [2023-11-23 06:36:10,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 06:36:10,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 06:36:10,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 06:36:10,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 06:36:10,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:10" (1/1) ... [2023-11-23 06:36:10,423 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:10" (1/1) ... [2023-11-23 06:36:10,498 INFO L138 Inliner]: procedures = 690, calls = 1674, calls flagged for inlining = 52, calls inlined = 7, statements flattened = 696 [2023-11-23 06:36:10,498 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 06:36:10,499 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 06:36:10,499 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 06:36:10,499 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 06:36:10,516 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:10" (1/1) ... [2023-11-23 06:36:10,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:10" (1/1) ... [2023-11-23 06:36:10,537 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:10" (1/1) ... [2023-11-23 06:36:10,625 INFO L188 MemorySlicer]: Split 304 memory accesses to 6 slices as follows [2, 236, 9, 7, 47, 3]. 78 percent of accesses are in the largest equivalence class. The 247 initializations are split as follows [2, 236, 1, 5, 0, 3]. The 9 writes are split as follows [0, 0, 1, 1, 7, 0]. [2023-11-23 06:36:10,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:10" (1/1) ... [2023-11-23 06:36:10,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:10" (1/1) ... [2023-11-23 06:36:10,668 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:10" (1/1) ... [2023-11-23 06:36:10,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:10" (1/1) ... [2023-11-23 06:36:10,693 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:10" (1/1) ... [2023-11-23 06:36:10,706 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:10" (1/1) ... [2023-11-23 06:36:10,718 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 06:36:10,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 06:36:10,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 06:36:10,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 06:36:10,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:10" (1/1) ... [2023-11-23 06:36:10,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 06:36:10,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:36:10,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 06:36:10,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 06:36:10,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 06:36:10,811 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 06:36:10,812 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 06:36:10,812 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 06:36:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 06:36:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 06:36:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 06:36:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-23 06:36:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-23 06:36:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 06:36:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 06:36:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 06:36:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 06:36:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 06:36:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 06:36:10,814 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 06:36:10,814 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 06:36:10,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 06:36:10,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 06:36:10,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 06:36:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 06:36:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 06:36:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 06:36:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 06:36:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 06:36:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 06:36:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 06:36:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 06:36:10,817 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 06:36:10,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 06:36:10,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 06:36:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 06:36:10,818 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 06:36:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 06:36:10,818 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 06:36:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 06:36:10,818 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 06:36:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-23 06:36:10,819 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-23 06:36:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 06:36:10,819 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 06:36:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 06:36:10,819 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 06:36:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-23 06:36:10,820 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-23 06:36:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 06:36:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 06:36:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 06:36:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 06:36:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 06:36:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 06:36:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 06:36:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 06:36:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 06:36:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 06:36:10,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 06:36:10,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 06:36:10,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 06:36:10,822 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 06:36:10,823 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 06:36:10,823 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 06:36:10,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 06:36:10,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 06:36:10,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 06:36:10,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 06:36:10,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 06:36:10,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 06:36:10,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 06:36:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 06:36:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 06:36:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 06:36:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 06:36:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 06:36:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 06:36:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 06:36:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 06:36:11,168 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 06:36:11,171 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 06:36:11,882 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 06:36:12,017 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 06:36:12,017 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 06:36:12,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:36:12 BoogieIcfgContainer [2023-11-23 06:36:12,019 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 06:36:12,020 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 06:36:12,020 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 06:36:12,023 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 06:36:12,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:36:08" (1/3) ... [2023-11-23 06:36:12,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326bf7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:36:12, skipping insertion in model container [2023-11-23 06:36:12,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:36:10" (2/3) ... [2023-11-23 06:36:12,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326bf7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:36:12, skipping insertion in model container [2023-11-23 06:36:12,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:36:12" (3/3) ... [2023-11-23 06:36:12,034 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_copy_harness_negated.i [2023-11-23 06:36:12,050 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 06:36:12,050 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 06:36:12,110 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 06:36:12,120 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=LoopHeads, 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;@9273339, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 06:36:12,120 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 06:36:12,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 191 states, 101 states have (on average 1.2178217821782178) internal successors, (123), 102 states have internal predecessors, (123), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2023-11-23 06:36:12,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-23 06:36:12,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:36:12,140 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 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] [2023-11-23 06:36:12,141 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:36:12,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:36:12,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1350258042, now seen corresponding path program 1 times [2023-11-23 06:36:12,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:36:12,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138029031] [2023-11-23 06:36:12,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:12,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:36:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:36:12,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:36:12,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138029031] [2023-11-23 06:36:12,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 06:36:12,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43392269] [2023-11-23 06:36:12,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:12,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:12,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:36:12,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:36:12,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 06:36:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:36:13,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 06:36:13,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:36:13,283 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-11-23 06:36:13,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:36:13,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43392269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:36:13,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:36:13,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 06:36:13,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941318956] [2023-11-23 06:36:13,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:36:13,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 06:36:13,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:36:13,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 06:36:13,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 06:36:13,315 INFO L87 Difference]: Start difference. First operand has 191 states, 101 states have (on average 1.2178217821782178) internal successors, (123), 102 states have internal predecessors, (123), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 06:36:13,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:36:13,481 INFO L93 Difference]: Finished difference Result 379 states and 568 transitions. [2023-11-23 06:36:13,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 06:36:13,483 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 138 [2023-11-23 06:36:13,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:36:13,492 INFO L225 Difference]: With dead ends: 379 [2023-11-23 06:36:13,493 INFO L226 Difference]: Without dead ends: 189 [2023-11-23 06:36:13,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 06:36:13,501 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 06:36:13,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 248 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 06:36:13,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-11-23 06:36:13,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2023-11-23 06:36:13,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 100 states have (on average 1.2) internal successors, (120), 101 states have internal predecessors, (120), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-23 06:36:13,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 261 transitions. [2023-11-23 06:36:13,553 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 261 transitions. Word has length 138 [2023-11-23 06:36:13,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:36:13,554 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 261 transitions. [2023-11-23 06:36:13,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 06:36:13,555 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 261 transitions. [2023-11-23 06:36:13,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-23 06:36:13,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:36:13,558 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 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] [2023-11-23 06:36:13,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 06:36:13,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 06:36:13,777 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:36:13,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:36:13,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2042562890, now seen corresponding path program 1 times [2023-11-23 06:36:13,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:36:13,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786788987] [2023-11-23 06:36:13,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:13,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:36:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:36:13,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:36:13,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786788987] [2023-11-23 06:36:13,976 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 06:36:13,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098192841] [2023-11-23 06:36:13,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:13,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:13,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:36:13,978 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:36:13,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 06:36:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:36:14,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 06:36:14,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:36:14,581 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-23 06:36:14,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:36:14,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098192841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:36:14,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:36:14,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 06:36:14,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272808898] [2023-11-23 06:36:14,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:36:14,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 06:36:14,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:36:14,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 06:36:14,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 06:36:14,593 INFO L87 Difference]: Start difference. First operand 189 states and 261 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 06:36:14,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:36:14,854 INFO L93 Difference]: Finished difference Result 374 states and 518 transitions. [2023-11-23 06:36:14,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 06:36:14,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 138 [2023-11-23 06:36:14,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:36:14,858 INFO L225 Difference]: With dead ends: 374 [2023-11-23 06:36:14,858 INFO L226 Difference]: Without dead ends: 190 [2023-11-23 06:36:14,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 06:36:14,861 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 0 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 06:36:14,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 488 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 06:36:14,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-23 06:36:14,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2023-11-23 06:36:14,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 101 states have (on average 1.198019801980198) internal successors, (121), 102 states have internal predecessors, (121), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-23 06:36:14,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 262 transitions. [2023-11-23 06:36:14,880 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 262 transitions. Word has length 138 [2023-11-23 06:36:14,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:36:14,880 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 262 transitions. [2023-11-23 06:36:14,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 06:36:14,881 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 262 transitions. [2023-11-23 06:36:14,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-23 06:36:14,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:36:14,883 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 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] [2023-11-23 06:36:14,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 06:36:15,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-23 06:36:15,101 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:36:15,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:36:15,101 INFO L85 PathProgramCache]: Analyzing trace with hash 595157966, now seen corresponding path program 1 times [2023-11-23 06:36:15,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:36:15,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054847718] [2023-11-23 06:36:15,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:15,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:36:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:36:15,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:36:15,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054847718] [2023-11-23 06:36:15,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 06:36:15,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342940885] [2023-11-23 06:36:15,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:15,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:15,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:36:15,284 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:36:15,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 06:36:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:36:15,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 2651 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 06:36:15,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:36:15,905 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2023-11-23 06:36:15,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:36:15,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342940885] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:36:15,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:36:15,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 06:36:15,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26001446] [2023-11-23 06:36:15,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:36:15,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 06:36:15,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:36:15,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 06:36:15,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 06:36:15,909 INFO L87 Difference]: Start difference. First operand 190 states and 262 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-23 06:36:16,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:36:16,627 INFO L93 Difference]: Finished difference Result 376 states and 529 transitions. [2023-11-23 06:36:16,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 06:36:16,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 138 [2023-11-23 06:36:16,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:36:16,636 INFO L225 Difference]: With dead ends: 376 [2023-11-23 06:36:16,636 INFO L226 Difference]: Without dead ends: 192 [2023-11-23 06:36:16,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 06:36:16,638 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 58 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 06:36:16,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 771 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 06:36:16,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-23 06:36:16,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-11-23 06:36:16,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 102 states have (on average 1.196078431372549) internal successors, (122), 104 states have internal predecessors, (122), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (82), 70 states have call predecessors, (82), 70 states have call successors, (82) [2023-11-23 06:36:16,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 275 transitions. [2023-11-23 06:36:16,659 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 275 transitions. Word has length 138 [2023-11-23 06:36:16,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:36:16,660 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 275 transitions. [2023-11-23 06:36:16,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-23 06:36:16,660 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 275 transitions. [2023-11-23 06:36:16,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-23 06:36:16,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:36:16,665 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 2, 2, 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] [2023-11-23 06:36:16,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 06:36:16,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:16,868 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:36:16,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:36:16,869 INFO L85 PathProgramCache]: Analyzing trace with hash 881858080, now seen corresponding path program 1 times [2023-11-23 06:36:16,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:36:16,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851188059] [2023-11-23 06:36:16,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:16,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:36:16,968 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 06:36:16,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [648098490] [2023-11-23 06:36:16,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:16,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:16,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:36:16,970 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:36:16,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 06:36:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:36:17,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 06:36:17,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:36:17,609 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-23 06:36:17,609 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:36:17,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:36:17,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851188059] [2023-11-23 06:36:17,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 06:36:17,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648098490] [2023-11-23 06:36:17,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648098490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:36:17,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:36:17,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 06:36:17,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173705762] [2023-11-23 06:36:17,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:36:17,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 06:36:17,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:36:17,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 06:36:17,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 06:36:17,613 INFO L87 Difference]: Start difference. First operand 192 states and 275 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-23 06:36:18,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:36:18,151 INFO L93 Difference]: Finished difference Result 352 states and 502 transitions. [2023-11-23 06:36:18,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 06:36:18,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 151 [2023-11-23 06:36:18,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:36:18,154 INFO L225 Difference]: With dead ends: 352 [2023-11-23 06:36:18,155 INFO L226 Difference]: Without dead ends: 192 [2023-11-23 06:36:18,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 06:36:18,156 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 56 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 06:36:18,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 774 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 06:36:18,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-23 06:36:18,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-11-23 06:36:18,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 102 states have (on average 1.196078431372549) internal successors, (122), 104 states have internal predecessors, (122), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2023-11-23 06:36:18,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 273 transitions. [2023-11-23 06:36:18,177 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 273 transitions. Word has length 151 [2023-11-23 06:36:18,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:36:18,177 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 273 transitions. [2023-11-23 06:36:18,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-23 06:36:18,178 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 273 transitions. [2023-11-23 06:36:18,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-23 06:36:18,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:36:18,180 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2023-11-23 06:36:18,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 06:36:18,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:18,396 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:36:18,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:36:18,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1555683408, now seen corresponding path program 2 times [2023-11-23 06:36:18,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:36:18,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506328551] [2023-11-23 06:36:18,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:18,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:36:18,487 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 06:36:18,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [520210407] [2023-11-23 06:36:18,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 06:36:18,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:18,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:36:18,490 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:36:18,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 06:36:18,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 06:36:18,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 06:36:18,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 1993 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 06:36:18,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:36:19,007 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-23 06:36:19,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:36:19,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:36:19,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506328551] [2023-11-23 06:36:19,008 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 06:36:19,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520210407] [2023-11-23 06:36:19,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520210407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:36:19,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:36:19,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 06:36:19,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311577959] [2023-11-23 06:36:19,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:36:19,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 06:36:19,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:36:19,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 06:36:19,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 06:36:19,011 INFO L87 Difference]: Start difference. First operand 192 states and 273 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-23 06:36:19,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:36:19,511 INFO L93 Difference]: Finished difference Result 246 states and 344 transitions. [2023-11-23 06:36:19,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 06:36:19,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 164 [2023-11-23 06:36:19,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:36:19,515 INFO L225 Difference]: With dead ends: 246 [2023-11-23 06:36:19,515 INFO L226 Difference]: Without dead ends: 196 [2023-11-23 06:36:19,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 06:36:19,516 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 1 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 06:36:19,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 974 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 06:36:19,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-23 06:36:19,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2023-11-23 06:36:19,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 105 states have (on average 1.1904761904761905) internal successors, (125), 107 states have internal predecessors, (125), 71 states have call successors, (71), 17 states have call predecessors, (71), 19 states have return successors, (82), 71 states have call predecessors, (82), 70 states have call successors, (82) [2023-11-23 06:36:19,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 278 transitions. [2023-11-23 06:36:19,541 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 278 transitions. Word has length 164 [2023-11-23 06:36:19,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:36:19,542 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 278 transitions. [2023-11-23 06:36:19,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-23 06:36:19,543 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 278 transitions. [2023-11-23 06:36:19,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-23 06:36:19,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:36:19,549 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2023-11-23 06:36:19,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 06:36:19,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:19,764 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:36:19,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:36:19,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1147063479, now seen corresponding path program 1 times [2023-11-23 06:36:19,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:36:19,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279519478] [2023-11-23 06:36:19,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:19,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:36:19,862 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 06:36:19,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1520200907] [2023-11-23 06:36:19,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:19,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:19,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:36:19,864 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:36:19,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 06:36:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:36:20,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 3008 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 06:36:20,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:36:20,493 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 06:36:20,494 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:36:20,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:36:20,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279519478] [2023-11-23 06:36:20,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 06:36:20,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520200907] [2023-11-23 06:36:20,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520200907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:36:20,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:36:20,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 06:36:20,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64467466] [2023-11-23 06:36:20,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:36:20,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 06:36:20,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:36:20,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 06:36:20,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 06:36:20,497 INFO L87 Difference]: Start difference. First operand 196 states and 278 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 06:36:21,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:36:21,350 INFO L93 Difference]: Finished difference Result 349 states and 491 transitions. [2023-11-23 06:36:21,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 06:36:21,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 168 [2023-11-23 06:36:21,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:36:21,353 INFO L225 Difference]: With dead ends: 349 [2023-11-23 06:36:21,353 INFO L226 Difference]: Without dead ends: 196 [2023-11-23 06:36:21,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 06:36:21,355 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 84 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 06:36:21,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 922 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 06:36:21,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-23 06:36:21,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2023-11-23 06:36:21,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 105 states have (on average 1.1904761904761905) internal successors, (125), 107 states have internal predecessors, (125), 71 states have call successors, (71), 17 states have call predecessors, (71), 19 states have return successors, (77), 71 states have call predecessors, (77), 70 states have call successors, (77) [2023-11-23 06:36:21,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 273 transitions. [2023-11-23 06:36:21,369 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 273 transitions. Word has length 168 [2023-11-23 06:36:21,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:36:21,370 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 273 transitions. [2023-11-23 06:36:21,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 06:36:21,370 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 273 transitions. [2023-11-23 06:36:21,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-23 06:36:21,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:36:21,372 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 06:36:21,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 06:36:21,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:21,594 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:36:21,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:36:21,594 INFO L85 PathProgramCache]: Analyzing trace with hash 884444917, now seen corresponding path program 1 times [2023-11-23 06:36:21,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:36:21,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346329414] [2023-11-23 06:36:21,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:21,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:36:21,673 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 06:36:21,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [184073433] [2023-11-23 06:36:21,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:21,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:21,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:36:21,675 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:36:21,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 06:36:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:36:22,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 3160 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 06:36:22,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:36:22,299 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2023-11-23 06:36:22,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:36:22,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:36:22,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346329414] [2023-11-23 06:36:22,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 06:36:22,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184073433] [2023-11-23 06:36:22,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184073433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:36:22,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:36:22,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 06:36:22,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483238092] [2023-11-23 06:36:22,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:36:22,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 06:36:22,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:36:22,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 06:36:22,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 06:36:22,303 INFO L87 Difference]: Start difference. First operand 196 states and 273 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-23 06:36:23,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:36:23,156 INFO L93 Difference]: Finished difference Result 346 states and 476 transitions. [2023-11-23 06:36:23,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 06:36:23,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 180 [2023-11-23 06:36:23,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:36:23,158 INFO L225 Difference]: With dead ends: 346 [2023-11-23 06:36:23,158 INFO L226 Difference]: Without dead ends: 194 [2023-11-23 06:36:23,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 06:36:23,160 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 83 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 06:36:23,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 920 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 06:36:23,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-23 06:36:23,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2023-11-23 06:36:23,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 104 states have (on average 1.1826923076923077) internal successors, (123), 105 states have internal predecessors, (123), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (72), 71 states have call predecessors, (72), 70 states have call successors, (72) [2023-11-23 06:36:23,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 266 transitions. [2023-11-23 06:36:23,171 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 266 transitions. Word has length 180 [2023-11-23 06:36:23,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:36:23,172 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 266 transitions. [2023-11-23 06:36:23,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-23 06:36:23,172 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 266 transitions. [2023-11-23 06:36:23,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-23 06:36:23,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:36:23,174 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 06:36:23,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 06:36:23,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:23,396 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:36:23,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:36:23,397 INFO L85 PathProgramCache]: Analyzing trace with hash 861264371, now seen corresponding path program 1 times [2023-11-23 06:36:23,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:36:23,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167129608] [2023-11-23 06:36:23,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:23,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:36:23,483 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 06:36:23,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1638490901] [2023-11-23 06:36:23,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:23,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:23,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:36:23,485 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:36:23,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 06:36:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:36:24,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 3339 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 06:36:24,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:36:24,167 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2023-11-23 06:36:24,167 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:36:24,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:36:24,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167129608] [2023-11-23 06:36:24,168 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 06:36:24,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638490901] [2023-11-23 06:36:24,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638490901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:36:24,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:36:24,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 06:36:24,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934079135] [2023-11-23 06:36:24,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:36:24,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 06:36:24,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:36:24,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 06:36:24,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 06:36:24,170 INFO L87 Difference]: Start difference. First operand 194 states and 266 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-23 06:36:24,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:36:24,714 INFO L93 Difference]: Finished difference Result 245 states and 330 transitions. [2023-11-23 06:36:24,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 06:36:24,714 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) Word has length 193 [2023-11-23 06:36:24,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:36:24,717 INFO L225 Difference]: With dead ends: 245 [2023-11-23 06:36:24,717 INFO L226 Difference]: Without dead ends: 203 [2023-11-23 06:36:24,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 06:36:24,718 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 4 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 06:36:24,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1208 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 06:36:24,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-11-23 06:36:24,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 196. [2023-11-23 06:36:24,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 106 states have (on average 1.179245283018868) internal successors, (125), 107 states have internal predecessors, (125), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (72), 71 states have call predecessors, (72), 70 states have call successors, (72) [2023-11-23 06:36:24,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 268 transitions. [2023-11-23 06:36:24,732 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 268 transitions. Word has length 193 [2023-11-23 06:36:24,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:36:24,733 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 268 transitions. [2023-11-23 06:36:24,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-23 06:36:24,734 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 268 transitions. [2023-11-23 06:36:24,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-23 06:36:24,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:36:24,736 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-23 06:36:24,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 06:36:24,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-23 06:36:24,960 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:36:24,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:36:24,961 INFO L85 PathProgramCache]: Analyzing trace with hash -536578057, now seen corresponding path program 1 times [2023-11-23 06:36:24,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:36:24,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209569650] [2023-11-23 06:36:24,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:24,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:36:25,044 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 06:36:25,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1350910176] [2023-11-23 06:36:25,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:25,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:25,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:36:25,046 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:36:25,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 06:36:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:36:27,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 3545 conjuncts, 95 conjunts are in the unsatisfiable core [2023-11-23 06:36:27,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:36:27,724 INFO L378 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 10 treesize of output 8 [2023-11-23 06:36:28,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 25 treesize of output 13 [2023-11-23 06:36:28,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-23 06:36:28,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-23 06:36:28,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-23 06:36:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 284 proven. 50 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-23 06:36:28,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 06:36:29,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:36:29,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209569650] [2023-11-23 06:36:29,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 06:36:29,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350910176] [2023-11-23 06:36:29,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350910176] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:36:29,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:36:29,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-23 06:36:29,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536516659] [2023-11-23 06:36:29,543 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 06:36:29,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-23 06:36:29,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:36:29,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-23 06:36:29,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=621, Unknown=0, NotChecked=0, Total=702 [2023-11-23 06:36:29,545 INFO L87 Difference]: Start difference. First operand 196 states and 268 transitions. Second operand has 18 states, 16 states have (on average 4.5625) internal successors, (73), 18 states have internal predecessors, (73), 9 states have call successors, (30), 5 states have call predecessors, (30), 8 states have return successors, (29), 7 states have call predecessors, (29), 9 states have call successors, (29) [2023-11-23 06:36:39,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:36:39,273 INFO L93 Difference]: Finished difference Result 567 states and 756 transitions. [2023-11-23 06:36:39,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-23 06:36:39,274 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.5625) internal successors, (73), 18 states have internal predecessors, (73), 9 states have call successors, (30), 5 states have call predecessors, (30), 8 states have return successors, (29), 7 states have call predecessors, (29), 9 states have call successors, (29) Word has length 207 [2023-11-23 06:36:39,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:36:39,277 INFO L225 Difference]: With dead ends: 567 [2023-11-23 06:36:39,277 INFO L226 Difference]: Without dead ends: 347 [2023-11-23 06:36:39,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 296 SyntacticMatches, 10 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=328, Invalid=2014, Unknown=10, NotChecked=0, Total=2352 [2023-11-23 06:36:39,280 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 321 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 286 mSolverCounterUnsat, 52 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 2615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 52 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-23 06:36:39,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1210 Invalid, 2615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 2277 Invalid, 52 Unknown, 0 Unchecked, 4.0s Time] [2023-11-23 06:36:39,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-23 06:36:39,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 339. [2023-11-23 06:36:39,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 184 states have (on average 1.184782608695652) internal successors, (218), 188 states have internal predecessors, (218), 119 states have call successors, (119), 32 states have call predecessors, (119), 35 states have return successors, (122), 118 states have call predecessors, (122), 117 states have call successors, (122) [2023-11-23 06:36:39,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 459 transitions. [2023-11-23 06:36:39,310 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 459 transitions. Word has length 207 [2023-11-23 06:36:39,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:36:39,311 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 459 transitions. [2023-11-23 06:36:39,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.5625) internal successors, (73), 18 states have internal predecessors, (73), 9 states have call successors, (30), 5 states have call predecessors, (30), 8 states have return successors, (29), 7 states have call predecessors, (29), 9 states have call successors, (29) [2023-11-23 06:36:39,312 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 459 transitions. [2023-11-23 06:36:39,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-23 06:36:39,315 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:36:39,315 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 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] [2023-11-23 06:36:39,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 06:36:39,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:39,540 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:36:39,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:36:39,541 INFO L85 PathProgramCache]: Analyzing trace with hash 738325825, now seen corresponding path program 1 times [2023-11-23 06:36:39,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:36:39,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283417934] [2023-11-23 06:36:39,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:39,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:36:39,681 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 06:36:39,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1074941375] [2023-11-23 06:36:39,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:39,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:39,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:36:39,684 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:36:39,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 06:36:40,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:36:40,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 3613 conjuncts, 94 conjunts are in the unsatisfiable core [2023-11-23 06:36:40,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:36:42,611 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_array_list_copy_~from#1.base_BEFORE_CALL_6| Int) (|v_ULTIMATE.start_aws_array_list_copy_~from#1.offset_BEFORE_CALL_3| Int)) (not (= (let ((.cse0 (+ 32 |v_ULTIMATE.start_aws_array_list_copy_~from#1.offset_BEFORE_CALL_3|))) (+ (select (select |c_#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_array_list_copy_~from#1.base_BEFORE_CALL_6|) .cse0) (select (select |c_#memory_$Pointer$#4.offset| |v_ULTIMATE.start_aws_array_list_copy_~from#1.base_BEFORE_CALL_6|) .cse0))) 0))) is different from true [2023-11-23 06:36:44,770 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_array_list_copy_~from#1.base_BEFORE_CALL_8| Int) (|v_ULTIMATE.start_aws_array_list_copy_~from#1.offset_BEFORE_CALL_5| Int)) (not (= (let ((.cse0 (+ 32 |v_ULTIMATE.start_aws_array_list_copy_~from#1.offset_BEFORE_CALL_5|))) (+ (select (select |c_#memory_$Pointer$#4.base| |v_ULTIMATE.start_aws_array_list_copy_~from#1.base_BEFORE_CALL_8|) .cse0) (select (select |c_#memory_$Pointer$#4.offset| |v_ULTIMATE.start_aws_array_list_copy_~from#1.base_BEFORE_CALL_8|) .cse0))) 0))) is different from true [2023-11-23 06:36:49,139 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 224 proven. 2 refuted. 0 times theorem prover too weak. 254 trivial. 7 not checked. [2023-11-23 06:36:49,139 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 06:36:49,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:36:49,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283417934] [2023-11-23 06:36:49,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 06:36:49,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074941375] [2023-11-23 06:36:49,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074941375] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:36:49,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:36:49,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2023-11-23 06:36:49,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074926191] [2023-11-23 06:36:49,817 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 06:36:49,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-23 06:36:49,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:36:49,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-23 06:36:49,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=615, Unknown=4, NotChecked=102, Total=812 [2023-11-23 06:36:49,819 INFO L87 Difference]: Start difference. First operand 339 states and 459 transitions. Second operand has 20 states, 18 states have (on average 4.333333333333333) internal successors, (78), 18 states have internal predecessors, (78), 7 states have call successors, (30), 5 states have call predecessors, (30), 7 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2023-11-23 06:36:51,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:36:51,869 INFO L93 Difference]: Finished difference Result 647 states and 882 transitions. [2023-11-23 06:36:51,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-23 06:36:51,870 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 4.333333333333333) internal successors, (78), 18 states have internal predecessors, (78), 7 states have call successors, (30), 5 states have call predecessors, (30), 7 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) Word has length 217 [2023-11-23 06:36:51,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:36:51,873 INFO L225 Difference]: With dead ends: 647 [2023-11-23 06:36:51,873 INFO L226 Difference]: Without dead ends: 365 [2023-11-23 06:36:51,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 206 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=195, Invalid=1291, Unknown=4, NotChecked=150, Total=1640 [2023-11-23 06:36:51,875 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 121 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 2492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 565 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-23 06:36:51,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 824 Invalid, 2492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1858 Invalid, 0 Unknown, 565 Unchecked, 1.6s Time] [2023-11-23 06:36:51,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-11-23 06:36:51,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 357. [2023-11-23 06:36:51,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 198 states have (on average 1.1818181818181819) internal successors, (234), 204 states have internal predecessors, (234), 119 states have call successors, (119), 34 states have call predecessors, (119), 39 states have return successors, (139), 118 states have call predecessors, (139), 117 states have call successors, (139) [2023-11-23 06:36:51,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 492 transitions. [2023-11-23 06:36:51,903 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 492 transitions. Word has length 217 [2023-11-23 06:36:51,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:36:51,904 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 492 transitions. [2023-11-23 06:36:51,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 4.333333333333333) internal successors, (78), 18 states have internal predecessors, (78), 7 states have call successors, (30), 5 states have call predecessors, (30), 7 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2023-11-23 06:36:51,905 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 492 transitions. [2023-11-23 06:36:51,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-23 06:36:51,907 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:36:51,907 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 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] [2023-11-23 06:36:51,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-23 06:36:52,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 06:36:52,120 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:36:52,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:36:52,121 INFO L85 PathProgramCache]: Analyzing trace with hash 422199613, now seen corresponding path program 1 times [2023-11-23 06:36:52,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:36:52,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146613702] [2023-11-23 06:36:52,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:52,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:36:52,215 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 06:36:52,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2143568737] [2023-11-23 06:36:52,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:52,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:52,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:36:52,217 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:36:52,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 06:36:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:36:52,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 3603 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 06:36:52,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:36:52,924 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-23 06:36:52,924 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:36:52,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:36:52,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146613702] [2023-11-23 06:36:52,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 06:36:52,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143568737] [2023-11-23 06:36:52,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143568737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:36:52,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:36:52,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 06:36:52,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999513435] [2023-11-23 06:36:52,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:36:52,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 06:36:52,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:36:52,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 06:36:52,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 06:36:52,928 INFO L87 Difference]: Start difference. First operand 357 states and 492 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-23 06:36:53,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:36:53,405 INFO L93 Difference]: Finished difference Result 714 states and 1004 transitions. [2023-11-23 06:36:53,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 06:36:53,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 217 [2023-11-23 06:36:53,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:36:53,408 INFO L225 Difference]: With dead ends: 714 [2023-11-23 06:36:53,409 INFO L226 Difference]: Without dead ends: 363 [2023-11-23 06:36:53,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 06:36:53,411 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 7 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 06:36:53,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 730 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 06:36:53,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-23 06:36:53,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 357. [2023-11-23 06:36:53,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 198 states have (on average 1.1717171717171717) internal successors, (232), 204 states have internal predecessors, (232), 119 states have call successors, (119), 34 states have call predecessors, (119), 39 states have return successors, (139), 118 states have call predecessors, (139), 117 states have call successors, (139) [2023-11-23 06:36:53,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 490 transitions. [2023-11-23 06:36:53,441 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 490 transitions. Word has length 217 [2023-11-23 06:36:53,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:36:53,442 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 490 transitions. [2023-11-23 06:36:53,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-23 06:36:53,442 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 490 transitions. [2023-11-23 06:36:53,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-11-23 06:36:53,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:36:53,445 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 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] [2023-11-23 06:36:53,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 06:36:53,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 06:36:53,666 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:36:53,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:36:53,667 INFO L85 PathProgramCache]: Analyzing trace with hash 613755866, now seen corresponding path program 1 times [2023-11-23 06:36:53,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:36:53,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605121456] [2023-11-23 06:36:53,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:53,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:36:53,788 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 06:36:53,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681346514] [2023-11-23 06:36:53,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:36:53,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:36:53,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:36:53,793 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:36:53,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 06:36:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:36:54,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 3644 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-23 06:36:54,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:36:54,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-23 06:36:54,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 26 treesize of output 14 [2023-11-23 06:36:55,025 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-23 06:36:55,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:36:55,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:36:55,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605121456] [2023-11-23 06:36:55,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 06:36:55,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681346514] [2023-11-23 06:36:55,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681346514] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:36:55,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:36:55,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-23 06:36:55,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052244459] [2023-11-23 06:36:55,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:36:55,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 06:36:55,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:36:55,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 06:36:55,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-23 06:36:55,028 INFO L87 Difference]: Start difference. First operand 357 states and 490 transitions. Second operand has 15 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 8 states have call successors, (33), 4 states have call predecessors, (33), 7 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-23 06:36:57,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:36:59,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:02,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:04,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:06,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:08,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:10,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:12,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:14,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:16,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:18,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:21,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:23,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:25,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:27,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:30,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:30,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:37:30,419 INFO L93 Difference]: Finished difference Result 618 states and 839 transitions. [2023-11-23 06:37:30,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 06:37:30,420 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 8 states have call successors, (33), 4 states have call predecessors, (33), 7 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) Word has length 218 [2023-11-23 06:37:30,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:37:30,423 INFO L225 Difference]: With dead ends: 618 [2023-11-23 06:37:30,423 INFO L226 Difference]: Without dead ends: 441 [2023-11-23 06:37:30,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 198 SyntacticMatches, 13 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=150, Invalid=720, Unknown=0, NotChecked=0, Total=870 [2023-11-23 06:37:30,425 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 260 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 2760 mSolverCounterSat, 200 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 2976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 2760 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2023-11-23 06:37:30,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 1254 Invalid, 2976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 2760 Invalid, 16 Unknown, 0 Unchecked, 35.1s Time] [2023-11-23 06:37:30,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-11-23 06:37:30,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 427. [2023-11-23 06:37:30,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 240 states have (on average 1.1708333333333334) internal successors, (281), 247 states have internal predecessors, (281), 138 states have call successors, (138), 44 states have call predecessors, (138), 48 states have return successors, (151), 135 states have call predecessors, (151), 135 states have call successors, (151) [2023-11-23 06:37:30,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 570 transitions. [2023-11-23 06:37:30,459 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 570 transitions. Word has length 218 [2023-11-23 06:37:30,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:37:30,460 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 570 transitions. [2023-11-23 06:37:30,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 8 states have call successors, (33), 4 states have call predecessors, (33), 7 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-23 06:37:30,460 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 570 transitions. [2023-11-23 06:37:30,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-23 06:37:30,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:37:30,463 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 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, 1, 1, 1, 1, 1, 1] [2023-11-23 06:37:30,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 06:37:30,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 06:37:30,676 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:37:30,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:37:30,677 INFO L85 PathProgramCache]: Analyzing trace with hash -686966875, now seen corresponding path program 1 times [2023-11-23 06:37:30,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:37:30,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164301862] [2023-11-23 06:37:30,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:37:30,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:37:30,758 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 06:37:30,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1737247839] [2023-11-23 06:37:30,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:37:30,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:37:30,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:37:30,762 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:37:30,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 06:37:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:37:31,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 3589 conjuncts, 118 conjunts are in the unsatisfiable core [2023-11-23 06:37:31,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:37:31,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-23 06:37:31,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 26 treesize of output 14 [2023-11-23 06:37:31,827 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2023-11-23 06:37:31,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:37:31,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:37:31,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164301862] [2023-11-23 06:37:31,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 06:37:31,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737247839] [2023-11-23 06:37:31,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737247839] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:37:31,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:37:31,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-23 06:37:31,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140194773] [2023-11-23 06:37:31,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:37:31,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 06:37:31,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:37:31,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 06:37:31,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-11-23 06:37:31,830 INFO L87 Difference]: Start difference. First operand 427 states and 570 transitions. Second operand has 16 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 8 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (30), 8 states have call predecessors, (30), 8 states have call successors, (30) [2023-11-23 06:37:34,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:36,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:39,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:41,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:43,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:45,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:47,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:49,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:51,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:53,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:56,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:37:58,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:38:00,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:38:02,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:38:04,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:38:07,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:38:07,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:38:07,634 INFO L93 Difference]: Finished difference Result 879 states and 1167 transitions. [2023-11-23 06:38:07,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-23 06:38:07,635 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 8 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (30), 8 states have call predecessors, (30), 8 states have call successors, (30) Word has length 216 [2023-11-23 06:38:07,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:38:07,638 INFO L225 Difference]: With dead ends: 879 [2023-11-23 06:38:07,638 INFO L226 Difference]: Without dead ends: 472 [2023-11-23 06:38:07,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=179, Invalid=877, Unknown=0, NotChecked=0, Total=1056 [2023-11-23 06:38:07,641 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 263 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 3122 mSolverCounterSat, 183 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 3321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 3122 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.5s IncrementalHoareTripleChecker+Time [2023-11-23 06:38:07,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1414 Invalid, 3321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 3122 Invalid, 16 Unknown, 0 Unchecked, 35.5s Time] [2023-11-23 06:38:07,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-11-23 06:38:07,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 462. [2023-11-23 06:38:07,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 264 states have (on average 1.1742424242424243) internal successors, (310), 272 states have internal predecessors, (310), 143 states have call successors, (143), 49 states have call predecessors, (143), 54 states have return successors, (154), 140 states have call predecessors, (154), 139 states have call successors, (154) [2023-11-23 06:38:07,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 607 transitions. [2023-11-23 06:38:07,715 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 607 transitions. Word has length 216 [2023-11-23 06:38:07,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:38:07,716 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 607 transitions. [2023-11-23 06:38:07,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 8 states have call successors, (31), 4 states have call predecessors, (31), 7 states have return successors, (30), 8 states have call predecessors, (30), 8 states have call successors, (30) [2023-11-23 06:38:07,716 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 607 transitions. [2023-11-23 06:38:07,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-11-23 06:38:07,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:38:07,719 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2023-11-23 06:38:07,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 06:38:07,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 06:38:07,943 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:38:07,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:38:07,944 INFO L85 PathProgramCache]: Analyzing trace with hash 124146347, now seen corresponding path program 2 times [2023-11-23 06:38:07,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:38:07,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412306157] [2023-11-23 06:38:07,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:38:07,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:38:08,027 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 06:38:08,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1857408196] [2023-11-23 06:38:08,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 06:38:08,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:38:08,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:38:08,029 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:38:08,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 06:38:12,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 06:38:12,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 06:38:12,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 3594 conjuncts, 83 conjunts are in the unsatisfiable core [2023-11-23 06:38:12,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:38:12,405 INFO L378 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 10 treesize of output 8 [2023-11-23 06:38:12,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2023-11-23 06:38:12,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 28 treesize of output 16 [2023-11-23 06:38:23,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-23 06:38:38,257 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 111 proven. 16 refuted. 36 times theorem prover too weak. 319 trivial. 0 not checked. [2023-11-23 06:38:38,257 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 06:38:38,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:38:38,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412306157] [2023-11-23 06:38:38,530 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 06:38:38,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857408196] [2023-11-23 06:38:38,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857408196] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:38:38,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:38:38,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-23 06:38:38,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142382671] [2023-11-23 06:38:38,531 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 06:38:38,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-23 06:38:38,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:38:38,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-23 06:38:38,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=384, Unknown=5, NotChecked=0, Total=462 [2023-11-23 06:38:38,532 INFO L87 Difference]: Start difference. First operand 462 states and 607 transitions. Second operand has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 17 states have internal predecessors, (72), 10 states have call successors, (30), 5 states have call predecessors, (30), 7 states have return successors, (29), 10 states have call predecessors, (29), 9 states have call successors, (29) [2023-11-23 06:38:41,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:38:43,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:38:44,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:38:46,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:38:48,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:38:52,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:38:54,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:38:56,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:38:59,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:01,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:03,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:05,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:07,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:09,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:11,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:17,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:18,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:20,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:22,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:23,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:25,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:27,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:29,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:31,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:33,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:35,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:37,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:39,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:41,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:43,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:45,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:47,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:49,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:51,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:53,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:55,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:57,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:39:59,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:40:01,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:40:03,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:40:05,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:40:07,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:40:09,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:40:11,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:40:13,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:40:16,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:40:18,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:40:20,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:40:22,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:40:24,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:40:26,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:40:28,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] Killed by 15