./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_hash_table_create_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_hash_table_create_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 1a8b6c26388a304cc0f7eb4ee9884a8aba034f0011f9928d095d792e0fe01855 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 07:19:39,675 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 07:19:39,804 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 07:19:39,808 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 07:19:39,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 07:19:39,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 07:19:39,846 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 07:19:39,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 07:19:39,847 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 07:19:39,850 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 07:19:39,850 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 07:19:39,850 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 07:19:39,851 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 07:19:39,852 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 07:19:39,852 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 07:19:39,852 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 07:19:39,853 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 07:19:39,853 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 07:19:39,853 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 07:19:39,853 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 07:19:39,853 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 07:19:39,854 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 07:19:39,854 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 07:19:39,854 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 07:19:39,855 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 07:19:39,855 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 07:19:39,855 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 07:19:39,855 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 07:19:39,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:19:39,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 07:19:39,856 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 07:19:39,856 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 07:19:39,857 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 07:19:39,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 07:19:39,857 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 07:19:39,857 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 07:19:39,857 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 07:19:39,858 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 07:19:39,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 07:19:39,858 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a8b6c26388a304cc0f7eb4ee9884a8aba034f0011f9928d095d792e0fe01855 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 07:19:40,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 07:19:40,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 07:19:40,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 07:19:40,122 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 07:19:40,122 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 07:19:40,123 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_hash_table_create_harness_negated.i [2023-11-23 07:19:41,119 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 07:19:41,514 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 07:19:41,514 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_hash_table_create_harness_negated.i [2023-11-23 07:19:41,541 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30d52c368/337eb9824c324d7fb239d53decc09f50/FLAGc2ccc00cb [2023-11-23 07:19:41,554 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30d52c368/337eb9824c324d7fb239d53decc09f50 [2023-11-23 07:19:41,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 07:19:41,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 07:19:41,559 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 07:19:41,559 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 07:19:41,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 07:19:41,563 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:19:41" (1/1) ... [2023-11-23 07:19:41,564 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4dfd54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:41, skipping insertion in model container [2023-11-23 07:19:41,564 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:19:41" (1/1) ... [2023-11-23 07:19:41,639 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 07:19:41,824 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_hash_table_create_harness_negated.i[4495,4508] [2023-11-23 07:19:41,831 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_hash_table_create_harness_negated.i[4555,4568] [2023-11-23 07:19:42,442 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:42,442 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:42,443 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:42,443 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:42,446 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:42,457 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:42,460 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:42,461 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:42,462 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:42,463 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:42,464 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:42,470 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:42,471 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:42,802 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:19:42,803 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:19:42,804 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:19:42,804 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:19:42,805 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:19:42,806 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:19:42,806 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:19:42,806 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:19:42,807 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:19:42,807 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:19:43,136 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,137 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,157 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,158 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,163 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,164 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,179 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,180 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,180 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,181 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,181 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,182 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,182 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:19:43,244 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 07:19:43,259 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_hash_table_create_harness_negated.i[4495,4508] [2023-11-23 07:19:43,260 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_hash_table_create_harness_negated.i[4555,4568] [2023-11-23 07:19:43,301 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,301 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,301 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,302 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,302 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,309 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,312 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,314 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,315 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,315 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,315 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,316 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,316 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,337 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:19:43,338 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:19:43,338 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:19:43,339 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:19:43,339 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:19:43,340 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:19:43,340 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:19:43,340 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:19:43,341 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:19:43,341 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:19:43,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7544-7555] [2023-11-23 07:19:43,455 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,456 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,461 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,462 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,464 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,472 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,480 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,481 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,481 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,482 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,482 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,482 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,482 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:19:43,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:19:43,659 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,659 WARN L675 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,660 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,660 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,660 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,660 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,660 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,660 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,660 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,660 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,660 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,661 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,661 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,661 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,661 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,661 WARN L675 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,661 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,661 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:19:43,667 INFO L206 MainTranslator]: Completed translation [2023-11-23 07:19:43,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:43 WrapperNode [2023-11-23 07:19:43,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 07:19:43,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 07:19:43,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 07:19:43,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 07:19:43,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:43" (1/1) ... [2023-11-23 07:19:43,748 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:43" (1/1) ... [2023-11-23 07:19:43,817 INFO L138 Inliner]: procedures = 773, calls = 2490, calls flagged for inlining = 67, calls inlined = 21, statements flattened = 1362 [2023-11-23 07:19:43,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 07:19:43,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 07:19:43,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 07:19:43,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 07:19:43,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:43" (1/1) ... [2023-11-23 07:19:43,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:43" (1/1) ... [2023-11-23 07:19:43,834 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:43" (1/1) ... [2023-11-23 07:19:43,841 WARN L107 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-23 07:19:43,841 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:43" (1/1) ... [2023-11-23 07:19:43,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:43" (1/1) ... [2023-11-23 07:19:43,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:43" (1/1) ... [2023-11-23 07:19:43,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:43" (1/1) ... [2023-11-23 07:19:43,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:43" (1/1) ... [2023-11-23 07:19:43,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:43" (1/1) ... [2023-11-23 07:19:43,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 07:19:43,894 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 07:19:43,894 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 07:19:43,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 07:19:43,895 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:43" (1/1) ... [2023-11-23 07:19:43,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:19:43,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:19:43,934 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 07:19:43,949 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 07:19:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-23 07:19:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 07:19:43,969 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 07:19:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2023-11-23 07:19:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 07:19:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 07:19:43,970 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 07:19:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 07:19:43,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 07:19:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_create [2023-11-23 07:19:43,971 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_create [2023-11-23 07:19:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-23 07:19:43,971 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-23 07:19:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 07:19:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 07:19:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 07:19:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure s_emplace_item [2023-11-23 07:19:43,971 INFO L138 BoogieDeclarations]: Found implementation of procedure s_emplace_item [2023-11-23 07:19:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 07:19:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 07:19:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 07:19:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 07:19:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 07:19:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 07:19:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 07:19:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-23 07:19:43,973 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-23 07:19:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 07:19:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-23 07:19:43,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-23 07:19:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 07:19:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 07:19:43,973 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 07:19:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 07:19:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2023-11-23 07:19:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2023-11-23 07:19:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-23 07:19:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-23 07:19:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure s_update_template_size [2023-11-23 07:19:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure s_update_template_size [2023-11-23 07:19:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2023-11-23 07:19:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2023-11-23 07:19:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2023-11-23 07:19:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2023-11-23 07:19:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 07:19:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-23 07:19:43,975 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-23 07:19:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 07:19:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_calloc [2023-11-23 07:19:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_calloc [2023-11-23 07:19:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-23 07:19:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-23 07:19:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-23 07:19:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2023-11-23 07:19:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2023-11-23 07:19:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2023-11-23 07:19:43,977 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2023-11-23 07:19:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2023-11-23 07:19:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2023-11-23 07:19:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 07:19:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 07:19:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-23 07:19:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-23 07:19:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 07:19:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 07:19:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 07:19:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 07:19:43,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 07:19:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-23 07:19:43,985 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-23 07:19:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure s_alloc_state [2023-11-23 07:19:43,986 INFO L138 BoogieDeclarations]: Found implementation of procedure s_alloc_state [2023-11-23 07:19:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2023-11-23 07:19:43,986 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2023-11-23 07:19:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 07:19:43,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 07:19:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 07:19:44,334 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 07:19:44,340 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 07:19:44,516 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2023-11-23 07:19:44,535 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2023-11-23 07:19:45,357 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume !true; [2023-11-23 07:19:45,358 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !true; [2023-11-23 07:19:46,057 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 07:19:46,160 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 07:19:46,160 INFO L309 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-23 07:19:46,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:19:46 BoogieIcfgContainer [2023-11-23 07:19:46,161 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 07:19:46,163 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 07:19:46,169 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 07:19:46,172 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 07:19:46,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:19:41" (1/3) ... [2023-11-23 07:19:46,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb50f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:19:46, skipping insertion in model container [2023-11-23 07:19:46,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:43" (2/3) ... [2023-11-23 07:19:46,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb50f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:19:46, skipping insertion in model container [2023-11-23 07:19:46,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:19:46" (3/3) ... [2023-11-23 07:19:46,176 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_create_harness_negated.i [2023-11-23 07:19:46,214 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 07:19:46,219 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 07:19:46,277 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 07:19:46,282 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;@5582d043, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 07:19:46,282 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 07:19:46,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 351 states, 237 states have (on average 1.3670886075949367) internal successors, (324), 234 states have internal predecessors, (324), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-11-23 07:19:46,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-23 07:19:46,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:19:46,297 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-23 07:19:46,298 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:19:46,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:19:46,302 INFO L85 PathProgramCache]: Analyzing trace with hash 653561781, now seen corresponding path program 1 times [2023-11-23 07:19:46,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:19:46,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325131384] [2023-11-23 07:19:46,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:19:46,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:19:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:46,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:19:46,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325131384] [2023-11-23 07:19:46,945 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 07:19:46,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577295023] [2023-11-23 07:19:46,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:19:46,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:19:46,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:19:46,960 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 07:19:47,028 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 07:19:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:47,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 2499 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 07:19:47,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:19:47,905 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-23 07:19:47,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:19:47,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577295023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:19:47,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:19:47,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 07:19:47,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722116316] [2023-11-23 07:19:47,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:19:47,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 07:19:47,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:19:47,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 07:19:47,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 07:19:48,000 INFO L87 Difference]: Start difference. First operand has 351 states, 237 states have (on average 1.3670886075949367) internal successors, (324), 234 states have internal predecessors, (324), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 07:19:48,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:19:48,223 INFO L93 Difference]: Finished difference Result 698 states and 1046 transitions. [2023-11-23 07:19:48,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 07:19:48,225 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 111 [2023-11-23 07:19:48,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:19:48,240 INFO L225 Difference]: With dead ends: 698 [2023-11-23 07:19:48,240 INFO L226 Difference]: Without dead ends: 347 [2023-11-23 07:19:48,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 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 07:19:48,251 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:19:48,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 458 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:19:48,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-23 07:19:48,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2023-11-23 07:19:48,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 230 states have (on average 1.3434782608695652) internal successors, (309), 232 states have internal predecessors, (309), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-23 07:19:48,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 479 transitions. [2023-11-23 07:19:48,376 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 479 transitions. Word has length 111 [2023-11-23 07:19:48,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:19:48,378 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 479 transitions. [2023-11-23 07:19:48,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 07:19:48,378 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 479 transitions. [2023-11-23 07:19:48,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-23 07:19:48,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:19:48,398 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-23 07:19:48,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 07:19:48,613 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 07:19:48,613 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:19:48,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:19:48,614 INFO L85 PathProgramCache]: Analyzing trace with hash -162584657, now seen corresponding path program 1 times [2023-11-23 07:19:48,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:19:48,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730904731] [2023-11-23 07:19:48,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:19:48,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:19:48,750 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:19:48,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [371043336] [2023-11-23 07:19:48,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:19:48,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:19:48,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:19:48,752 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 07:19:48,780 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 07:19:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:49,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 2499 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 07:19:49,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:19:49,650 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-23 07:19:49,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:19:49,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:19:49,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730904731] [2023-11-23 07:19:49,651 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:19:49,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371043336] [2023-11-23 07:19:49,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371043336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:19:49,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:19:49,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:19:49,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316488126] [2023-11-23 07:19:49,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:19:49,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:19:49,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:19:49,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:19:49,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:19:49,657 INFO L87 Difference]: Start difference. First operand 347 states and 479 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 07:19:50,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:19:50,495 INFO L93 Difference]: Finished difference Result 682 states and 941 transitions. [2023-11-23 07:19:50,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:19:50,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 111 [2023-11-23 07:19:50,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:19:50,499 INFO L225 Difference]: With dead ends: 682 [2023-11-23 07:19:50,499 INFO L226 Difference]: Without dead ends: 347 [2023-11-23 07:19:50,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:19:50,504 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 21 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:19:50,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 1295 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 07:19:50,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-23 07:19:50,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2023-11-23 07:19:50,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 230 states have (on average 1.3391304347826087) internal successors, (308), 232 states have internal predecessors, (308), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-23 07:19:50,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 478 transitions. [2023-11-23 07:19:50,525 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 478 transitions. Word has length 111 [2023-11-23 07:19:50,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:19:50,528 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 478 transitions. [2023-11-23 07:19:50,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 07:19:50,528 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 478 transitions. [2023-11-23 07:19:50,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-23 07:19:50,536 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:19:50,536 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-23 07:19:50,554 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 07:19:50,751 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 07:19:50,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:19:50,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:19:50,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1423501907, now seen corresponding path program 1 times [2023-11-23 07:19:50,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:19:50,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350597801] [2023-11-23 07:19:50,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:19:50,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:19:50,841 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:19:50,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885108997] [2023-11-23 07:19:50,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:19:50,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:19:50,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:19:50,842 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 07:19:50,846 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 07:19:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:51,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 2504 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:19:51,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:19:51,432 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-23 07:19:51,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:19:51,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:19:51,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350597801] [2023-11-23 07:19:51,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 07:19:51,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885108997] [2023-11-23 07:19:51,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885108997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:19:51,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:19:51,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 07:19:51,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623817528] [2023-11-23 07:19:51,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:19:51,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:19:51,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:19:51,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:19:51,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:19:51,434 INFO L87 Difference]: Start difference. First operand 347 states and 478 transitions. Second operand has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 07:19:51,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:19:51,662 INFO L93 Difference]: Finished difference Result 690 states and 955 transitions. [2023-11-23 07:19:51,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:19:51,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 111 [2023-11-23 07:19:51,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:19:51,665 INFO L225 Difference]: With dead ends: 690 [2023-11-23 07:19:51,665 INFO L226 Difference]: Without dead ends: 351 [2023-11-23 07:19:51,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 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 07:19:51,667 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 1 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:19:51,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1796 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:19:51,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-23 07:19:51,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2023-11-23 07:19:51,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 233 states have (on average 1.3347639484978542) internal successors, (311), 235 states have internal predecessors, (311), 86 states have call successors, (86), 30 states have call predecessors, (86), 31 states have return successors, (88), 85 states have call predecessors, (88), 84 states have call successors, (88) [2023-11-23 07:19:51,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 485 transitions. [2023-11-23 07:19:51,680 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 485 transitions. Word has length 111 [2023-11-23 07:19:51,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:19:51,680 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 485 transitions. [2023-11-23 07:19:51,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 07:19:51,681 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 485 transitions. [2023-11-23 07:19:51,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 07:19:51,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:19:51,682 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1] [2023-11-23 07:19:51,702 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 07:19:51,902 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 07:19:51,903 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:19:51,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:19:51,903 INFO L85 PathProgramCache]: Analyzing trace with hash 200899191, now seen corresponding path program 1 times [2023-11-23 07:19:51,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:19:51,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75590939] [2023-11-23 07:19:51,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:19:51,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:19:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:19:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:19:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:19:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:19:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:19:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:19:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:19:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:19:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 07:19:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 07:19:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:19:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 07:19:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:19:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:19:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 07:19:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:53,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:19:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:54,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 07:19:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:54,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 07:19:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:54,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 07:19:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:54,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 07:19:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:19:54,061 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-23 07:19:54,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:19:54,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75590939] [2023-11-23 07:19:54,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75590939] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:19:54,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:19:54,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-23 07:19:54,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688896914] [2023-11-23 07:19:54,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:19:54,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 07:19:54,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:19:54,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 07:19:54,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:19:54,065 INFO L87 Difference]: Start difference. First operand 351 states and 485 transitions. Second operand has 13 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 9 states have internal predecessors, (47), 4 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 07:19:59,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:19:59,751 INFO L93 Difference]: Finished difference Result 761 states and 1063 transitions. [2023-11-23 07:19:59,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 07:19:59,752 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 9 states have internal predecessors, (47), 4 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 115 [2023-11-23 07:19:59,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:19:59,754 INFO L225 Difference]: With dead ends: 761 [2023-11-23 07:19:59,754 INFO L226 Difference]: Without dead ends: 428 [2023-11-23 07:19:59,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-11-23 07:19:59,756 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 450 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 2589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:19:59,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 1737 Invalid, 2589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-23 07:19:59,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2023-11-23 07:19:59,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 353. [2023-11-23 07:19:59,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 234 states have (on average 1.3333333333333333) internal successors, (312), 237 states have internal predecessors, (312), 86 states have call successors, (86), 30 states have call predecessors, (86), 32 states have return successors, (89), 85 states have call predecessors, (89), 84 states have call successors, (89) [2023-11-23 07:19:59,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 487 transitions. [2023-11-23 07:19:59,794 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 487 transitions. Word has length 115 [2023-11-23 07:19:59,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:19:59,794 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 487 transitions. [2023-11-23 07:19:59,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 9 states have internal predecessors, (47), 4 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 07:19:59,795 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 487 transitions. [2023-11-23 07:19:59,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-23 07:19:59,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:19:59,795 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1] [2023-11-23 07:19:59,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 07:19:59,856 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:19:59,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:19:59,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1649857243, now seen corresponding path program 1 times [2023-11-23 07:19:59,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:19:59,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947491297] [2023-11-23 07:19:59,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:19:59,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:19:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:20:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:20:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:20:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:20:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:20:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 07:20:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 07:20:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 07:20:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 07:20:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:20:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 07:20:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:20:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 07:20:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 07:20:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:00,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 07:20:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:01,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 07:20:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:01,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-23 07:20:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:01,010 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-23 07:20:01,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:20:01,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947491297] [2023-11-23 07:20:01,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947491297] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:20:01,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098556712] [2023-11-23 07:20:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:20:01,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:20:01,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:20:01,015 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 07:20:01,090 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 07:20:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:01,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 2527 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-23 07:20:01,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:20:01,938 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-23 07:20:01,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:20:01,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098556712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:20:01,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:20:01,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2023-11-23 07:20:01,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051050914] [2023-11-23 07:20:01,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:20:01,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:20:01,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:20:01,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:20:01,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:20:01,947 INFO L87 Difference]: Start difference. First operand 353 states and 487 transitions. Second operand has 9 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-23 07:20:02,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:20:02,640 INFO L93 Difference]: Finished difference Result 693 states and 960 transitions. [2023-11-23 07:20:02,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:20:02,641 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 121 [2023-11-23 07:20:02,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:20:02,643 INFO L225 Difference]: With dead ends: 693 [2023-11-23 07:20:02,643 INFO L226 Difference]: Without dead ends: 358 [2023-11-23 07:20:02,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2023-11-23 07:20:02,644 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 3 mSDsluCounter, 2960 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3390 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:20:02,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3390 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 07:20:02,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-23 07:20:02,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2023-11-23 07:20:02,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 236 states have (on average 1.3305084745762712) internal successors, (314), 239 states have internal predecessors, (314), 86 states have call successors, (86), 30 states have call predecessors, (86), 33 states have return successors, (96), 86 states have call predecessors, (96), 84 states have call successors, (96) [2023-11-23 07:20:02,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 496 transitions. [2023-11-23 07:20:02,663 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 496 transitions. Word has length 121 [2023-11-23 07:20:02,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:20:02,663 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 496 transitions. [2023-11-23 07:20:02,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-23 07:20:02,663 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 496 transitions. [2023-11-23 07:20:02,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-23 07:20:02,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:20:02,666 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1] [2023-11-23 07:20:02,684 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 07:20:02,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:20:02,884 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:20:02,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:20:02,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1721551453, now seen corresponding path program 1 times [2023-11-23 07:20:02,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:20:02,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6434195] [2023-11-23 07:20:02,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:20:02,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:20:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:20:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:20:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:20:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:20:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:20:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 07:20:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 07:20:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 07:20:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 07:20:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:20:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 07:20:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 07:20:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 07:20:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 07:20:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 07:20:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 07:20:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 07:20:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 07:20:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:03,540 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-23 07:20:03,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:20:03,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6434195] [2023-11-23 07:20:03,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6434195] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:20:03,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:20:03,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 07:20:03,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101445447] [2023-11-23 07:20:03,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:20:03,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:20:03,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:20:03,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:20:03,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:20:03,543 INFO L87 Difference]: Start difference. First operand 356 states and 496 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 07:20:06,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:20:06,371 INFO L93 Difference]: Finished difference Result 750 states and 1056 transitions. [2023-11-23 07:20:06,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:20:06,372 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 127 [2023-11-23 07:20:06,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:20:06,374 INFO L225 Difference]: With dead ends: 750 [2023-11-23 07:20:06,374 INFO L226 Difference]: Without dead ends: 431 [2023-11-23 07:20:06,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:20:06,376 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 322 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:20:06,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 1489 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1855 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-23 07:20:06,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-11-23 07:20:06,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 356. [2023-11-23 07:20:06,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 236 states have (on average 1.3305084745762712) internal successors, (314), 239 states have internal predecessors, (314), 86 states have call successors, (86), 30 states have call predecessors, (86), 33 states have return successors, (95), 86 states have call predecessors, (95), 84 states have call successors, (95) [2023-11-23 07:20:06,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 495 transitions. [2023-11-23 07:20:06,394 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 495 transitions. Word has length 127 [2023-11-23 07:20:06,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:20:06,394 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 495 transitions. [2023-11-23 07:20:06,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 07:20:06,394 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 495 transitions. [2023-11-23 07:20:06,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-23 07:20:06,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:20:06,396 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:20:06,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 07:20:06,396 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:20:06,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:20:06,397 INFO L85 PathProgramCache]: Analyzing trace with hash 2077714283, now seen corresponding path program 1 times [2023-11-23 07:20:06,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:20:06,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120383318] [2023-11-23 07:20:06,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:20:06,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:20:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:20:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:20:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:20:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:20:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:20:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 07:20:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 07:20:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 07:20:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 07:20:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:20:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 07:20:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 07:20:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 07:20:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 07:20:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 07:20:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 07:20:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 07:20:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:20:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-23 07:20:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,364 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-23 07:20:07,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:20:07,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120383318] [2023-11-23 07:20:07,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120383318] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:20:07,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860600454] [2023-11-23 07:20:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:20:07,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:20:07,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:20:07,366 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 07:20:07,392 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 07:20:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:07,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 2589 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-23 07:20:07,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:20:08,018 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-11-23 07:20:08,019 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:20:08,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860600454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:20:08,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:20:08,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 14 [2023-11-23 07:20:08,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080756370] [2023-11-23 07:20:08,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:20:08,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:20:08,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:20:08,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:20:08,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:20:08,021 INFO L87 Difference]: Start difference. First operand 356 states and 495 transitions. Second operand has 9 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 07:20:08,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:20:08,577 INFO L93 Difference]: Finished difference Result 680 states and 951 transitions. [2023-11-23 07:20:08,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:20:08,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) Word has length 133 [2023-11-23 07:20:08,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:20:08,580 INFO L225 Difference]: With dead ends: 680 [2023-11-23 07:20:08,580 INFO L226 Difference]: Without dead ends: 361 [2023-11-23 07:20:08,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:20:08,581 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 2 mSDsluCounter, 2972 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3404 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:20:08,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3404 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:20:08,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-23 07:20:08,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2023-11-23 07:20:08,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 239 states have (on average 1.3263598326359833) internal successors, (317), 243 states have internal predecessors, (317), 86 states have call successors, (86), 30 states have call predecessors, (86), 35 states have return successors, (103), 87 states have call predecessors, (103), 84 states have call successors, (103) [2023-11-23 07:20:08,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 506 transitions. [2023-11-23 07:20:08,594 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 506 transitions. Word has length 133 [2023-11-23 07:20:08,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:20:08,597 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 506 transitions. [2023-11-23 07:20:08,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 07:20:08,597 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 506 transitions. [2023-11-23 07:20:08,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-23 07:20:08,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:20:08,598 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:20:08,616 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 07:20:08,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:20:08,804 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:20:08,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:20:08,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1209388390, now seen corresponding path program 1 times [2023-11-23 07:20:08,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:20:08,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630104441] [2023-11-23 07:20:08,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:20:08,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:20:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:20:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:20:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:20:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:20:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:20:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 07:20:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 07:20:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 07:20:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 07:20:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:20:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 07:20:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 07:20:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 07:20:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 07:20:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 07:20:09,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 07:20:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 07:20:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:20:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 07:20:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:09,656 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-23 07:20:09,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:20:09,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630104441] [2023-11-23 07:20:09,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630104441] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:20:09,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82547243] [2023-11-23 07:20:09,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:20:09,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:20:09,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:20:09,658 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 07:20:09,682 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 07:20:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:10,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 2593 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-23 07:20:10,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:20:10,551 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-23 07:20:10,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:20:10,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82547243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:20:10,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:20:10,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 17 [2023-11-23 07:20:10,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54225142] [2023-11-23 07:20:10,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:20:10,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 07:20:10,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:20:10,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 07:20:10,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:20:10,553 INFO L87 Difference]: Start difference. First operand 361 states and 506 transitions. Second operand has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 3 states have call successors, (26), 2 states have call predecessors, (26), 6 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-23 07:20:11,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:20:11,527 INFO L93 Difference]: Finished difference Result 708 states and 990 transitions. [2023-11-23 07:20:11,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 07:20:11,527 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 3 states have call successors, (26), 2 states have call predecessors, (26), 6 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) Word has length 135 [2023-11-23 07:20:11,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:20:11,529 INFO L225 Difference]: With dead ends: 708 [2023-11-23 07:20:11,529 INFO L226 Difference]: Without dead ends: 365 [2023-11-23 07:20:11,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2023-11-23 07:20:11,531 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 3 mSDsluCounter, 4237 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4666 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 07:20:11,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4666 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 07:20:11,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-11-23 07:20:11,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 359. [2023-11-23 07:20:11,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 238 states have (on average 1.3277310924369747) internal successors, (316), 241 states have internal predecessors, (316), 86 states have call successors, (86), 30 states have call predecessors, (86), 34 states have return successors, (97), 87 states have call predecessors, (97), 84 states have call successors, (97) [2023-11-23 07:20:11,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 499 transitions. [2023-11-23 07:20:11,550 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 499 transitions. Word has length 135 [2023-11-23 07:20:11,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:20:11,551 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 499 transitions. [2023-11-23 07:20:11,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 3 states have call successors, (26), 2 states have call predecessors, (26), 6 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-23 07:20:11,552 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 499 transitions. [2023-11-23 07:20:11,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-23 07:20:11,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:20:11,553 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:20:11,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-23 07:20:11,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:20:11,769 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:20:11,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:20:11,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1028160225, now seen corresponding path program 2 times [2023-11-23 07:20:11,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:20:11,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961577188] [2023-11-23 07:20:11,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:20:11,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:20:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:20:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:20:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:20:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:20:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:20:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 07:20:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 07:20:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 07:20:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 07:20:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:20:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 07:20:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 07:20:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 07:20:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-23 07:20:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 07:20:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 07:20:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 07:20:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:20:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-23 07:20:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:12,927 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-11-23 07:20:12,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:20:12,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961577188] [2023-11-23 07:20:12,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961577188] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:20:12,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760083912] [2023-11-23 07:20:12,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:20:12,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:20:12,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:20:12,929 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 07:20:12,931 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 07:20:13,574 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:20:13,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:20:13,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 2597 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-23 07:20:13,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:20:13,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 07:20:13,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2023-11-23 07:20:13,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:20:13,826 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 28 treesize of output 23 [2023-11-23 07:20:13,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 07:20:14,417 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 100 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-23 07:20:14,418 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:20:14,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760083912] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:20:14,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:20:14,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 18] total 26 [2023-11-23 07:20:14,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016977805] [2023-11-23 07:20:14,961 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:20:14,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-23 07:20:14,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:20:14,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-23 07:20:14,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=849, Unknown=0, NotChecked=0, Total=930 [2023-11-23 07:20:14,963 INFO L87 Difference]: Start difference. First operand 359 states and 499 transitions. Second operand has 26 states, 20 states have (on average 5.0) internal successors, (100), 20 states have internal predecessors, (100), 8 states have call successors, (47), 6 states have call predecessors, (47), 9 states have return successors, (41), 8 states have call predecessors, (41), 8 states have call successors, (41) [2023-11-23 07:20:21,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:20:21,777 INFO L93 Difference]: Finished difference Result 788 states and 1105 transitions. [2023-11-23 07:20:21,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 07:20:21,778 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 20 states have (on average 5.0) internal successors, (100), 20 states have internal predecessors, (100), 8 states have call successors, (47), 6 states have call predecessors, (47), 9 states have return successors, (41), 8 states have call predecessors, (41), 8 states have call successors, (41) Word has length 137 [2023-11-23 07:20:21,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:20:21,780 INFO L225 Difference]: With dead ends: 788 [2023-11-23 07:20:21,780 INFO L226 Difference]: Without dead ends: 434 [2023-11-23 07:20:21,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=136, Invalid=1346, Unknown=0, NotChecked=0, Total=1482 [2023-11-23 07:20:21,782 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 575 mSDsluCounter, 2890 mSDsCounter, 0 mSdLazyCounter, 4180 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 3143 SdHoareTripleChecker+Invalid, 4506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 4180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:20:21,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 3143 Invalid, 4506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 4180 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-23 07:20:21,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-23 07:20:21,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 359. [2023-11-23 07:20:21,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 238 states have (on average 1.3277310924369747) internal successors, (316), 241 states have internal predecessors, (316), 86 states have call successors, (86), 30 states have call predecessors, (86), 34 states have return successors, (96), 87 states have call predecessors, (96), 84 states have call successors, (96) [2023-11-23 07:20:21,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 498 transitions. [2023-11-23 07:20:21,807 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 498 transitions. Word has length 137 [2023-11-23 07:20:21,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:20:21,807 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 498 transitions. [2023-11-23 07:20:21,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 20 states have (on average 5.0) internal successors, (100), 20 states have internal predecessors, (100), 8 states have call successors, (47), 6 states have call predecessors, (47), 9 states have return successors, (41), 8 states have call predecessors, (41), 8 states have call successors, (41) [2023-11-23 07:20:21,807 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 498 transitions. [2023-11-23 07:20:21,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-23 07:20:21,808 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:20:21,809 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:20:21,827 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 07:20:22,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:20:22,028 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:20:22,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:20:22,028 INFO L85 PathProgramCache]: Analyzing trace with hash -759735780, now seen corresponding path program 1 times [2023-11-23 07:20:22,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:20:22,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977013679] [2023-11-23 07:20:22,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:20:22,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:20:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:22,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:22,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:20:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:20:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 07:20:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-23 07:20:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:20:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 07:20:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:20:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:20:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 07:20:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 07:20:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:20:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:20:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 07:20:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 07:20:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 07:20:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 07:20:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 07:20:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 07:20:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:20:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-23 07:20:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,220 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-23 07:20:23,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:20:23,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977013679] [2023-11-23 07:20:23,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977013679] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:20:23,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519626386] [2023-11-23 07:20:23,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:20:23,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:20:23,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:20:23,222 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 07:20:23,246 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 07:20:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:23,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 2601 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:20:23,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:20:23,990 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-11-23 07:20:23,990 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:20:23,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519626386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:20:23,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:20:23,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 10 [2023-11-23 07:20:23,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442915200] [2023-11-23 07:20:23,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:20:23,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:20:23,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:20:23,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:20:23,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:20:23,992 INFO L87 Difference]: Start difference. First operand 359 states and 498 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-23 07:20:24,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:20:24,388 INFO L93 Difference]: Finished difference Result 712 states and 986 transitions. [2023-11-23 07:20:24,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:20:24,388 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 139 [2023-11-23 07:20:24,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:20:24,392 INFO L225 Difference]: With dead ends: 712 [2023-11-23 07:20:24,392 INFO L226 Difference]: Without dead ends: 361 [2023-11-23 07:20:24,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:20:24,394 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 2 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:20:24,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2102 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:20:24,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-23 07:20:24,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2023-11-23 07:20:24,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 239 states have (on average 1.3263598326359833) internal successors, (317), 243 states have internal predecessors, (317), 86 states have call successors, (86), 30 states have call predecessors, (86), 35 states have return successors, (97), 87 states have call predecessors, (97), 84 states have call successors, (97) [2023-11-23 07:20:24,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 500 transitions. [2023-11-23 07:20:24,415 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 500 transitions. Word has length 139 [2023-11-23 07:20:24,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:20:24,415 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 500 transitions. [2023-11-23 07:20:24,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-23 07:20:24,415 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 500 transitions. [2023-11-23 07:20:24,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-23 07:20:24,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:20:24,417 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:20:24,436 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 07:20:24,632 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,SelfDestructingSolverStorable9 [2023-11-23 07:20:24,632 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:20:24,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:20:24,633 INFO L85 PathProgramCache]: Analyzing trace with hash -322734413, now seen corresponding path program 1 times [2023-11-23 07:20:24,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:20:24,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729888369] [2023-11-23 07:20:24,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:20:24,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:20:24,699 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 07:20:24,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1922103356] [2023-11-23 07:20:24,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:20:24,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:20:24,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:20:24,700 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 07:20:24,723 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 07:20:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:20:26,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 2709 conjuncts, 245 conjunts are in the unsatisfiable core [2023-11-23 07:20:26,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:20:26,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-23 07:20:26,721 INFO L349 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2023-11-23 07:20:26,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2023-11-23 07:20:26,795 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-23 07:20:26,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 10 [2023-11-23 07:20:27,884 INFO L349 Elim1Store]: treesize reduction 598, result has 25.4 percent of original size [2023-11-23 07:20:27,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 43 case distinctions, treesize of input 202 treesize of output 408 [2023-11-23 07:20:36,604 INFO L349 Elim1Store]: treesize reduction 261, result has 9.1 percent of original size [2023-11-23 07:20:36,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 234 treesize of output 190 [2023-11-23 07:20:36,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:20:36,889 INFO L349 Elim1Store]: treesize reduction 211, result has 17.9 percent of original size [2023-11-23 07:20:36,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 54 treesize of output 66 [2023-11-23 07:20:37,018 INFO L349 Elim1Store]: treesize reduction 245, result has 0.4 percent of original size [2023-11-23 07:20:37,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 56 treesize of output 1 [2023-11-23 07:20:37,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:20:37,258 INFO L349 Elim1Store]: treesize reduction 1414, result has 0.1 percent of original size [2023-11-23 07:20:37,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 49 case distinctions, treesize of input 113 treesize of output 1 [2023-11-23 07:20:37,369 INFO L349 Elim1Store]: treesize reduction 1213, result has 0.1 percent of original size [2023-11-23 07:20:37,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 49 case distinctions, treesize of input 168 treesize of output 1 [2023-11-23 07:20:37,472 INFO L349 Elim1Store]: treesize reduction 1231, result has 0.1 percent of original size [2023-11-23 07:20:37,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 49 case distinctions, treesize of input 172 treesize of output 1 [2023-11-23 07:20:37,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:20:37,528 INFO L349 Elim1Store]: treesize reduction 256, result has 0.4 percent of original size [2023-11-23 07:20:37,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 54 treesize of output 1 [2023-11-23 07:20:37,644 INFO L349 Elim1Store]: treesize reduction 245, result has 0.4 percent of original size [2023-11-23 07:20:37,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 56 treesize of output 1 [2023-11-23 07:20:37,875 INFO L349 Elim1Store]: treesize reduction 118, result has 0.8 percent of original size [2023-11-23 07:20:37,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 46 treesize of output 1 [2023-11-23 07:20:38,141 INFO L349 Elim1Store]: treesize reduction 120, result has 13.7 percent of original size [2023-11-23 07:20:38,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 46 treesize of output 36 [2023-11-23 07:20:38,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:20:38,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:20:38,315 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:20:38,330 INFO L349 Elim1Store]: treesize reduction 157, result has 0.6 percent of original size [2023-11-23 07:20:38,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 49 treesize of output 1 [2023-11-23 07:20:38,476 INFO L349 Elim1Store]: treesize reduction 1386, result has 0.1 percent of original size [2023-11-23 07:20:38,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 50 case distinctions, treesize of input 513 treesize of output 1 [2023-11-23 07:21:47,155 WARN L293 SmtUtils]: Spent 6.57s on a formula simplification that was a NOOP. DAG size: 948 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Killed by 15