./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_string_eq_ignore_case_harness.i --full-output --preprocessor.use.memory.slicer false --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_string_eq_ignore_case_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 5c58e2434ae79fdf5f8dceab88ea2b6ad3f1a1a8bb44e2d930eaf759f64b3d29 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 09:12:35,914 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 09:12:36,017 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 09:12:36,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 09:12:36,021 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 09:12:36,045 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 09:12:36,046 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 09:12:36,047 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 09:12:36,047 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 09:12:36,051 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 09:12:36,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 09:12:36,052 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 09:12:36,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 09:12:36,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 09:12:36,054 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 09:12:36,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 09:12:36,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 09:12:36,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 09:12:36,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 09:12:36,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 09:12:36,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 09:12:36,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 09:12:36,057 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 09:12:36,057 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 09:12:36,058 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 09:12:36,058 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 09:12:36,058 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 09:12:36,058 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 09:12:36,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 09:12:36,059 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 09:12:36,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 09:12:36,060 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 09:12:36,060 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 09:12:36,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 09:12:36,061 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 09:12:36,061 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 09:12:36,061 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 09:12:36,062 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 09:12:36,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 09:12:36,062 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c58e2434ae79fdf5f8dceab88ea2b6ad3f1a1a8bb44e2d930eaf759f64b3d29 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 09:12:36,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 09:12:36,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 09:12:36,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 09:12:36,361 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 09:12:36,362 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 09:12:36,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_string_eq_ignore_case_harness.i [2023-11-23 09:12:37,667 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 09:12:38,261 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 09:12:38,262 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_eq_ignore_case_harness.i [2023-11-23 09:12:38,309 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b54bb04fb/4242d225fef046ac98fcfb459c5158b4/FLAGfd29ec33c [2023-11-23 09:12:38,325 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b54bb04fb/4242d225fef046ac98fcfb459c5158b4 [2023-11-23 09:12:38,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 09:12:38,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 09:12:38,334 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 09:12:38,334 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 09:12:38,339 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 09:12:38,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:38" (1/1) ... [2023-11-23 09:12:38,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8301d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:38, skipping insertion in model container [2023-11-23 09:12:38,341 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:38" (1/1) ... [2023-11-23 09:12:38,452 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 09:12:38,773 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_string_eq_ignore_case_harness.i[4499,4512] [2023-11-23 09:12:38,800 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_string_eq_ignore_case_harness.i[4559,4572] [2023-11-23 09:12:39,675 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:39,683 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:39,684 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:39,684 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:39,686 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:39,698 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:39,699 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:39,701 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:39,701 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:40,056 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 09:12:40,058 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 09:12:40,059 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 09:12:40,061 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 09:12:40,066 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 09:12:40,067 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 09:12:40,067 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 09:12:40,068 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 09:12:40,070 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 09:12:40,072 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 09:12:40,316 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:40,317 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:40,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 09:12:40,398 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 09:12:40,418 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_string_eq_ignore_case_harness.i[4499,4512] [2023-11-23 09:12:40,418 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_string_eq_ignore_case_harness.i[4559,4572] [2023-11-23 09:12:40,469 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:40,469 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:40,469 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:40,470 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:40,474 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:40,486 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:40,490 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:40,492 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:40,494 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:40,527 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 09:12:40,528 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 09:12:40,528 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 09:12:40,535 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 09:12:40,537 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 09:12:40,537 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 09:12:40,538 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 09:12:40,538 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 09:12:40,539 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 09:12:40,539 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 09:12:40,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8588] [2023-11-23 09:12:40,694 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:40,695 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:12:40,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 09:12:40,839 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,840 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,840 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,840 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,840 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,840 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,840 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,841 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,841 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,841 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,841 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,841 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,842 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,842 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,842 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,843 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,843 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:12:40,850 INFO L206 MainTranslator]: Completed translation [2023-11-23 09:12:40,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:40 WrapperNode [2023-11-23 09:12:40,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 09:12:40,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 09:12:40,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 09:12:40,853 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 09:12:40,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:40" (1/1) ... [2023-11-23 09:12:40,991 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:40" (1/1) ... [2023-11-23 09:12:41,051 INFO L138 Inliner]: procedures = 680, calls = 2274, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 368 [2023-11-23 09:12:41,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 09:12:41,052 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 09:12:41,054 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 09:12:41,054 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 09:12:41,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:40" (1/1) ... [2023-11-23 09:12:41,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:40" (1/1) ... [2023-11-23 09:12:41,073 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:40" (1/1) ... [2023-11-23 09:12:41,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:40" (1/1) ... [2023-11-23 09:12:41,110 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:40" (1/1) ... [2023-11-23 09:12:41,113 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:40" (1/1) ... [2023-11-23 09:12:41,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:40" (1/1) ... [2023-11-23 09:12:41,134 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:40" (1/1) ... [2023-11-23 09:12:41,141 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 09:12:41,151 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 09:12:41,151 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 09:12:41,151 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 09:12:41,152 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:40" (1/1) ... [2023-11-23 09:12:41,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 09:12:41,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:12:41,185 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 09:12:41,209 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 09:12:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2023-11-23 09:12:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2023-11-23 09:12:41,237 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2023-11-23 09:12:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2023-11-23 09:12:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2023-11-23 09:12:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2023-11-23 09:12:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 09:12:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 09:12:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 09:12:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 09:12:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 09:12:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 09:12:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 09:12:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 09:12:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 09:12:41,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 09:12:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 09:12:41,241 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 09:12:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 09:12:41,241 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 09:12:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 09:12:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 09:12:41,241 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 09:12:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 09:12:41,242 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 09:12:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 09:12:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 09:12:41,498 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 09:12:41,499 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 09:12:41,835 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 09:12:41,903 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 09:12:41,903 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 09:12:41,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:41 BoogieIcfgContainer [2023-11-23 09:12:41,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 09:12:41,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 09:12:41,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 09:12:41,908 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 09:12:41,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:12:38" (1/3) ... [2023-11-23 09:12:41,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a3a7d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:41, skipping insertion in model container [2023-11-23 09:12:41,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:40" (2/3) ... [2023-11-23 09:12:41,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a3a7d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:41, skipping insertion in model container [2023-11-23 09:12:41,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:41" (3/3) ... [2023-11-23 09:12:41,915 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_ignore_case_harness.i [2023-11-23 09:12:41,931 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 09:12:41,931 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 09:12:41,977 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 09:12:41,983 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;@5862c75a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 09:12:41,983 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 09:12:41,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 53 states have (on average 1.320754716981132) internal successors, (70), 54 states have internal predecessors, (70), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 09:12:42,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-23 09:12:42,022 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:12:42,023 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-23 09:12:42,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:12:42,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:12:42,032 INFO L85 PathProgramCache]: Analyzing trace with hash 896755737, now seen corresponding path program 1 times [2023-11-23 09:12:42,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:12:42,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676387495] [2023-11-23 09:12:42,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:12:42,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:12:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:42,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:42,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 09:12:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:42,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 09:12:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:42,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 09:12:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:42,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-23 09:12:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:42,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 09:12:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:42,614 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 09:12:42,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:12:42,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676387495] [2023-11-23 09:12:42,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676387495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:12:42,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:12:42,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 09:12:42,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333257348] [2023-11-23 09:12:42,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:12:42,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 09:12:42,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:12:42,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 09:12:42,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 09:12:42,651 INFO L87 Difference]: Start difference. First operand has 87 states, 53 states have (on average 1.320754716981132) internal successors, (70), 54 states have internal predecessors, (70), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 09:12:42,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:12:42,746 INFO L93 Difference]: Finished difference Result 170 states and 238 transitions. [2023-11-23 09:12:42,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 09:12:42,749 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2023-11-23 09:12:42,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:12:42,760 INFO L225 Difference]: With dead ends: 170 [2023-11-23 09:12:42,760 INFO L226 Difference]: Without dead ends: 84 [2023-11-23 09:12:42,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 09:12:42,773 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:12:42,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 09:12:42,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-23 09:12:42,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-23 09:12:42,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 52 states have internal predecessors, (64), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 09:12:42,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2023-11-23 09:12:42,830 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 43 [2023-11-23 09:12:42,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:12:42,837 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2023-11-23 09:12:42,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 09:12:42,837 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2023-11-23 09:12:42,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-23 09:12:42,842 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:12:42,842 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-23 09:12:42,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 09:12:42,843 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:12:42,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:12:42,844 INFO L85 PathProgramCache]: Analyzing trace with hash -956840359, now seen corresponding path program 1 times [2023-11-23 09:12:42,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:12:42,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218812851] [2023-11-23 09:12:42,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:12:42,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:12:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:43,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:43,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 09:12:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:43,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 09:12:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:43,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 09:12:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:43,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-23 09:12:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:43,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 09:12:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:43,275 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 09:12:43,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:12:43,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218812851] [2023-11-23 09:12:43,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218812851] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:12:43,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:12:43,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:12:43,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940068381] [2023-11-23 09:12:43,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:12:43,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:12:43,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:12:43,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:12:43,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:12:43,279 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-23 09:12:43,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:12:43,345 INFO L93 Difference]: Finished difference Result 127 states and 169 transitions. [2023-11-23 09:12:43,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 09:12:43,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 43 [2023-11-23 09:12:43,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:12:43,348 INFO L225 Difference]: With dead ends: 127 [2023-11-23 09:12:43,348 INFO L226 Difference]: Without dead ends: 84 [2023-11-23 09:12:43,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:12:43,349 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 10 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 09:12:43,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 290 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 09:12:43,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-23 09:12:43,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-23 09:12:43,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 52 states have internal predecessors, (63), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 09:12:43,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 108 transitions. [2023-11-23 09:12:43,362 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 108 transitions. Word has length 43 [2023-11-23 09:12:43,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:12:43,362 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 108 transitions. [2023-11-23 09:12:43,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-23 09:12:43,362 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 108 transitions. [2023-11-23 09:12:43,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-23 09:12:43,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:12:43,365 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:12:43,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 09:12:43,365 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:12:43,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:12:43,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1712287933, now seen corresponding path program 1 times [2023-11-23 09:12:43,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:12:43,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733268559] [2023-11-23 09:12:43,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:12:43,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:12:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:43,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:43,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:12:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:44,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:44,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:12:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:44,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 09:12:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:44,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:44,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 09:12:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:44,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 09:12:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:44,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 09:12:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:44,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 09:12:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:44,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 09:12:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:44,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 09:12:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:44,208 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-23 09:12:44,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:12:44,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733268559] [2023-11-23 09:12:44,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733268559] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:12:44,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:12:44,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-23 09:12:44,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358539078] [2023-11-23 09:12:44,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:12:44,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 09:12:44,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:12:44,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 09:12:44,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-23 09:12:44,212 INFO L87 Difference]: Start difference. First operand 84 states and 108 transitions. Second operand has 13 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 9 states have internal predecessors, (35), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-23 09:12:44,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:12:44,787 INFO L93 Difference]: Finished difference Result 116 states and 151 transitions. [2023-11-23 09:12:44,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 09:12:44,788 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 9 states have internal predecessors, (35), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) Word has length 72 [2023-11-23 09:12:44,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:12:44,792 INFO L225 Difference]: With dead ends: 116 [2023-11-23 09:12:44,792 INFO L226 Difference]: Without dead ends: 84 [2023-11-23 09:12:44,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-23 09:12:44,801 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 101 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:12:44,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 523 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:12:44,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-23 09:12:44,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-23 09:12:44,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 52 states have internal predecessors, (62), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 09:12:44,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 107 transitions. [2023-11-23 09:12:44,821 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 107 transitions. Word has length 72 [2023-11-23 09:12:44,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:12:44,822 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 107 transitions. [2023-11-23 09:12:44,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 9 states have internal predecessors, (35), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-23 09:12:44,824 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 107 transitions. [2023-11-23 09:12:44,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 09:12:44,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:12:44,828 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2023-11-23 09:12:44,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 09:12:44,829 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:12:44,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:12:44,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1963553231, now seen corresponding path program 1 times [2023-11-23 09:12:44,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:12:44,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117000972] [2023-11-23 09:12:44,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:12:44,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:12:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:45,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:45,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:12:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:45,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:45,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:12:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:45,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 09:12:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:45,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:45,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 09:12:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:45,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 09:12:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:45,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 09:12:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:45,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 09:12:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:46,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 09:12:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:46,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 09:12:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:46,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 09:12:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:46,202 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-23 09:12:46,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:12:46,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117000972] [2023-11-23 09:12:46,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117000972] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 09:12:46,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658975816] [2023-11-23 09:12:46,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:12:46,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:12:46,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:12:46,240 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 09:12:46,316 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 09:12:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:46,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 09:12:46,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:12:47,098 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 09:12:47,099 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:12:47,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658975816] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:12:47,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 09:12:47,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [16] total 28 [2023-11-23 09:12:47,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511209065] [2023-11-23 09:12:47,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:12:47,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 09:12:47,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:12:47,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 09:12:47,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2023-11-23 09:12:47,102 INFO L87 Difference]: Start difference. First operand 84 states and 107 transitions. Second operand has 14 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 5 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-23 09:12:47,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:12:47,419 INFO L93 Difference]: Finished difference Result 135 states and 176 transitions. [2023-11-23 09:12:47,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 09:12:47,420 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 5 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 80 [2023-11-23 09:12:47,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:12:47,422 INFO L225 Difference]: With dead ends: 135 [2023-11-23 09:12:47,422 INFO L226 Difference]: Without dead ends: 89 [2023-11-23 09:12:47,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=103, Invalid=953, Unknown=0, NotChecked=0, Total=1056 [2023-11-23 09:12:47,424 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 46 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:12:47,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 902 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:12:47,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-23 09:12:47,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2023-11-23 09:12:47,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 54 states have (on average 1.2222222222222223) internal successors, (66), 56 states have internal predecessors, (66), 23 states have call successors, (23), 9 states have call predecessors, (23), 10 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2023-11-23 09:12:47,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 113 transitions. [2023-11-23 09:12:47,434 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 113 transitions. Word has length 80 [2023-11-23 09:12:47,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:12:47,437 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 113 transitions. [2023-11-23 09:12:47,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 5 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-23 09:12:47,437 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 113 transitions. [2023-11-23 09:12:47,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 09:12:47,441 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:12:47,442 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2023-11-23 09:12:47,468 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 09:12:47,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:12:47,668 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:12:47,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:12:47,669 INFO L85 PathProgramCache]: Analyzing trace with hash -513054005, now seen corresponding path program 1 times [2023-11-23 09:12:47,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:12:47,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792359607] [2023-11-23 09:12:47,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:12:47,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:12:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:48,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:48,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:12:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:48,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:48,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:48,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:12:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:48,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 09:12:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:48,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:48,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 09:12:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:48,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 09:12:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:48,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 09:12:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:48,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 09:12:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:48,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 09:12:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:48,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 09:12:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:48,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 09:12:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:48,345 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 09:12:48,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:12:48,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792359607] [2023-11-23 09:12:48,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792359607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:12:48,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:12:48,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-23 09:12:48,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927471880] [2023-11-23 09:12:48,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:12:48,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 09:12:48,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:12:48,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 09:12:48,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-23 09:12:48,348 INFO L87 Difference]: Start difference. First operand 88 states and 113 transitions. Second operand has 15 states, 13 states have (on average 2.769230769230769) internal successors, (36), 11 states have internal predecessors, (36), 6 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-23 09:12:48,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:12:48,824 INFO L93 Difference]: Finished difference Result 120 states and 154 transitions. [2023-11-23 09:12:48,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 09:12:48,825 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.769230769230769) internal successors, (36), 11 states have internal predecessors, (36), 6 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) Word has length 80 [2023-11-23 09:12:48,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:12:48,826 INFO L225 Difference]: With dead ends: 120 [2023-11-23 09:12:48,826 INFO L226 Difference]: Without dead ends: 95 [2023-11-23 09:12:48,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2023-11-23 09:12:48,827 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 76 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:12:48,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 413 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 09:12:48,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-23 09:12:48,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91. [2023-11-23 09:12:48,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 58 states have internal predecessors, (68), 24 states have call successors, (24), 9 states have call predecessors, (24), 10 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) [2023-11-23 09:12:48,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 117 transitions. [2023-11-23 09:12:48,837 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 117 transitions. Word has length 80 [2023-11-23 09:12:48,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:12:48,838 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 117 transitions. [2023-11-23 09:12:48,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.769230769230769) internal successors, (36), 11 states have internal predecessors, (36), 6 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-23 09:12:48,838 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 117 transitions. [2023-11-23 09:12:48,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-23 09:12:48,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:12:48,839 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2023-11-23 09:12:48,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 09:12:48,840 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:12:48,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:12:48,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1591216307, now seen corresponding path program 1 times [2023-11-23 09:12:48,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:12:48,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393650684] [2023-11-23 09:12:48,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:12:48,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:12:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:12:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:12:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 09:12:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 09:12:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 09:12:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 09:12:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 09:12:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 09:12:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 09:12:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 09:12:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,218 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 09:12:49,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:12:49,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393650684] [2023-11-23 09:12:49,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393650684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:12:49,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:12:49,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 09:12:49,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65124893] [2023-11-23 09:12:49,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:12:49,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 09:12:49,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:12:49,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 09:12:49,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:12:49,221 INFO L87 Difference]: Start difference. First operand 91 states and 117 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 4 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-23 09:12:49,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:12:49,505 INFO L93 Difference]: Finished difference Result 134 states and 170 transitions. [2023-11-23 09:12:49,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:12:49,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 4 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 81 [2023-11-23 09:12:49,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:12:49,507 INFO L225 Difference]: With dead ends: 134 [2023-11-23 09:12:49,507 INFO L226 Difference]: Without dead ends: 88 [2023-11-23 09:12:49,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:12:49,508 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 78 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:12:49,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 207 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:12:49,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-23 09:12:49,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-23 09:12:49,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 56 states have internal predecessors, (65), 23 states have call successors, (23), 9 states have call predecessors, (23), 10 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2023-11-23 09:12:49,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 112 transitions. [2023-11-23 09:12:49,517 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 112 transitions. Word has length 81 [2023-11-23 09:12:49,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:12:49,517 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 112 transitions. [2023-11-23 09:12:49,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 4 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-23 09:12:49,517 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 112 transitions. [2023-11-23 09:12:49,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-23 09:12:49,518 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:12:49,518 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:12:49,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 09:12:49,519 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:12:49,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:12:49,519 INFO L85 PathProgramCache]: Analyzing trace with hash 101688059, now seen corresponding path program 1 times [2023-11-23 09:12:49,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:12:49,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813701173] [2023-11-23 09:12:49,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:12:49,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:12:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:49,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:12:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:50,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:50,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:12:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:50,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 09:12:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:50,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:12:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:50,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 09:12:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:50,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 09:12:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:50,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 09:12:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:50,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 09:12:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:50,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 09:12:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:50,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 09:12:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:50,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 09:12:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:50,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 09:12:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:50,247 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-23 09:12:50,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:12:50,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813701173] [2023-11-23 09:12:50,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813701173] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 09:12:50,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379217699] [2023-11-23 09:12:50,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:12:50,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:12:50,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:12:50,249 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 09:12:50,254 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 09:12:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:12:50,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 09:12:50,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:12:50,815 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-23 09:12:50,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:12:50,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379217699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:12:50,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 09:12:50,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [17] total 30 [2023-11-23 09:12:50,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825802733] [2023-11-23 09:12:50,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:12:50,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 09:12:50,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:12:50,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 09:12:50,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2023-11-23 09:12:50,818 INFO L87 Difference]: Start difference. First operand 88 states and 112 transitions. Second operand has 15 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-23 09:12:51,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:12:51,148 INFO L93 Difference]: Finished difference Result 122 states and 155 transitions. [2023-11-23 09:12:51,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 09:12:51,148 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) Word has length 88 [2023-11-23 09:12:51,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:12:51,149 INFO L225 Difference]: With dead ends: 122 [2023-11-23 09:12:51,149 INFO L226 Difference]: Without dead ends: 97 [2023-11-23 09:12:51,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=1144, Unknown=0, NotChecked=0, Total=1260 [2023-11-23 09:12:51,151 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 46 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:12:51,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 960 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:12:51,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-23 09:12:51,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 92. [2023-11-23 09:12:51,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 57 states have (on average 1.1929824561403508) internal successors, (68), 58 states have internal predecessors, (68), 24 states have call successors, (24), 9 states have call predecessors, (24), 10 states have return successors, (25), 24 states have call predecessors, (25), 23 states have call successors, (25) [2023-11-23 09:12:51,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 117 transitions. [2023-11-23 09:12:51,165 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 117 transitions. Word has length 88 [2023-11-23 09:12:51,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:12:51,166 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 117 transitions. [2023-11-23 09:12:51,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-23 09:12:51,166 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 117 transitions. [2023-11-23 09:12:51,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-23 09:12:51,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:12:51,168 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:12:51,187 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 09:12:51,387 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,SelfDestructingSolverStorable6 [2023-11-23 09:12:51,388 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:12:51,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:12:51,388 INFO L85 PathProgramCache]: Analyzing trace with hash 235701565, now seen corresponding path program 1 times [2023-11-23 09:12:51,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:12:51,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741473791] [2023-11-23 09:12:51,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:12:51,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:12:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat