./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_top_harness_negated.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_priority_queue_top_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dfa32066ca560959d21c25566526b130eb2e322194b3e03aea81a52c7e7f41c7 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 09:04:27,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 09:04:28,035 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 09:04:28,045 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 09:04:28,046 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 09:04:28,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 09:04:28,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 09:04:28,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 09:04:28,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 09:04:28,077 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 09:04:28,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 09:04:28,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 09:04:28,078 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 09:04:28,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 09:04:28,080 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 09:04:28,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 09:04:28,080 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 09:04:28,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 09:04:28,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 09:04:28,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 09:04:28,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 09:04:28,081 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 09:04:28,081 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 09:04:28,082 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 09:04:28,082 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 09:04:28,082 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 09:04:28,083 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 09:04:28,083 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 09:04:28,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 09:04:28,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 09:04:28,084 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 09:04:28,084 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 09:04:28,085 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 09:04:28,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 09:04:28,085 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 09:04:28,085 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 09:04:28,085 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 09:04:28,085 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 09:04:28,086 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 09:04:28,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa32066ca560959d21c25566526b130eb2e322194b3e03aea81a52c7e7f41c7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 09:04:28,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 09:04:28,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 09:04:28,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 09:04:28,331 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 09:04:28,332 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 09:04:28,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_top_harness_negated.i [2023-11-23 09:04:29,546 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 09:04:29,903 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 09:04:29,903 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_top_harness_negated.i [2023-11-23 09:04:29,934 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2a6c7ee4/5606d53c9bc845279b1b90a5bbaedc25/FLAGf24ddf181 [2023-11-23 09:04:29,951 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2a6c7ee4/5606d53c9bc845279b1b90a5bbaedc25 [2023-11-23 09:04:29,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 09:04:29,957 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 09:04:29,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 09:04:29,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 09:04:29,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 09:04:29,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:04:29" (1/1) ... [2023-11-23 09:04:29,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34616330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:04:29, skipping insertion in model container [2023-11-23 09:04:29,966 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:04:29" (1/1) ... [2023-11-23 09:04:30,049 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 09:04:30,243 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_priority_queue_top_harness_negated.i[4496,4509] [2023-11-23 09:04:30,250 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_priority_queue_top_harness_negated.i[4556,4569] [2023-11-23 09:04:30,769 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:30,780 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:30,781 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:30,781 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:30,783 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:30,790 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:30,793 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:30,795 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:30,796 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:31,005 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 09:04:31,006 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 09:04:31,008 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 09:04:31,010 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 09:04:31,019 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 09:04:31,020 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 09:04:31,021 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 09:04:31,024 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 09:04:31,025 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 09:04:31,027 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 09:04:31,118 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:31,119 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:31,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 09:04:31,175 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 09:04:31,185 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_priority_queue_top_harness_negated.i[4496,4509] [2023-11-23 09:04:31,186 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_priority_queue_top_harness_negated.i[4556,4569] [2023-11-23 09:04:31,218 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:31,218 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:31,218 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:31,219 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:31,219 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:31,224 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:31,225 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:31,225 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:31,226 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:31,326 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 09:04:31,327 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 09:04:31,327 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 09:04:31,328 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 09:04:31,328 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 09:04:31,329 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 09:04:31,329 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 09:04:31,329 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 09:04:31,330 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 09:04:31,330 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 09:04:31,373 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:31,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:04:31,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7671-7682] [2023-11-23 09:04:31,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 09:04:31,509 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:04:31,509 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:04:31,510 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:04:31,510 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:04:31,510 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:04:31,510 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:04:31,510 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:04:31,510 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:04:31,511 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:04:31,511 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:04:31,511 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:04:31,511 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:04:31,511 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:04:31,512 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:04:31,512 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:04:31,518 INFO L206 MainTranslator]: Completed translation [2023-11-23 09:04:31,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:04:31 WrapperNode [2023-11-23 09:04:31,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 09:04:31,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 09:04:31,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 09:04:31,520 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 09:04:31,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:04:31" (1/1) ... [2023-11-23 09:04:31,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:04:31" (1/1) ... [2023-11-23 09:04:31,656 INFO L138 Inliner]: procedures = 688, calls = 1537, calls flagged for inlining = 55, calls inlined = 11, statements flattened = 718 [2023-11-23 09:04:31,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 09:04:31,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 09:04:31,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 09:04:31,660 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 09:04:31,668 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:04:31" (1/1) ... [2023-11-23 09:04:31,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:04:31" (1/1) ... [2023-11-23 09:04:31,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:04:31" (1/1) ... [2023-11-23 09:04:31,676 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:04:31" (1/1) ... [2023-11-23 09:04:31,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:04:31" (1/1) ... [2023-11-23 09:04:31,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:04:31" (1/1) ... [2023-11-23 09:04:31,714 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:04:31" (1/1) ... [2023-11-23 09:04:31,717 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:04:31" (1/1) ... [2023-11-23 09:04:31,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 09:04:31,723 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 09:04:31,723 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 09:04:31,723 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 09:04:31,724 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:04:31" (1/1) ... [2023-11-23 09:04:31,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 09:04:31,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:04:31,750 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 09:04:31,774 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 09:04:31,801 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-23 09:04:31,802 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-23 09:04:31,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 09:04:31,802 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 09:04:31,802 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 09:04:31,802 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 09:04:31,803 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 09:04:31,803 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 09:04:31,803 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 09:04:31,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 09:04:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 09:04:31,804 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 09:04:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 09:04:31,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 09:04:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 09:04:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 09:04:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-23 09:04:31,805 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-23 09:04:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 09:04:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 09:04:31,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 09:04:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 09:04:31,805 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 09:04:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-23 09:04:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-23 09:04:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 09:04:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 09:04:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-23 09:04:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-23 09:04:31,806 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-23 09:04:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-23 09:04:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 09:04:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 09:04:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 09:04:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 09:04:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 09:04:31,807 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 09:04:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 09:04:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 09:04:31,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 09:04:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 09:04:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2023-11-23 09:04:31,808 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2023-11-23 09:04:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 09:04:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 09:04:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 09:04:32,121 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 09:04:32,122 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 09:04:32,676 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 09:04:32,824 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 09:04:32,825 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 09:04:32,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:04:32 BoogieIcfgContainer [2023-11-23 09:04:32,826 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 09:04:32,828 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 09:04:32,828 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 09:04:32,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 09:04:32,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:04:29" (1/3) ... [2023-11-23 09:04:32,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61400a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:04:32, skipping insertion in model container [2023-11-23 09:04:32,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:04:31" (2/3) ... [2023-11-23 09:04:32,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61400a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:04:32, skipping insertion in model container [2023-11-23 09:04:32,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:04:32" (3/3) ... [2023-11-23 09:04:32,838 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_top_harness_negated.i [2023-11-23 09:04:32,854 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 09:04:32,854 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 09:04:32,910 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 09:04:32,919 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;@748fd4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 09:04:32,919 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 09:04:32,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 107 states have (on average 1.2710280373831775) internal successors, (136), 107 states have internal predecessors, (136), 50 states have call successors, (50), 17 states have call predecessors, (50), 17 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-23 09:04:32,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-23 09:04:32,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:04:32,943 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:04:32,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:04:32,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:04:32,950 INFO L85 PathProgramCache]: Analyzing trace with hash -637886797, now seen corresponding path program 1 times [2023-11-23 09:04:32,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:04:32,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636843512] [2023-11-23 09:04:32,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:32,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:04:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:04:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:04:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:04:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 09:04:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:04:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:04:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 09:04:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:04:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:04:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 09:04:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 09:04:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 09:04:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 09:04:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 09:04:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:04:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-23 09:04:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 09:04:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 09:04:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 09:04:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:33,691 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-23 09:04:33,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:04:33,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636843512] [2023-11-23 09:04:33,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636843512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:04:33,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:04:33,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:04:33,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032418982] [2023-11-23 09:04:33,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:04:33,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:04:33,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:04:33,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:04:33,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:04:33,721 INFO L87 Difference]: Start difference. First operand has 175 states, 107 states have (on average 1.2710280373831775) internal successors, (136), 107 states have internal predecessors, (136), 50 states have call successors, (50), 17 states have call predecessors, (50), 17 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 09:04:34,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:04:34,590 INFO L93 Difference]: Finished difference Result 409 states and 619 transitions. [2023-11-23 09:04:34,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:04:34,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 110 [2023-11-23 09:04:34,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:04:34,606 INFO L225 Difference]: With dead ends: 409 [2023-11-23 09:04:34,607 INFO L226 Difference]: Without dead ends: 240 [2023-11-23 09:04:34,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:04:34,618 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 136 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 09:04:34,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 324 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 09:04:34,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-11-23 09:04:34,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 173. [2023-11-23 09:04:34,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 105 states have (on average 1.2380952380952381) internal successors, (130), 106 states have internal predecessors, (130), 50 states have call successors, (50), 17 states have call predecessors, (50), 17 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-23 09:04:34,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 229 transitions. [2023-11-23 09:04:34,714 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 229 transitions. Word has length 110 [2023-11-23 09:04:34,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:04:34,714 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 229 transitions. [2023-11-23 09:04:34,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 09:04:34,715 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 229 transitions. [2023-11-23 09:04:34,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-23 09:04:34,721 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:04:34,722 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:04:34,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 09:04:34,722 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:04:34,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:04:34,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1828305661, now seen corresponding path program 1 times [2023-11-23 09:04:34,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:04:34,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033207649] [2023-11-23 09:04:34,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:34,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:04:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:04:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:04:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:04:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 09:04:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:04:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:04:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 09:04:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:04:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:04:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 09:04:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 09:04:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 09:04:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 09:04:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 09:04:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:04:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-23 09:04:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 09:04:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 09:04:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 09:04:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:35,347 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-23 09:04:35,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:04:35,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033207649] [2023-11-23 09:04:35,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033207649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:04:35,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:04:35,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 09:04:35,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618846567] [2023-11-23 09:04:35,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:04:35,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 09:04:35,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:04:35,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 09:04:35,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:04:35,350 INFO L87 Difference]: Start difference. First operand 173 states and 229 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 09:04:36,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:04:36,361 INFO L93 Difference]: Finished difference Result 382 states and 536 transitions. [2023-11-23 09:04:36,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 09:04:36,362 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 110 [2023-11-23 09:04:36,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:04:36,364 INFO L225 Difference]: With dead ends: 382 [2023-11-23 09:04:36,365 INFO L226 Difference]: Without dead ends: 240 [2023-11-23 09:04:36,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:04:36,366 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 378 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 09:04:36,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 536 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 09:04:36,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-11-23 09:04:36,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 173. [2023-11-23 09:04:36,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 105 states have (on average 1.2285714285714286) internal successors, (129), 106 states have internal predecessors, (129), 50 states have call successors, (50), 17 states have call predecessors, (50), 17 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-23 09:04:36,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 228 transitions. [2023-11-23 09:04:36,394 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 228 transitions. Word has length 110 [2023-11-23 09:04:36,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:04:36,395 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 228 transitions. [2023-11-23 09:04:36,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 09:04:36,400 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 228 transitions. [2023-11-23 09:04:36,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-23 09:04:36,404 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:04:36,404 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:04:36,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 09:04:36,404 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:04:36,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:04:36,405 INFO L85 PathProgramCache]: Analyzing trace with hash -595783765, now seen corresponding path program 1 times [2023-11-23 09:04:36,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:04:36,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150261974] [2023-11-23 09:04:36,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:36,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:04:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:36,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:04:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:36,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:04:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:36,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:04:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:36,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 09:04:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:36,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:04:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:36,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:04:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:36,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 09:04:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:36,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:04:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:36,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:04:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:36,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 09:04:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:36,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 09:04:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:36,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 09:04:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:37,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 09:04:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:37,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 09:04:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:37,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 09:04:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:37,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:04:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:37,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 09:04:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:37,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 09:04:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:37,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 09:04:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:37,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 09:04:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-11-23 09:04:37,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:04:37,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150261974] [2023-11-23 09:04:37,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150261974] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 09:04:37,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551939429] [2023-11-23 09:04:37,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:37,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:37,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:04:37,087 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 09:04:37,096 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 09:04:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:37,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 2385 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 09:04:37,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:04:37,624 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-23 09:04:37,625 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:04:37,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551939429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:04:37,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 09:04:37,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2023-11-23 09:04:37,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714631881] [2023-11-23 09:04:37,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:04:37,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 09:04:37,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:04:37,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 09:04:37,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-11-23 09:04:37,628 INFO L87 Difference]: Start difference. First operand 173 states and 228 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-23 09:04:38,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:04:38,116 INFO L93 Difference]: Finished difference Result 334 states and 450 transitions. [2023-11-23 09:04:38,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:04:38,116 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 118 [2023-11-23 09:04:38,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:04:38,118 INFO L225 Difference]: With dead ends: 334 [2023-11-23 09:04:38,118 INFO L226 Difference]: Without dead ends: 175 [2023-11-23 09:04:38,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2023-11-23 09:04:38,119 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 78 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:04:38,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1135 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 09:04:38,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-11-23 09:04:38,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2023-11-23 09:04:38,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 106 states have (on average 1.2264150943396226) internal successors, (130), 108 states have internal predecessors, (130), 50 states have call successors, (50), 17 states have call predecessors, (50), 18 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2023-11-23 09:04:38,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 235 transitions. [2023-11-23 09:04:38,133 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 235 transitions. Word has length 118 [2023-11-23 09:04:38,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:04:38,133 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 235 transitions. [2023-11-23 09:04:38,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-23 09:04:38,134 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 235 transitions. [2023-11-23 09:04:38,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 09:04:38,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:04:38,135 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:04:38,165 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 09:04:38,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:38,366 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:04:38,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:04:38,366 INFO L85 PathProgramCache]: Analyzing trace with hash 2119373803, now seen corresponding path program 1 times [2023-11-23 09:04:38,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:04:38,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619715174] [2023-11-23 09:04:38,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:38,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:04:38,427 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:04:38,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2143108422] [2023-11-23 09:04:38,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:38,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:38,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:04:38,445 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 09:04:38,462 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 09:04:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:38,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 2519 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 09:04:38,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:04:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-11-23 09:04:38,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:04:38,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:04:38,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619715174] [2023-11-23 09:04:38,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:04:38,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143108422] [2023-11-23 09:04:38,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143108422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:04:38,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:04:38,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:04:38,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911603359] [2023-11-23 09:04:38,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:04:38,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:04:38,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:04:38,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:04:38,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:04:38,940 INFO L87 Difference]: Start difference. First operand 175 states and 235 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 09:04:39,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:04:39,081 INFO L93 Difference]: Finished difference Result 322 states and 445 transitions. [2023-11-23 09:04:39,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:04:39,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 131 [2023-11-23 09:04:39,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:04:39,084 INFO L225 Difference]: With dead ends: 322 [2023-11-23 09:04:39,084 INFO L226 Difference]: Without dead ends: 180 [2023-11-23 09:04:39,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 09:04:39,087 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 10 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:04:39,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 632 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 09:04:39,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-23 09:04:39,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 177. [2023-11-23 09:04:39,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 108 states have (on average 1.2222222222222223) internal successors, (132), 110 states have internal predecessors, (132), 50 states have call successors, (50), 17 states have call predecessors, (50), 18 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2023-11-23 09:04:39,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 237 transitions. [2023-11-23 09:04:39,108 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 237 transitions. Word has length 131 [2023-11-23 09:04:39,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:04:39,110 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 237 transitions. [2023-11-23 09:04:39,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 09:04:39,110 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 237 transitions. [2023-11-23 09:04:39,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 09:04:39,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:04:39,114 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:04:39,131 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 09:04:39,328 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,SelfDestructingSolverStorable3 [2023-11-23 09:04:39,330 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:04:39,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:04:39,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1165433645, now seen corresponding path program 1 times [2023-11-23 09:04:39,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:04:39,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343306620] [2023-11-23 09:04:39,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:39,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:04:39,384 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:04:39,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [343058739] [2023-11-23 09:04:39,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:39,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:39,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:04:39,385 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:04:39,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 09:04:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:39,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 2524 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 09:04:39,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:04:39,837 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-23 09:04:39,837 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:04:39,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:04:39,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343306620] [2023-11-23 09:04:39,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:04:39,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343058739] [2023-11-23 09:04:39,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343058739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:04:39,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:04:39,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:04:39,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256395843] [2023-11-23 09:04:39,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:04:39,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:04:39,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:04:39,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:04:39,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:04:39,840 INFO L87 Difference]: Start difference. First operand 177 states and 237 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 09:04:40,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:04:40,025 INFO L93 Difference]: Finished difference Result 324 states and 435 transitions. [2023-11-23 09:04:40,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:04:40,026 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 131 [2023-11-23 09:04:40,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:04:40,028 INFO L225 Difference]: With dead ends: 324 [2023-11-23 09:04:40,028 INFO L226 Difference]: Without dead ends: 177 [2023-11-23 09:04:40,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:04:40,029 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 61 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:04:40,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 913 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:04:40,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-23 09:04:40,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2023-11-23 09:04:40,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 108 states have (on average 1.212962962962963) internal successors, (131), 110 states have internal predecessors, (131), 50 states have call successors, (50), 17 states have call predecessors, (50), 18 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2023-11-23 09:04:40,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 236 transitions. [2023-11-23 09:04:40,046 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 236 transitions. Word has length 131 [2023-11-23 09:04:40,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:04:40,047 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 236 transitions. [2023-11-23 09:04:40,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 09:04:40,048 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 236 transitions. [2023-11-23 09:04:40,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-23 09:04:40,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:04:40,050 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:04:40,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 09:04:40,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:40,265 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:04:40,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:04:40,266 INFO L85 PathProgramCache]: Analyzing trace with hash -640626674, now seen corresponding path program 1 times [2023-11-23 09:04:40,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:04:40,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205561063] [2023-11-23 09:04:40,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:40,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:04:40,325 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:04:40,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [17551679] [2023-11-23 09:04:40,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:40,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:40,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:04:40,341 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:04:40,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 09:04:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:40,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 2596 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 09:04:40,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:04:40,883 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-23 09:04:40,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:04:40,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:04:40,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205561063] [2023-11-23 09:04:40,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:04:40,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17551679] [2023-11-23 09:04:40,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17551679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:04:40,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:04:40,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:04:40,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170729272] [2023-11-23 09:04:40,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:04:40,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:04:40,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:04:40,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:04:40,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:04:40,886 INFO L87 Difference]: Start difference. First operand 177 states and 236 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-23 09:04:41,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:04:41,345 INFO L93 Difference]: Finished difference Result 337 states and 452 transitions. [2023-11-23 09:04:41,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:04:41,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 147 [2023-11-23 09:04:41,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:04:41,346 INFO L225 Difference]: With dead ends: 337 [2023-11-23 09:04:41,346 INFO L226 Difference]: Without dead ends: 177 [2023-11-23 09:04:41,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:04:41,348 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 112 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:04:41,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1198 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 09:04:41,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-23 09:04:41,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2023-11-23 09:04:41,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 108 states have (on average 1.212962962962963) internal successors, (131), 110 states have internal predecessors, (131), 50 states have call successors, (50), 17 states have call predecessors, (50), 18 states have return successors, (54), 49 states have call predecessors, (54), 49 states have call successors, (54) [2023-11-23 09:04:41,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 235 transitions. [2023-11-23 09:04:41,356 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 235 transitions. Word has length 147 [2023-11-23 09:04:41,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:04:41,357 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 235 transitions. [2023-11-23 09:04:41,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-23 09:04:41,357 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 235 transitions. [2023-11-23 09:04:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-23 09:04:41,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:04:41,358 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:04:41,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 09:04:41,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:41,574 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:04:41,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:04:41,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1433070582, now seen corresponding path program 2 times [2023-11-23 09:04:41,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:04:41,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338675859] [2023-11-23 09:04:41,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:41,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:04:41,648 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:04:41,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297432369] [2023-11-23 09:04:41,648 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 09:04:41,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:41,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:04:41,649 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:04:41,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 09:04:41,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 09:04:41,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:04:42,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 1806 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:04:42,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:04:42,046 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-11-23 09:04:42,046 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:04:42,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:04:42,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338675859] [2023-11-23 09:04:42,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:04:42,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297432369] [2023-11-23 09:04:42,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297432369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:04:42,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:04:42,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:04:42,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970260289] [2023-11-23 09:04:42,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:04:42,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:04:42,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:04:42,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:04:42,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:04:42,049 INFO L87 Difference]: Start difference. First operand 177 states and 235 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-23 09:04:42,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:04:42,239 INFO L93 Difference]: Finished difference Result 185 states and 243 transitions. [2023-11-23 09:04:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:04:42,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 160 [2023-11-23 09:04:42,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:04:42,240 INFO L225 Difference]: With dead ends: 185 [2023-11-23 09:04:42,241 INFO L226 Difference]: Without dead ends: 183 [2023-11-23 09:04:42,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:04:42,241 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 5 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:04:42,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1044 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:04:42,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-23 09:04:42,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 182. [2023-11-23 09:04:42,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 113 states have internal predecessors, (134), 51 states have call successors, (51), 18 states have call predecessors, (51), 19 states have return successors, (55), 50 states have call predecessors, (55), 50 states have call successors, (55) [2023-11-23 09:04:42,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 240 transitions. [2023-11-23 09:04:42,255 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 240 transitions. Word has length 160 [2023-11-23 09:04:42,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:04:42,256 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 240 transitions. [2023-11-23 09:04:42,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-23 09:04:42,257 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 240 transitions. [2023-11-23 09:04:42,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-23 09:04:42,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:04:42,259 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:04:42,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 09:04:42,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:42,473 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:04:42,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:04:42,473 INFO L85 PathProgramCache]: Analyzing trace with hash 506437420, now seen corresponding path program 3 times [2023-11-23 09:04:42,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:04:42,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442496802] [2023-11-23 09:04:42,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:42,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:04:42,534 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:04:42,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [386392051] [2023-11-23 09:04:42,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 09:04:42,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:42,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:04:42,561 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:04:42,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 09:04:43,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 09:04:43,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:04:43,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 2016 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 09:04:43,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:04:43,241 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-23 09:04:43,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:04:43,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:04:43,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442496802] [2023-11-23 09:04:43,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:04:43,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386392051] [2023-11-23 09:04:43,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386392051] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:04:43,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:04:43,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:04:43,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391955729] [2023-11-23 09:04:43,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:04:43,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:04:43,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:04:43,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:04:43,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:04:43,244 INFO L87 Difference]: Start difference. First operand 182 states and 240 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-23 09:04:43,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:04:43,544 INFO L93 Difference]: Finished difference Result 313 states and 416 transitions. [2023-11-23 09:04:43,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:04:43,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 173 [2023-11-23 09:04:43,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:04:43,546 INFO L225 Difference]: With dead ends: 313 [2023-11-23 09:04:43,546 INFO L226 Difference]: Without dead ends: 182 [2023-11-23 09:04:43,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:04:43,547 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 2 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:04:43,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 995 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 09:04:43,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-23 09:04:43,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2023-11-23 09:04:43,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 113 states have internal predecessors, (134), 51 states have call successors, (51), 18 states have call predecessors, (51), 19 states have return successors, (54), 50 states have call predecessors, (54), 50 states have call successors, (54) [2023-11-23 09:04:43,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 239 transitions. [2023-11-23 09:04:43,571 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 239 transitions. Word has length 173 [2023-11-23 09:04:43,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:04:43,571 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 239 transitions. [2023-11-23 09:04:43,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-23 09:04:43,572 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 239 transitions. [2023-11-23 09:04:43,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-23 09:04:43,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:04:43,574 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:04:43,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-23 09:04:43,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:43,784 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:04:43,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:04:43,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1731919302, now seen corresponding path program 1 times [2023-11-23 09:04:43,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:04:43,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623703701] [2023-11-23 09:04:43,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:43,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:04:43,861 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:04:43,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599254525] [2023-11-23 09:04:43,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:43,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:43,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:04:43,862 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:04:43,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 09:04:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:44,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-23 09:04:44,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:04:44,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-23 09:04:44,555 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-11-23 09:04:44,555 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:04:44,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:04:44,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623703701] [2023-11-23 09:04:44,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:04:44,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599254525] [2023-11-23 09:04:44,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599254525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:04:44,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:04:44,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 09:04:44,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071064217] [2023-11-23 09:04:44,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:04:44,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 09:04:44,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:04:44,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 09:04:44,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:04:44,558 INFO L87 Difference]: Start difference. First operand 182 states and 239 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-23 09:04:45,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:04:45,168 INFO L93 Difference]: Finished difference Result 354 states and 474 transitions. [2023-11-23 09:04:45,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 09:04:45,169 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 186 [2023-11-23 09:04:45,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:04:45,170 INFO L225 Difference]: With dead ends: 354 [2023-11-23 09:04:45,170 INFO L226 Difference]: Without dead ends: 205 [2023-11-23 09:04:45,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2023-11-23 09:04:45,171 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 118 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:04:45,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1411 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:04:45,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-23 09:04:45,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 191. [2023-11-23 09:04:45,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 119 states have (on average 1.2100840336134453) internal successors, (144), 121 states have internal predecessors, (144), 51 states have call successors, (51), 18 states have call predecessors, (51), 20 states have return successors, (61), 51 states have call predecessors, (61), 50 states have call successors, (61) [2023-11-23 09:04:45,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 256 transitions. [2023-11-23 09:04:45,182 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 256 transitions. Word has length 186 [2023-11-23 09:04:45,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:04:45,182 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 256 transitions. [2023-11-23 09:04:45,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-23 09:04:45,183 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 256 transitions. [2023-11-23 09:04:45,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-23 09:04:45,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:04:45,184 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:04:45,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 09:04:45,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:45,425 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:04:45,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:04:45,425 INFO L85 PathProgramCache]: Analyzing trace with hash 112944388, now seen corresponding path program 1 times [2023-11-23 09:04:45,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:04:45,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564566025] [2023-11-23 09:04:45,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:45,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:04:45,489 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:04:45,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2052906936] [2023-11-23 09:04:45,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:45,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:45,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:04:45,509 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:04:45,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 09:04:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:46,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 3008 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 09:04:46,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:04:46,259 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-23 09:04:46,259 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:04:46,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:04:46,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564566025] [2023-11-23 09:04:46,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:04:46,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052906936] [2023-11-23 09:04:46,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052906936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:04:46,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:04:46,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 09:04:46,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786140834] [2023-11-23 09:04:46,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:04:46,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 09:04:46,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:04:46,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 09:04:46,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 09:04:46,261 INFO L87 Difference]: Start difference. First operand 191 states and 256 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 09:04:46,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:04:46,444 INFO L93 Difference]: Finished difference Result 359 states and 485 transitions. [2023-11-23 09:04:46,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:04:46,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 186 [2023-11-23 09:04:46,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:04:46,447 INFO L225 Difference]: With dead ends: 359 [2023-11-23 09:04:46,447 INFO L226 Difference]: Without dead ends: 201 [2023-11-23 09:04:46,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:04:46,449 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 7 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:04:46,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 832 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:04:46,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-23 09:04:46,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 197. [2023-11-23 09:04:46,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 125 states have (on average 1.216) internal successors, (152), 127 states have internal predecessors, (152), 51 states have call successors, (51), 18 states have call predecessors, (51), 20 states have return successors, (61), 51 states have call predecessors, (61), 50 states have call successors, (61) [2023-11-23 09:04:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 264 transitions. [2023-11-23 09:04:46,472 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 264 transitions. Word has length 186 [2023-11-23 09:04:46,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:04:46,473 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 264 transitions. [2023-11-23 09:04:46,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 09:04:46,473 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 264 transitions. [2023-11-23 09:04:46,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-23 09:04:46,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:04:46,475 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:04:46,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 09:04:46,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 09:04:46,695 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:04:46,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:04:46,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1435012626, now seen corresponding path program 1 times [2023-11-23 09:04:46,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:04:46,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427447791] [2023-11-23 09:04:46,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:46,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:04:46,754 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:04:46,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [394757185] [2023-11-23 09:04:46,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:46,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:46,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:04:46,770 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:04:46,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 09:04:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:47,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:04:47,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:04:47,432 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-23 09:04:47,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:04:47,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:04:47,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427447791] [2023-11-23 09:04:47,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:04:47,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394757185] [2023-11-23 09:04:47,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394757185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:04:47,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:04:47,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:04:47,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666734861] [2023-11-23 09:04:47,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:04:47,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:04:47,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:04:47,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:04:47,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:04:47,435 INFO L87 Difference]: Start difference. First operand 197 states and 264 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 09:04:47,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:04:47,928 INFO L93 Difference]: Finished difference Result 371 states and 499 transitions. [2023-11-23 09:04:47,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:04:47,929 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 188 [2023-11-23 09:04:47,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:04:47,930 INFO L225 Difference]: With dead ends: 371 [2023-11-23 09:04:47,930 INFO L226 Difference]: Without dead ends: 207 [2023-11-23 09:04:47,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:04:47,931 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 17 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:04:47,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 984 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:04:47,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-11-23 09:04:47,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 197. [2023-11-23 09:04:47,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 125 states have (on average 1.208) internal successors, (151), 127 states have internal predecessors, (151), 51 states have call successors, (51), 18 states have call predecessors, (51), 20 states have return successors, (61), 51 states have call predecessors, (61), 50 states have call successors, (61) [2023-11-23 09:04:47,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 263 transitions. [2023-11-23 09:04:47,941 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 263 transitions. Word has length 188 [2023-11-23 09:04:47,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:04:47,941 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 263 transitions. [2023-11-23 09:04:47,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 09:04:47,941 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 263 transitions. [2023-11-23 09:04:47,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-23 09:04:47,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:04:47,943 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:04:47,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-23 09:04:48,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:48,161 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:04:48,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:04:48,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1463512916, now seen corresponding path program 1 times [2023-11-23 09:04:48,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:04:48,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928208952] [2023-11-23 09:04:48,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:48,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:04:48,256 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:04:48,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706841202] [2023-11-23 09:04:48,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:48,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:48,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:04:48,272 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:04:48,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 09:04:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:48,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 3010 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 09:04:48,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:04:48,899 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-23 09:04:48,899 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:04:48,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:04:48,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928208952] [2023-11-23 09:04:48,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:04:48,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706841202] [2023-11-23 09:04:48,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706841202] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:04:48,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:04:48,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:04:48,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322199214] [2023-11-23 09:04:48,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:04:48,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:04:48,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:04:48,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:04:48,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:04:48,914 INFO L87 Difference]: Start difference. First operand 197 states and 263 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 09:04:49,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:04:49,122 INFO L93 Difference]: Finished difference Result 365 states and 490 transitions. [2023-11-23 09:04:49,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:04:49,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 188 [2023-11-23 09:04:49,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:04:49,124 INFO L225 Difference]: With dead ends: 365 [2023-11-23 09:04:49,124 INFO L226 Difference]: Without dead ends: 201 [2023-11-23 09:04:49,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 09:04:49,125 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 2 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:04:49,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 629 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:04:49,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-23 09:04:49,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 199. [2023-11-23 09:04:49,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 127 states have (on average 1.1968503937007875) internal successors, (152), 129 states have internal predecessors, (152), 51 states have call successors, (51), 18 states have call predecessors, (51), 20 states have return successors, (61), 51 states have call predecessors, (61), 50 states have call successors, (61) [2023-11-23 09:04:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 264 transitions. [2023-11-23 09:04:49,134 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 264 transitions. Word has length 188 [2023-11-23 09:04:49,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:04:49,135 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 264 transitions. [2023-11-23 09:04:49,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 09:04:49,135 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 264 transitions. [2023-11-23 09:04:49,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-23 09:04:49,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:04:49,136 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:04:49,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 09:04:49,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 09:04:49,352 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:04:49,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:04:49,352 INFO L85 PathProgramCache]: Analyzing trace with hash 413550314, now seen corresponding path program 1 times [2023-11-23 09:04:49,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:04:49,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832427845] [2023-11-23 09:04:49,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:49,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:04:49,415 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:04:49,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476350890] [2023-11-23 09:04:49,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:49,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:49,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:04:49,445 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:04:49,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 09:04:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:50,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 3005 conjuncts, 62 conjunts are in the unsatisfiable core [2023-11-23 09:04:50,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:04:50,196 WARN L876 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (select |c_#memory_int| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|)))) is different from true [2023-11-23 09:04:50,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 09:04:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-23 09:04:56,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:04:56,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:04:56,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832427845] [2023-11-23 09:04:56,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:04:56,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476350890] [2023-11-23 09:04:56,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476350890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:04:56,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:04:56,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-23 09:04:56,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816308496] [2023-11-23 09:04:56,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:04:56,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 09:04:56,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:04:56,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 09:04:56,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=104, Unknown=6, NotChecked=20, Total=156 [2023-11-23 09:04:56,505 INFO L87 Difference]: Start difference. First operand 199 states and 264 transitions. Second operand has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 6 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-23 09:05:00,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:05:09,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:05:11,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:05:13,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:05:15,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:05:17,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:05:19,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:05:22,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 09:05:24,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:05:26,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:05:26,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:05:26,664 INFO L93 Difference]: Finished difference Result 479 states and 683 transitions. [2023-11-23 09:05:26,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-23 09:05:26,664 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 6 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) Word has length 188 [2023-11-23 09:05:26,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:05:26,666 INFO L225 Difference]: With dead ends: 479 [2023-11-23 09:05:26,667 INFO L226 Difference]: Without dead ends: 313 [2023-11-23 09:05:26,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=145, Invalid=551, Unknown=10, NotChecked=50, Total=756 [2023-11-23 09:05:26,668 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 222 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 1626 mSolverCounterSat, 66 mSolverCounterUnsat, 34 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1626 IncrementalHoareTripleChecker+Invalid, 34 IncrementalHoareTripleChecker+Unknown, 368 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2023-11-23 09:05:26,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 889 Invalid, 2094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1626 Invalid, 34 Unknown, 368 Unchecked, 23.7s Time] [2023-11-23 09:05:26,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-23 09:05:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 199. [2023-11-23 09:05:26,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 127 states have (on average 1.1968503937007875) internal successors, (152), 129 states have internal predecessors, (152), 51 states have call successors, (51), 18 states have call predecessors, (51), 20 states have return successors, (61), 51 states have call predecessors, (61), 50 states have call successors, (61) [2023-11-23 09:05:26,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 264 transitions. [2023-11-23 09:05:26,697 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 264 transitions. Word has length 188 [2023-11-23 09:05:26,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:05:26,697 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 264 transitions. [2023-11-23 09:05:26,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 6 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-23 09:05:26,698 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 264 transitions. [2023-11-23 09:05:26,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-23 09:05:26,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:05:26,699 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:05:26,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 09:05:26,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 09:05:26,913 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:05:26,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:05:26,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1453158360, now seen corresponding path program 1 times [2023-11-23 09:05:26,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:05:26,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515289660] [2023-11-23 09:05:26,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:05:26,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:05:26,994 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:05:26,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515328936] [2023-11-23 09:05:26,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:05:26,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:05:26,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:05:27,009 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:05:27,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 09:05:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:05:36,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 3010 conjuncts, 114 conjunts are in the unsatisfiable core [2023-11-23 09:05:36,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:05:36,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-23 09:05:36,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-23 09:05:38,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-23 09:06:00,779 INFO L349 Elim1Store]: treesize reduction 166, result has 0.6 percent of original size [2023-11-23 09:06:00,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 170 treesize of output 1 [2023-11-23 09:06:00,783 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 130 proven. 23 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-23 09:06:00,783 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 09:06:01,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:06:01,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515289660] [2023-11-23 09:06:01,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:06:01,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515328936] [2023-11-23 09:06:01,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515328936] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 09:06:01,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 09:06:01,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2023-11-23 09:06:01,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534608131] [2023-11-23 09:06:01,984 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 09:06:01,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-23 09:06:01,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:06:01,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-23 09:06:01,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=866, Unknown=5, NotChecked=0, Total=992 [2023-11-23 09:06:01,986 INFO L87 Difference]: Start difference. First operand 199 states and 264 transitions. Second operand has 31 states, 25 states have (on average 4.08) internal successors, (102), 27 states have internal predecessors, (102), 12 states have call successors, (29), 7 states have call predecessors, (29), 12 states have return successors, (27), 12 states have call predecessors, (27), 12 states have call successors, (27) [2023-11-23 09:06:04,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:06,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:09,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:11,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:20,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:22,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:25,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:27,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:29,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:31,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:33,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:35,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:50,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:52,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:54,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:57,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:06:59,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:01,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:03,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:05,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:08,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:14,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:16,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:21,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:30,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:32,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:34,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:36,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:39,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:41,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:43,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:46,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:52,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:54,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:07:56,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:00,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:02,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:04,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:06,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:21,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:23,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:25,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:27,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:30,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:32,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:37,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:43,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:46,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:48,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:50,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:57,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:08:59,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] Killed by 15