./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 14:46:59,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:46:59,943 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-11 14:46:59,946 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:46:59,947 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:46:59,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:46:59,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:46:59,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:46:59,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:46:59,978 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:46:59,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:46:59,978 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:46:59,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:46:59,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:46:59,980 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:46:59,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:46:59,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:46:59,981 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:46:59,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:46:59,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:46:59,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:46:59,985 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:46:59,986 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:46:59,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:46:59,986 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:46:59,986 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:46:59,987 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:46:59,987 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:46:59,987 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:46:59,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:46:59,988 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:46:59,988 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:46:59,988 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:46:59,988 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:46:59,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:46:59,989 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:46:59,989 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:46:59,993 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:46:59,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:46:59,994 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 [2024-10-11 14:47:00,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:47:00,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:47:00,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:47:00,277 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:47:00,277 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:47:00,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2024-10-11 14:47:01,806 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:47:02,284 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:47:02,284 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2024-10-11 14:47:02,322 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a6082bbd7/48f7e18b822f4597841a53e0db95f5b3/FLAGded131252 [2024-10-11 14:47:02,376 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a6082bbd7/48f7e18b822f4597841a53e0db95f5b3 [2024-10-11 14:47:02,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:47:02,380 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:47:02,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:47:02,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:47:02,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:47:02,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:47:02" (1/1) ... [2024-10-11 14:47:02,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52735baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:02, skipping insertion in model container [2024-10-11 14:47:02,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:47:02" (1/1) ... [2024-10-11 14:47:02,482 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:47:02,794 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4505,4518] [2024-10-11 14:47:02,803 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4565,4578] [2024-10-11 14:47:03,651 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:03,651 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:03,652 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:03,652 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:03,653 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:03,673 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:03,673 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:03,675 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:03,676 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:04,084 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:04,085 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:04,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:47:04,173 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:47:04,194 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4505,4518] [2024-10-11 14:47:04,194 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4565,4578] [2024-10-11 14:47:04,256 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:04,256 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:04,256 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:04,257 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:04,261 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:04,269 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:04,272 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:04,273 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:04,275 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:04,351 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:04,352 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:47:04,357 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2024-10-11 14:47:04,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:47:04,652 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:47:04,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:04 WrapperNode [2024-10-11 14:47:04,654 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:47:04,655 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:47:04,655 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:47:04,655 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:47:04,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:04" (1/1) ... [2024-10-11 14:47:04,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:04" (1/1) ... [2024-10-11 14:47:04,823 INFO L138 Inliner]: procedures = 678, calls = 1506, calls flagged for inlining = 52, calls inlined = 9, statements flattened = 737 [2024-10-11 14:47:04,824 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:47:04,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:47:04,824 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:47:04,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:47:04,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:04" (1/1) ... [2024-10-11 14:47:04,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:04" (1/1) ... [2024-10-11 14:47:04,852 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:04" (1/1) ... [2024-10-11 14:47:04,934 INFO L175 MemorySlicer]: Split 285 memory accesses to 5 slices as follows [2, 236, 7, 35, 5]. 83 percent of accesses are in the largest equivalence class. The 244 initializations are split as follows [2, 236, 1, 0, 5]. The 7 writes are split as follows [0, 0, 1, 6, 0]. [2024-10-11 14:47:04,934 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:04" (1/1) ... [2024-10-11 14:47:04,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:04" (1/1) ... [2024-10-11 14:47:04,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:04" (1/1) ... [2024-10-11 14:47:04,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:04" (1/1) ... [2024-10-11 14:47:05,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:04" (1/1) ... [2024-10-11 14:47:05,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:04" (1/1) ... [2024-10-11 14:47:05,018 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:47:05,019 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:47:05,020 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:47:05,020 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:47:05,021 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:04" (1/1) ... [2024-10-11 14:47:05,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:47:05,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:47:05,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 14:47:05,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 14:47:05,109 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-10-11 14:47:05,110 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-10-11 14:47:05,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 14:47:05,110 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-11 14:47:05,111 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-11 14:47:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-11 14:47:05,111 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-11 14:47:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-10-11 14:47:05,111 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-10-11 14:47:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 14:47:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 14:47:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 14:47:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 14:47:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 14:47:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-11 14:47:05,114 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-11 14:47:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 14:47:05,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 14:47:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 14:47:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:47:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 14:47:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 14:47:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 14:47:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-11 14:47:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-11 14:47:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:47:05,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:47:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-11 14:47:05,115 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-11 14:47:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-10-11 14:47:05,115 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-10-11 14:47:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-11 14:47:05,115 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-11 14:47:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-10-11 14:47:05,115 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-10-11 14:47:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-10-11 14:47:05,116 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-10-11 14:47:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 14:47:05,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 14:47:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 14:47:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 14:47:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 14:47:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-11 14:47:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-11 14:47:05,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-11 14:47:05,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-11 14:47:05,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-11 14:47:05,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-11 14:47:05,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-11 14:47:05,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-11 14:47:05,187 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-11 14:47:05,187 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-11 14:47:05,187 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-11 14:47:05,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-11 14:47:05,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 14:47:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 14:47:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 14:47:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 14:47:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 14:47:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-10-11 14:47:05,188 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-10-11 14:47:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-10-11 14:47:05,189 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-10-11 14:47:05,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:47:05,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 14:47:05,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 14:47:05,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 14:47:05,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 14:47:05,520 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:47:05,522 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:47:06,300 INFO L? ?]: Removed 144 outVars from TransFormulas that were not future-live. [2024-10-11 14:47:06,300 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:47:06,404 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:47:06,405 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-11 14:47:06,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:47:06 BoogieIcfgContainer [2024-10-11 14:47:06,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:47:06,408 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:47:06,408 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:47:06,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:47:06,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:47:02" (1/3) ... [2024-10-11 14:47:06,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f06779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:47:06, skipping insertion in model container [2024-10-11 14:47:06,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:47:04" (2/3) ... [2024-10-11 14:47:06,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f06779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:47:06, skipping insertion in model container [2024-10-11 14:47:06,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:47:06" (3/3) ... [2024-10-11 14:47:06,415 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness-1.i [2024-10-11 14:47:06,433 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:47:06,434 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 14:47:06,506 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:47:06,514 INFO L333 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, 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;@744ea344, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:47:06,515 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 14:47:06,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 114 states have (on average 1.2982456140350878) internal successors, (148), 114 states have internal predecessors, (148), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-11 14:47:06,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-11 14:47:06,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:47:06,540 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-10-11 14:47:06,541 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:47:06,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:47:06,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1151027879, now seen corresponding path program 1 times [2024-10-11 14:47:06,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:47:06,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244815054] [2024-10-11 14:47:06,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:06,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:47:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:47:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:47:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:47:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 14:47:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 14:47:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 14:47:07,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 14:47:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 14:47:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:47:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 14:47:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 14:47:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 14:47:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 14:47:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 14:47:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 14:47:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:07,424 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-10-11 14:47:07,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:47:07,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244815054] [2024-10-11 14:47:07,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244815054] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:47:07,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:47:07,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:47:07,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781100632] [2024-10-11 14:47:07,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:47:07,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:47:07,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:47:07,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:47:07,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:47:07,457 INFO L87 Difference]: Start difference. First operand has 186 states, 114 states have (on average 1.2982456140350878) internal successors, (148), 114 states have internal predecessors, (148), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-11 14:47:08,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:47:08,123 INFO L93 Difference]: Finished difference Result 387 states and 584 transitions. [2024-10-11 14:47:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:47:08,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 103 [2024-10-11 14:47:08,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:47:08,141 INFO L225 Difference]: With dead ends: 387 [2024-10-11 14:47:08,142 INFO L226 Difference]: Without dead ends: 205 [2024-10-11 14:47:08,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:47:08,154 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 130 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 14:47:08,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 287 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 14:47:08,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-10-11 14:47:08,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 182. [2024-10-11 14:47:08,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 109 states have (on average 1.2568807339449541) internal successors, (137), 111 states have internal predecessors, (137), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-11 14:47:08,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2024-10-11 14:47:08,241 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 103 [2024-10-11 14:47:08,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:47:08,243 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2024-10-11 14:47:08,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-11 14:47:08,244 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2024-10-11 14:47:08,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-11 14:47:08,248 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:47:08,249 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 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] [2024-10-11 14:47:08,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:47:08,250 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:47:08,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:47:08,250 INFO L85 PathProgramCache]: Analyzing trace with hash -2118296214, now seen corresponding path program 1 times [2024-10-11 14:47:08,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:47:08,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441926654] [2024-10-11 14:47:08,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:08,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:47:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:47:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:47:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:47:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 14:47:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 14:47:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 14:47:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 14:47:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 14:47:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:47:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 14:47:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 14:47:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 14:47:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:08,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 14:47:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:09,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 14:47:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:09,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 14:47:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:09,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:09,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:09,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 14:47:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:09,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:09,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 14:47:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:09,139 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-10-11 14:47:09,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:47:09,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441926654] [2024-10-11 14:47:09,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441926654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:47:09,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:47:09,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 14:47:09,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615671415] [2024-10-11 14:47:09,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:47:09,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 14:47:09,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:47:09,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 14:47:09,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 14:47:09,146 INFO L87 Difference]: Start difference. First operand 182 states and 247 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-11 14:47:10,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:47:10,476 INFO L93 Difference]: Finished difference Result 308 states and 424 transitions. [2024-10-11 14:47:10,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 14:47:10,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 133 [2024-10-11 14:47:10,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:47:10,481 INFO L225 Difference]: With dead ends: 308 [2024-10-11 14:47:10,481 INFO L226 Difference]: Without dead ends: 215 [2024-10-11 14:47:10,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-10-11 14:47:10,484 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 179 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 14:47:10,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 544 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 14:47:10,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-10-11 14:47:10,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 186. [2024-10-11 14:47:10,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 112 states have (on average 1.25) internal successors, (140), 114 states have internal predecessors, (140), 56 states have call successors, (56), 16 states have call predecessors, (56), 17 states have return successors, (57), 55 states have call predecessors, (57), 54 states have call successors, (57) [2024-10-11 14:47:10,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 253 transitions. [2024-10-11 14:47:10,530 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 253 transitions. Word has length 133 [2024-10-11 14:47:10,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:47:10,534 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 253 transitions. [2024-10-11 14:47:10,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-11 14:47:10,534 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 253 transitions. [2024-10-11 14:47:10,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-11 14:47:10,537 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:47:10,537 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 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] [2024-10-11 14:47:10,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 14:47:10,537 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:47:10,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:47:10,538 INFO L85 PathProgramCache]: Analyzing trace with hash -950664499, now seen corresponding path program 1 times [2024-10-11 14:47:10,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:47:10,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395417505] [2024-10-11 14:47:10,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:10,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:47:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:47:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:47:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:47:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 14:47:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 14:47:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 14:47:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 14:47:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 14:47:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:47:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 14:47:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 14:47:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 14:47:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 14:47:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 14:47:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 14:47:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 14:47:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-11 14:47:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-10-11 14:47:11,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:47:11,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395417505] [2024-10-11 14:47:11,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395417505] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:47:11,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289456181] [2024-10-11 14:47:11,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:11,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:11,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:47:11,503 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:47:11,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 14:47:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:12,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 2336 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 14:47:12,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:47:12,203 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-10-11 14:47:12,204 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:47:12,443 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-10-11 14:47:12,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289456181] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 14:47:12,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 14:47:12,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 9] total 18 [2024-10-11 14:47:12,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576580528] [2024-10-11 14:47:12,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:47:12,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:47:12,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:47:12,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:47:12,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2024-10-11 14:47:12,446 INFO L87 Difference]: Start difference. First operand 186 states and 253 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-11 14:47:12,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:47:12,697 INFO L93 Difference]: Finished difference Result 194 states and 261 transitions. [2024-10-11 14:47:12,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:47:12,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 133 [2024-10-11 14:47:12,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:47:12,700 INFO L225 Difference]: With dead ends: 194 [2024-10-11 14:47:12,700 INFO L226 Difference]: Without dead ends: 192 [2024-10-11 14:47:12,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-10-11 14:47:12,702 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 3 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 14:47:12,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 901 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 14:47:12,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-10-11 14:47:12,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191. [2024-10-11 14:47:12,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 115 states have (on average 1.2434782608695651) internal successors, (143), 118 states have internal predecessors, (143), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 55 states have call predecessors, (58), 55 states have call successors, (58) [2024-10-11 14:47:12,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 258 transitions. [2024-10-11 14:47:12,721 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 258 transitions. Word has length 133 [2024-10-11 14:47:12,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:47:12,721 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 258 transitions. [2024-10-11 14:47:12,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-11 14:47:12,724 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 258 transitions. [2024-10-11 14:47:12,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-11 14:47:12,729 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:47:12,729 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 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] [2024-10-11 14:47:12,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 14:47:12,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:12,934 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:47:12,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:47:12,934 INFO L85 PathProgramCache]: Analyzing trace with hash -948817457, now seen corresponding path program 1 times [2024-10-11 14:47:12,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:47:12,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991144252] [2024-10-11 14:47:12,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:12,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:47:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:47:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:47:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:47:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 14:47:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 14:47:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 14:47:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 14:47:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 14:47:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:47:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 14:47:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 14:47:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 14:47:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 14:47:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 14:47:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 14:47:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 14:47:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-11 14:47:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:13,771 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-10-11 14:47:13,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:47:13,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991144252] [2024-10-11 14:47:13,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991144252] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:47:13,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835730927] [2024-10-11 14:47:13,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:13,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:13,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:47:13,774 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:47:13,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 14:47:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:14,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 2341 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 14:47:14,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:47:14,364 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-10-11 14:47:14,365 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:47:14,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835730927] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:47:14,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:47:14,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2024-10-11 14:47:14,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202531475] [2024-10-11 14:47:14,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:47:14,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:47:14,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:47:14,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:47:14,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-11 14:47:14,367 INFO L87 Difference]: Start difference. First operand 191 states and 258 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-10-11 14:47:14,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:47:14,669 INFO L93 Difference]: Finished difference Result 366 states and 488 transitions. [2024-10-11 14:47:14,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 14:47:14,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 133 [2024-10-11 14:47:14,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:47:14,672 INFO L225 Difference]: With dead ends: 366 [2024-10-11 14:47:14,672 INFO L226 Difference]: Without dead ends: 191 [2024-10-11 14:47:14,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-11 14:47:14,674 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 4 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 14:47:14,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1113 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 14:47:14,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-11 14:47:14,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-10-11 14:47:14,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 115 states have (on average 1.2347826086956522) internal successors, (142), 118 states have internal predecessors, (142), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 55 states have call predecessors, (58), 55 states have call successors, (58) [2024-10-11 14:47:14,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 257 transitions. [2024-10-11 14:47:14,692 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 257 transitions. Word has length 133 [2024-10-11 14:47:14,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:47:14,693 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 257 transitions. [2024-10-11 14:47:14,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-10-11 14:47:14,693 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 257 transitions. [2024-10-11 14:47:14,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-11 14:47:14,695 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:47:14,695 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 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] [2024-10-11 14:47:14,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 14:47:14,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:14,896 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:47:14,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:47:14,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1339026719, now seen corresponding path program 1 times [2024-10-11 14:47:14,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:47:14,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182731903] [2024-10-11 14:47:14,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:14,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:47:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:47:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:47:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:47:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 14:47:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 14:47:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 14:47:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 14:47:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 14:47:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:47:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 14:47:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 14:47:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 14:47:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 14:47:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 14:47:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 14:47:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 14:47:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 14:47:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:15,818 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-10-11 14:47:15,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:47:15,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182731903] [2024-10-11 14:47:15,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182731903] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:47:15,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585358403] [2024-10-11 14:47:15,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:15,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:15,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:47:15,821 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:47:15,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 14:47:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:16,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 2357 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 14:47:16,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:47:16,374 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-10-11 14:47:16,376 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:47:16,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585358403] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:47:16,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:47:16,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-10-11 14:47:16,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580625625] [2024-10-11 14:47:16,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:47:16,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 14:47:16,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:47:16,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 14:47:16,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-11 14:47:16,381 INFO L87 Difference]: Start difference. First operand 191 states and 257 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-10-11 14:47:16,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:47:16,565 INFO L93 Difference]: Finished difference Result 363 states and 486 transitions. [2024-10-11 14:47:16,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 14:47:16,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 137 [2024-10-11 14:47:16,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:47:16,568 INFO L225 Difference]: With dead ends: 363 [2024-10-11 14:47:16,568 INFO L226 Difference]: Without dead ends: 192 [2024-10-11 14:47:16,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-11 14:47:16,570 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 14:47:16,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 456 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 14:47:16,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-10-11 14:47:16,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2024-10-11 14:47:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 116 states have (on average 1.2327586206896552) internal successors, (143), 119 states have internal predecessors, (143), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 55 states have call predecessors, (58), 55 states have call successors, (58) [2024-10-11 14:47:16,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 258 transitions. [2024-10-11 14:47:16,592 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 258 transitions. Word has length 137 [2024-10-11 14:47:16,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:47:16,592 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 258 transitions. [2024-10-11 14:47:16,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-10-11 14:47:16,593 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 258 transitions. [2024-10-11 14:47:16,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-11 14:47:16,595 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:47:16,595 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:47:16,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 14:47:16,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:16,797 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:47:16,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:47:16,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1336656897, now seen corresponding path program 1 times [2024-10-11 14:47:16,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:47:16,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385404804] [2024-10-11 14:47:16,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:16,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:47:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:47:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:47:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:47:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 14:47:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 14:47:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 14:47:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 14:47:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 14:47:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:47:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 14:47:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 14:47:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 14:47:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 14:47:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 14:47:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 14:47:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 14:47:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 14:47:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:17,905 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-10-11 14:47:17,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:47:17,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385404804] [2024-10-11 14:47:17,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385404804] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:47:17,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281954185] [2024-10-11 14:47:17,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:17,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:17,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:47:17,908 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:47:17,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 14:47:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:18,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 2395 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 14:47:18,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:47:18,587 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 153 proven. 1 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-10-11 14:47:18,588 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:47:18,881 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-10-11 14:47:18,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281954185] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:47:18,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:47:18,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 19 [2024-10-11 14:47:18,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499175761] [2024-10-11 14:47:18,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:47:18,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 14:47:18,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:47:18,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 14:47:18,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-10-11 14:47:18,886 INFO L87 Difference]: Start difference. First operand 192 states and 258 transitions. Second operand has 19 states, 17 states have (on average 4.882352941176471) internal successors, (83), 16 states have internal predecessors, (83), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2024-10-11 14:47:21,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:47:21,065 INFO L93 Difference]: Finished difference Result 393 states and 526 transitions. [2024-10-11 14:47:21,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 14:47:21,066 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 4.882352941176471) internal successors, (83), 16 states have internal predecessors, (83), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) Word has length 139 [2024-10-11 14:47:21,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:47:21,068 INFO L225 Difference]: With dead ends: 393 [2024-10-11 14:47:21,069 INFO L226 Difference]: Without dead ends: 216 [2024-10-11 14:47:21,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2024-10-11 14:47:21,072 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 176 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 14:47:21,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1127 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 14:47:21,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-10-11 14:47:21,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 193. [2024-10-11 14:47:21,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 117 states have (on average 1.2307692307692308) internal successors, (144), 120 states have internal predecessors, (144), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 55 states have call predecessors, (58), 55 states have call successors, (58) [2024-10-11 14:47:21,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 259 transitions. [2024-10-11 14:47:21,098 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 259 transitions. Word has length 139 [2024-10-11 14:47:21,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:47:21,099 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 259 transitions. [2024-10-11 14:47:21,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 4.882352941176471) internal successors, (83), 16 states have internal predecessors, (83), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2024-10-11 14:47:21,100 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 259 transitions. [2024-10-11 14:47:21,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-11 14:47:21,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:47:21,101 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 3, 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] [2024-10-11 14:47:21,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 14:47:21,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-11 14:47:21,302 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:47:21,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:47:21,303 INFO L85 PathProgramCache]: Analyzing trace with hash -2021376545, now seen corresponding path program 2 times [2024-10-11 14:47:21,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:47:21,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747708478] [2024-10-11 14:47:21,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:21,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:47:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:21,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:21,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:47:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:21,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:47:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:21,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:47:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:21,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 14:47:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:21,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 14:47:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 14:47:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 14:47:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 14:47:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:47:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 14:47:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 14:47:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 14:47:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 14:47:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 14:47:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 14:47:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 14:47:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 14:47:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:22,508 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2024-10-11 14:47:22,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:47:22,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747708478] [2024-10-11 14:47:22,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747708478] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:47:22,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892005878] [2024-10-11 14:47:22,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 14:47:22,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:22,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:47:22,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:47:22,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 14:47:23,093 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 14:47:23,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:47:23,104 INFO L255 TraceCheckSpWp]: Trace formula consists of 2433 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 14:47:23,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:47:23,229 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 158 proven. 3 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-10-11 14:47:23,230 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:47:23,599 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2024-10-11 14:47:23,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892005878] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:47:23,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:47:23,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 21 [2024-10-11 14:47:23,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140110589] [2024-10-11 14:47:23,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:47:23,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-11 14:47:23,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:47:23,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-11 14:47:23,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2024-10-11 14:47:23,603 INFO L87 Difference]: Start difference. First operand 193 states and 259 transitions. Second operand has 21 states, 19 states have (on average 4.473684210526316) internal successors, (85), 18 states have internal predecessors, (85), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2024-10-11 14:47:25,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:47:25,845 INFO L93 Difference]: Finished difference Result 395 states and 528 transitions. [2024-10-11 14:47:25,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 14:47:25,848 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 4.473684210526316) internal successors, (85), 18 states have internal predecessors, (85), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) Word has length 141 [2024-10-11 14:47:25,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:47:25,850 INFO L225 Difference]: With dead ends: 395 [2024-10-11 14:47:25,850 INFO L226 Difference]: Without dead ends: 217 [2024-10-11 14:47:25,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=160, Invalid=832, Unknown=0, NotChecked=0, Total=992 [2024-10-11 14:47:25,854 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 249 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 14:47:25,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 989 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 1511 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 14:47:25,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-11 14:47:25,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 194. [2024-10-11 14:47:25,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 118 states have (on average 1.228813559322034) internal successors, (145), 121 states have internal predecessors, (145), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 55 states have call predecessors, (58), 55 states have call successors, (58) [2024-10-11 14:47:25,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 260 transitions. [2024-10-11 14:47:25,873 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 260 transitions. Word has length 141 [2024-10-11 14:47:25,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:47:25,875 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 260 transitions. [2024-10-11 14:47:25,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 4.473684210526316) internal successors, (85), 18 states have internal predecessors, (85), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2024-10-11 14:47:25,875 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 260 transitions. [2024-10-11 14:47:25,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-11 14:47:25,876 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:47:25,877 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 3, 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] [2024-10-11 14:47:25,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 14:47:26,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:26,078 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:47:26,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:47:26,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1665876801, now seen corresponding path program 3 times [2024-10-11 14:47:26,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:47:26,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587520246] [2024-10-11 14:47:26,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:26,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:47:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:26,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:26,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:47:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:26,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:47:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:26,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:47:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:26,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 14:47:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:26,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 14:47:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:26,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:26,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 14:47:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:26,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 14:47:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:26,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:26,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 14:47:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:26,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:47:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:26,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 14:47:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:26,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 14:47:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:27,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:27,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:27,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 14:47:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:27,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 14:47:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:27,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 14:47:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:27,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 14:47:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:27,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:27,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:27,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:27,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 14:47:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:27,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:27,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-11 14:47:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:27,373 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2024-10-11 14:47:27,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:47:27,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587520246] [2024-10-11 14:47:27,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587520246] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:47:27,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671268948] [2024-10-11 14:47:27,374 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 14:47:27,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:27,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:47:27,376 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:47:27,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 14:47:30,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-10-11 14:47:30,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:47:30,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 2061 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-11 14:47:30,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:47:30,229 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 35 proven. 6 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-10-11 14:47:30,229 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:47:30,687 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2024-10-11 14:47:30,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671268948] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:47:30,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:47:30,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 25 [2024-10-11 14:47:30,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990060204] [2024-10-11 14:47:30,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:47:30,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-11 14:47:30,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:47:30,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-11 14:47:30,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2024-10-11 14:47:30,690 INFO L87 Difference]: Start difference. First operand 194 states and 260 transitions. Second operand has 25 states, 23 states have (on average 3.5217391304347827) internal successors, (81), 22 states have internal predecessors, (81), 6 states have call successors, (41), 5 states have call predecessors, (41), 6 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2024-10-11 14:47:32,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:47:32,913 INFO L93 Difference]: Finished difference Result 397 states and 530 transitions. [2024-10-11 14:47:32,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 14:47:32,913 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 3.5217391304347827) internal successors, (81), 22 states have internal predecessors, (81), 6 states have call successors, (41), 5 states have call predecessors, (41), 6 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) Word has length 143 [2024-10-11 14:47:32,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:47:32,916 INFO L225 Difference]: With dead ends: 397 [2024-10-11 14:47:32,916 INFO L226 Difference]: Without dead ends: 218 [2024-10-11 14:47:32,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=199, Invalid=1133, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 14:47:32,918 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 252 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 14:47:32,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 1087 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1682 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 14:47:32,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-10-11 14:47:32,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 195. [2024-10-11 14:47:32,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 119 states have (on average 1.226890756302521) internal successors, (146), 122 states have internal predecessors, (146), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 55 states have call predecessors, (58), 55 states have call successors, (58) [2024-10-11 14:47:32,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 261 transitions. [2024-10-11 14:47:32,934 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 261 transitions. Word has length 143 [2024-10-11 14:47:32,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:47:32,935 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 261 transitions. [2024-10-11 14:47:32,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 3.5217391304347827) internal successors, (81), 22 states have internal predecessors, (81), 6 states have call successors, (41), 5 states have call predecessors, (41), 6 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2024-10-11 14:47:32,935 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 261 transitions. [2024-10-11 14:47:32,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-11 14:47:32,936 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:47:32,937 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 8, 3, 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] [2024-10-11 14:47:32,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-11 14:47:33,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-11 14:47:33,138 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:47:33,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:47:33,138 INFO L85 PathProgramCache]: Analyzing trace with hash 485895839, now seen corresponding path program 4 times [2024-10-11 14:47:33,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:47:33,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743171532] [2024-10-11 14:47:33,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:33,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:47:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:33,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:33,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:47:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:33,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:47:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:33,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:47:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:33,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 14:47:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:33,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 14:47:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:33,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:33,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 14:47:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 14:47:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 14:47:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:47:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 14:47:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 14:47:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 14:47:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 14:47:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-11 14:47:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 14:47:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 14:47:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 14:47:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:34,551 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-10-11 14:47:34,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:47:34,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743171532] [2024-10-11 14:47:34,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743171532] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:47:34,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261753493] [2024-10-11 14:47:34,552 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 14:47:34,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:34,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:47:34,554 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:47:34,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 14:47:35,234 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 14:47:35,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:47:35,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 2509 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-11 14:47:35,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:47:35,428 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 174 proven. 10 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-11 14:47:35,429 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:47:35,865 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-10-11 14:47:35,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261753493] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:47:35,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:47:35,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 28 [2024-10-11 14:47:35,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102846511] [2024-10-11 14:47:35,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:47:35,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-11 14:47:35,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:47:35,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-11 14:47:35,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2024-10-11 14:47:35,867 INFO L87 Difference]: Start difference. First operand 195 states and 261 transitions. Second operand has 28 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 25 states have internal predecessors, (92), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2024-10-11 14:47:38,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:47:38,449 INFO L93 Difference]: Finished difference Result 399 states and 532 transitions. [2024-10-11 14:47:38,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 14:47:38,450 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 25 states have internal predecessors, (92), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) Word has length 145 [2024-10-11 14:47:38,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:47:38,452 INFO L225 Difference]: With dead ends: 399 [2024-10-11 14:47:38,452 INFO L226 Difference]: Without dead ends: 219 [2024-10-11 14:47:38,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=231, Invalid=1409, Unknown=0, NotChecked=0, Total=1640 [2024-10-11 14:47:38,454 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 251 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 14:47:38,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 1369 Invalid, 2349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 14:47:38,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-10-11 14:47:38,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 196. [2024-10-11 14:47:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 120 states have (on average 1.225) internal successors, (147), 123 states have internal predecessors, (147), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 55 states have call predecessors, (58), 55 states have call successors, (58) [2024-10-11 14:47:38,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 262 transitions. [2024-10-11 14:47:38,475 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 262 transitions. Word has length 145 [2024-10-11 14:47:38,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:47:38,476 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 262 transitions. [2024-10-11 14:47:38,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 25 states have internal predecessors, (92), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2024-10-11 14:47:38,476 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 262 transitions. [2024-10-11 14:47:38,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-11 14:47:38,478 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:47:38,478 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 3, 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] [2024-10-11 14:47:38,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-11 14:47:38,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:38,679 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:47:38,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:47:38,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1142087039, now seen corresponding path program 5 times [2024-10-11 14:47:38,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:47:38,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836063370] [2024-10-11 14:47:38,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:38,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:47:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:47:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:47:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:47:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 14:47:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 14:47:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 14:47:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 14:47:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 14:47:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:47:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 14:47:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 14:47:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 14:47:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 14:47:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 14:47:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 14:47:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 14:47:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 14:47:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:39,999 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-10-11 14:47:39,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:47:39,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836063370] [2024-10-11 14:47:39,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836063370] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:47:39,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052459743] [2024-10-11 14:47:39,999 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 14:47:40,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:40,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:47:40,002 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:47:40,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 14:47:40,763 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-10-11 14:47:40,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:47:40,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-11 14:47:40,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:47:41,009 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 185 proven. 15 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-10-11 14:47:41,009 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:47:41,464 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-10-11 14:47:41,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052459743] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:47:41,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:47:41,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 31 [2024-10-11 14:47:41,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624348184] [2024-10-11 14:47:41,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:47:41,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-11 14:47:41,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:47:41,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-11 14:47:41,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=808, Unknown=0, NotChecked=0, Total=930 [2024-10-11 14:47:41,467 INFO L87 Difference]: Start difference. First operand 196 states and 262 transitions. Second operand has 31 states, 29 states have (on average 3.2758620689655173) internal successors, (95), 28 states have internal predecessors, (95), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2024-10-11 14:47:44,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:47:44,001 INFO L93 Difference]: Finished difference Result 401 states and 534 transitions. [2024-10-11 14:47:44,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 14:47:44,001 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 29 states have (on average 3.2758620689655173) internal successors, (95), 28 states have internal predecessors, (95), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) Word has length 147 [2024-10-11 14:47:44,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:47:44,003 INFO L225 Difference]: With dead ends: 401 [2024-10-11 14:47:44,004 INFO L226 Difference]: Without dead ends: 220 [2024-10-11 14:47:44,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=265, Invalid=1715, Unknown=0, NotChecked=0, Total=1980 [2024-10-11 14:47:44,006 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 182 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 2156 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 2156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-11 14:47:44,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 1319 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 2156 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-11 14:47:44,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-10-11 14:47:44,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 197. [2024-10-11 14:47:44,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 121 states have (on average 1.2231404958677685) internal successors, (148), 124 states have internal predecessors, (148), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 55 states have call predecessors, (58), 55 states have call successors, (58) [2024-10-11 14:47:44,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 263 transitions. [2024-10-11 14:47:44,020 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 263 transitions. Word has length 147 [2024-10-11 14:47:44,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:47:44,021 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 263 transitions. [2024-10-11 14:47:44,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 29 states have (on average 3.2758620689655173) internal successors, (95), 28 states have internal predecessors, (95), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2024-10-11 14:47:44,021 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 263 transitions. [2024-10-11 14:47:44,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-11 14:47:44,022 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:47:44,023 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 3, 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] [2024-10-11 14:47:44,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 14:47:44,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 14:47:44,224 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:47:44,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:47:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1823096993, now seen corresponding path program 6 times [2024-10-11 14:47:44,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:47:44,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46885078] [2024-10-11 14:47:44,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:44,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:47:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:47:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:47:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:47:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 14:47:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 14:47:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 14:47:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 14:47:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 14:47:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:47:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 14:47:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 14:47:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 14:47:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 14:47:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 14:47:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 14:47:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 14:47:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-11 14:47:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:45,668 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-10-11 14:47:45,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:47:45,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46885078] [2024-10-11 14:47:45,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46885078] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:47:45,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580971172] [2024-10-11 14:47:45,669 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 14:47:45,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:45,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:47:45,671 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:47:45,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 14:47:48,389 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-10-11 14:47:48,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:47:48,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 2361 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-11 14:47:48,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:47:48,627 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 68 proven. 21 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-10-11 14:47:48,628 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:47:49,105 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 57 proven. 21 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-10-11 14:47:49,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580971172] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:47:49,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:47:49,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 34 [2024-10-11 14:47:49,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735609317] [2024-10-11 14:47:49,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:47:49,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-11 14:47:49,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:47:49,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-11 14:47:49,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=981, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 14:47:49,108 INFO L87 Difference]: Start difference. First operand 197 states and 263 transitions. Second operand has 34 states, 32 states have (on average 2.8125) internal successors, (90), 31 states have internal predecessors, (90), 6 states have call successors, (41), 5 states have call predecessors, (41), 6 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2024-10-11 14:47:53,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:47:53,362 INFO L93 Difference]: Finished difference Result 403 states and 536 transitions. [2024-10-11 14:47:53,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 14:47:53,362 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 2.8125) internal successors, (90), 31 states have internal predecessors, (90), 6 states have call successors, (41), 5 states have call predecessors, (41), 6 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) Word has length 149 [2024-10-11 14:47:53,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:47:53,365 INFO L225 Difference]: With dead ends: 403 [2024-10-11 14:47:53,365 INFO L226 Difference]: Without dead ends: 221 [2024-10-11 14:47:53,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=301, Invalid=2051, Unknown=0, NotChecked=0, Total=2352 [2024-10-11 14:47:53,368 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 256 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 3447 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 2137 SdHoareTripleChecker+Invalid, 3641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 3447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-10-11 14:47:53,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 2137 Invalid, 3641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 3447 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-10-11 14:47:53,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-10-11 14:47:53,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 198. [2024-10-11 14:47:53,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 122 states have (on average 1.221311475409836) internal successors, (149), 125 states have internal predecessors, (149), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 55 states have call predecessors, (58), 55 states have call successors, (58) [2024-10-11 14:47:53,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 264 transitions. [2024-10-11 14:47:53,383 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 264 transitions. Word has length 149 [2024-10-11 14:47:53,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:47:53,384 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 264 transitions. [2024-10-11 14:47:53,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 2.8125) internal successors, (90), 31 states have internal predecessors, (90), 6 states have call successors, (41), 5 states have call predecessors, (41), 6 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2024-10-11 14:47:53,384 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 264 transitions. [2024-10-11 14:47:53,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-11 14:47:53,386 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:47:53,386 INFO L215 NwaCegarLoop]: trace histogram [14, 12, 12, 12, 3, 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] [2024-10-11 14:47:53,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-11 14:47:53,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:53,587 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:47:53,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:47:53,587 INFO L85 PathProgramCache]: Analyzing trace with hash 866033215, now seen corresponding path program 7 times [2024-10-11 14:47:53,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:47:53,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615948794] [2024-10-11 14:47:53,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:47:53,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:47:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:47:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:47:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:47:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 14:47:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 14:47:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 14:47:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 14:47:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 14:47:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:47:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 14:47:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 14:47:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 14:47:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 14:47:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 14:47:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 14:47:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:54,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:55,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:55,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 14:47:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:55,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:47:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:55,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 14:47:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:55,045 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2024-10-11 14:47:55,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:47:55,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615948794] [2024-10-11 14:47:55,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615948794] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:47:55,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559232912] [2024-10-11 14:47:55,046 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 14:47:55,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:47:55,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:47:55,048 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:47:55,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 14:47:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:47:55,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 2623 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-10-11 14:47:55,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:47:56,234 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 213 proven. 28 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-10-11 14:47:56,234 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:47:56,768 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2024-10-11 14:47:56,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559232912] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:47:56,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:47:56,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 14] total 37 [2024-10-11 14:47:56,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275535425] [2024-10-11 14:47:56,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:47:56,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-10-11 14:47:56,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:47:56,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-10-11 14:47:56,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=1171, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 14:47:56,771 INFO L87 Difference]: Start difference. First operand 198 states and 264 transitions. Second operand has 37 states, 35 states have (on average 2.8857142857142857) internal successors, (101), 34 states have internal predecessors, (101), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2024-10-11 14:48:00,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:48:00,361 INFO L93 Difference]: Finished difference Result 405 states and 538 transitions. [2024-10-11 14:48:00,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 14:48:00,362 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 2.8857142857142857) internal successors, (101), 34 states have internal predecessors, (101), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) Word has length 151 [2024-10-11 14:48:00,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:48:00,364 INFO L225 Difference]: With dead ends: 405 [2024-10-11 14:48:00,364 INFO L226 Difference]: Without dead ends: 222 [2024-10-11 14:48:00,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=339, Invalid=2417, Unknown=0, NotChecked=0, Total=2756 [2024-10-11 14:48:00,366 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 183 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 3228 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 3360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 3228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-11 14:48:00,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 1991 Invalid, 3360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 3228 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-11 14:48:00,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-10-11 14:48:00,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 199. [2024-10-11 14:48:00,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 123 states have (on average 1.2195121951219512) internal successors, (150), 126 states have internal predecessors, (150), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 55 states have call predecessors, (58), 55 states have call successors, (58) [2024-10-11 14:48:00,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 265 transitions. [2024-10-11 14:48:00,385 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 265 transitions. Word has length 151 [2024-10-11 14:48:00,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:48:00,386 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 265 transitions. [2024-10-11 14:48:00,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 2.8857142857142857) internal successors, (101), 34 states have internal predecessors, (101), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2024-10-11 14:48:00,387 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 265 transitions. [2024-10-11 14:48:00,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-11 14:48:00,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:48:00,388 INFO L215 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 3, 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] [2024-10-11 14:48:00,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-11 14:48:00,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-11 14:48:00,590 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:48:00,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:48:00,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1781338081, now seen corresponding path program 8 times [2024-10-11 14:48:00,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:48:00,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226714880] [2024-10-11 14:48:00,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:48:00,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:48:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:48:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:48:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:48:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 14:48:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 14:48:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 14:48:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 14:48:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 14:48:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:48:01,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 14:48:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 14:48:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 14:48:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 14:48:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 14:48:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 14:48:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 14:48:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 14:48:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:01,971 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-10-11 14:48:01,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:48:01,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226714880] [2024-10-11 14:48:01,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226714880] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:48:01,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729698455] [2024-10-11 14:48:01,971 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 14:48:01,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:48:01,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:48:01,973 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:48:01,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 14:48:03,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 14:48:03,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:48:03,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 2661 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-10-11 14:48:03,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:48:03,393 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 230 proven. 36 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-10-11 14:48:03,393 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:48:04,002 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-10-11 14:48:04,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729698455] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:48:04,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:48:04,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 15] total 40 [2024-10-11 14:48:04,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039532834] [2024-10-11 14:48:04,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:48:04,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-10-11 14:48:04,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:48:04,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-10-11 14:48:04,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1378, Unknown=0, NotChecked=0, Total=1560 [2024-10-11 14:48:04,004 INFO L87 Difference]: Start difference. First operand 199 states and 265 transitions. Second operand has 40 states, 38 states have (on average 2.736842105263158) internal successors, (104), 37 states have internal predecessors, (104), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2024-10-11 14:48:06,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:48:06,928 INFO L93 Difference]: Finished difference Result 407 states and 540 transitions. [2024-10-11 14:48:06,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 14:48:06,929 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 38 states have (on average 2.736842105263158) internal successors, (104), 37 states have internal predecessors, (104), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) Word has length 153 [2024-10-11 14:48:06,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:48:06,931 INFO L225 Difference]: With dead ends: 407 [2024-10-11 14:48:06,932 INFO L226 Difference]: Without dead ends: 223 [2024-10-11 14:48:06,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=379, Invalid=2813, Unknown=0, NotChecked=0, Total=3192 [2024-10-11 14:48:06,937 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 261 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 2505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-11 14:48:06,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 1375 Invalid, 2505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-11 14:48:06,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-10-11 14:48:06,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 200. [2024-10-11 14:48:06,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 124 states have (on average 1.217741935483871) internal successors, (151), 127 states have internal predecessors, (151), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 55 states have call predecessors, (58), 55 states have call successors, (58) [2024-10-11 14:48:06,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 266 transitions. [2024-10-11 14:48:06,955 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 266 transitions. Word has length 153 [2024-10-11 14:48:06,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:48:06,955 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 266 transitions. [2024-10-11 14:48:06,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 38 states have (on average 2.736842105263158) internal successors, (104), 37 states have internal predecessors, (104), 6 states have call successors, (44), 5 states have call predecessors, (44), 6 states have return successors, (37), 6 states have call predecessors, (37), 6 states have call successors, (37) [2024-10-11 14:48:06,956 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 266 transitions. [2024-10-11 14:48:06,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-11 14:48:06,957 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:48:06,958 INFO L215 NwaCegarLoop]: trace histogram [18, 12, 12, 12, 3, 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] [2024-10-11 14:48:06,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-11 14:48:07,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 14:48:07,159 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:48:07,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:48:07,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1601700097, now seen corresponding path program 9 times [2024-10-11 14:48:07,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:48:07,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639511137] [2024-10-11 14:48:07,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:48:07,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:48:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:07,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:07,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:48:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:07,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:48:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:07,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 14:48:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:07,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 14:48:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:07,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 14:48:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:07,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:07,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 14:48:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:07,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 14:48:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:07,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:07,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 14:48:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:07,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 14:48:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:07,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 14:48:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:07,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 14:48:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:08,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:08,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:08,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 14:48:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:08,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-11 14:48:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:08,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 14:48:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:08,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 14:48:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:08,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:08,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:08,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 14:48:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:08,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:48:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:08,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-11 14:48:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:48:08,604 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-10-11 14:48:08,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:48:08,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639511137] [2024-10-11 14:48:08,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639511137] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:48:08,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819267404] [2024-10-11 14:48:08,604 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 14:48:08,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:48:08,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:48:08,606 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:48:08,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 14:48:15,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-10-11 14:48:15,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:48:15,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 2250 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-10-11 14:48:15,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:48:15,422 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 52 treesize of output 39 [2024-10-11 14:48:15,430 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 14 treesize of output 13 [2024-10-11 14:48:15,441 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 12 treesize of output 11 [2024-10-11 14:48:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 119 proven. 45 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2024-10-11 14:48:16,115 INFO L311 TraceCheckSpWp]: Computing backward predicates...