./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.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 02a1ef197fe295e0adddb84ae3aa2db56396688008aeca91e1ab4b161b42690c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 12:58:51,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 12:58:51,140 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 12:58:51,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 12:58:51,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 12:58:51,172 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 12:58:51,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 12:58:51,173 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 12:58:51,173 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 12:58:51,174 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 12:58:51,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 12:58:51,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 12:58:51,176 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 12:58:51,176 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 12:58:51,177 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 12:58:51,177 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 12:58:51,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 12:58:51,181 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 12:58:51,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 12:58:51,181 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 12:58:51,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 12:58:51,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 12:58:51,182 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 12:58:51,182 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 12:58:51,182 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 12:58:51,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 12:58:51,182 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 12:58:51,183 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 12:58:51,183 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 12:58:51,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:58:51,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 12:58:51,183 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 12:58:51,184 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 12:58:51,184 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 12:58:51,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 12:58:51,184 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 12:58:51,184 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 12:58:51,184 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 12:58:51,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 12:58:51,185 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02a1ef197fe295e0adddb84ae3aa2db56396688008aeca91e1ab4b161b42690c [2024-10-24 12:58:51,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 12:58:51,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 12:58:51,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 12:58:51,419 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 12:58:51,424 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 12:58:51,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2024-10-24 12:58:52,871 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 12:58:53,225 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 12:58:53,226 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2024-10-24 12:58:53,257 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8bb753b1/623e1beb335648069bb08b2546d7b785/FLAG453b737bd [2024-10-24 12:58:53,269 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8bb753b1/623e1beb335648069bb08b2546d7b785 [2024-10-24 12:58:53,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 12:58:53,273 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 12:58:53,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 12:58:53,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 12:58:53,279 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 12:58:53,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:58:53" (1/1) ... [2024-10-24 12:58:53,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2294c287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:58:53, skipping insertion in model container [2024-10-24 12:58:53,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:58:53" (1/1) ... [2024-10-24 12:58:53,410 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 12:58:53,754 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.i[4505,4518] [2024-10-24 12:58:53,767 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.i[4565,4578] [2024-10-24 12:58:54,305 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,306 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,306 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,307 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,307 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,317 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,317 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,319 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,319 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,614 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,618 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:58:54,701 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 12:58:54,713 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.i[4505,4518] [2024-10-24 12:58:54,715 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.i[4565,4578] [2024-10-24 12:58:54,770 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,771 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,771 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,771 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,772 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,777 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,780 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,781 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,782 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,864 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,864 WARN L1660 CHandler]: Possible shadowing of function index [2024-10-24 12:58:54,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2024-10-24 12:58:54,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:58:55,238 INFO L204 MainTranslator]: Completed translation [2024-10-24 12:58:55,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:58:55 WrapperNode [2024-10-24 12:58:55,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 12:58:55,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 12:58:55,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 12:58:55,241 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 12:58:55,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:58:55" (1/1) ... [2024-10-24 12:58:55,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:58:55" (1/1) ... [2024-10-24 12:58:55,360 INFO L138 Inliner]: procedures = 678, calls = 1518, calls flagged for inlining = 52, calls inlined = 9, statements flattened = 761 [2024-10-24 12:58:55,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 12:58:55,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 12:58:55,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 12:58:55,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 12:58:55,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:58:55" (1/1) ... [2024-10-24 12:58:55,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:58:55" (1/1) ... [2024-10-24 12:58:55,429 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:58:55" (1/1) ... [2024-10-24 12:58:55,508 INFO L175 MemorySlicer]: Split 297 memory accesses to 5 slices as follows [2, 236, 8, 46, 5]. 79 percent of accesses are in the largest equivalence class. The 256 initializations are split as follows [2, 236, 2, 11, 5]. The 7 writes are split as follows [0, 0, 1, 6, 0]. [2024-10-24 12:58:55,508 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:58:55" (1/1) ... [2024-10-24 12:58:55,509 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:58:55" (1/1) ... [2024-10-24 12:58:55,537 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:58:55" (1/1) ... [2024-10-24 12:58:55,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:58:55" (1/1) ... [2024-10-24 12:58:55,556 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:58:55" (1/1) ... [2024-10-24 12:58:55,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:58:55" (1/1) ... [2024-10-24 12:58:55,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 12:58:55,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 12:58:55,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 12:58:55,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 12:58:55,579 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:58:55" (1/1) ... [2024-10-24 12:58:55,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:58:55,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:58:55,611 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 12:58:55,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 12:58:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-10-24 12:58:55,655 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-10-24 12:58:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 12:58:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-24 12:58:55,658 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-24 12:58:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-24 12:58:55,659 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-24 12:58:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-10-24 12:58:55,659 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-10-24 12:58:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 12:58:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 12:58:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 12:58:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 12:58:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 12:58:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-24 12:58:55,660 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-24 12:58:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 12:58:55,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 12:58:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 12:58:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 12:58:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 12:58:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 12:58:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 12:58:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-24 12:58:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-24 12:58:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 12:58:55,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 12:58:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-24 12:58:55,662 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-24 12:58:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-10-24 12:58:55,662 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-10-24 12:58:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-24 12:58:55,662 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-24 12:58:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-10-24 12:58:55,663 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-10-24 12:58:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-10-24 12:58:55,663 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-10-24 12:58:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 12:58:55,663 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 12:58:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 12:58:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 12:58:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 12:58:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 12:58:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-24 12:58:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-24 12:58:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-24 12:58:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-24 12:58:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-24 12:58:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-24 12:58:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-24 12:58:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-24 12:58:55,666 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-24 12:58:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-24 12:58:55,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-24 12:58:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 12:58:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 12:58:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 12:58:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 12:58:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 12:58:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-10-24 12:58:55,667 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-10-24 12:58:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-10-24 12:58:55,667 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-10-24 12:58:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 12:58:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 12:58:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 12:58:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 12:58:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 12:58:55,934 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 12:58:55,937 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 12:58:56,539 INFO L? ?]: Removed 151 outVars from TransFormulas that were not future-live. [2024-10-24 12:58:56,539 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 12:58:56,649 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 12:58:56,651 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-24 12:58:56,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:58:56 BoogieIcfgContainer [2024-10-24 12:58:56,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 12:58:56,653 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 12:58:56,653 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 12:58:56,656 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 12:58:56,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:58:53" (1/3) ... [2024-10-24 12:58:56,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72efe51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:58:56, skipping insertion in model container [2024-10-24 12:58:56,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:58:55" (2/3) ... [2024-10-24 12:58:56,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72efe51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:58:56, skipping insertion in model container [2024-10-24 12:58:56,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:58:56" (3/3) ... [2024-10-24 12:58:56,658 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness.i [2024-10-24 12:58:56,671 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 12:58:56,672 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 12:58:56,722 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 12:58:56,727 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;@cbf5baa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 12:58:56,727 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 12:58:56,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 199 states, 121 states have (on average 1.28099173553719) internal successors, (155), 121 states have internal predecessors, (155), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-10-24 12:58:56,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 12:58:56,742 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:58:56,743 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:58:56,743 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:58:56,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:58:56,747 INFO L85 PathProgramCache]: Analyzing trace with hash -955814862, now seen corresponding path program 1 times [2024-10-24 12:58:56,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:58:56,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911327990] [2024-10-24 12:58:56,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:58:56,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:58:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:58:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:58:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 12:58:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 12:58:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 12:58:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 12:58:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:58:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 12:58:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:58:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:58:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 12:58:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 12:58:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:58:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:58:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:58:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:58:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:58:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:58:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 12:58:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:58:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 12:58:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 12:58:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:58:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 12:58:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:58:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:57,404 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-10-24 12:58:57,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:58:57,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911327990] [2024-10-24 12:58:57,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911327990] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:58:57,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:58:57,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 12:58:57,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325098581] [2024-10-24 12:58:57,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:58:57,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 12:58:57,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:58:57,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 12:58:57,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 12:58:57,428 INFO L87 Difference]: Start difference. First operand has 199 states, 121 states have (on average 1.28099173553719) internal successors, (155), 121 states have internal predecessors, (155), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-24 12:58:58,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:58:58,265 INFO L93 Difference]: Finished difference Result 397 states and 600 transitions. [2024-10-24 12:58:58,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 12:58:58,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 128 [2024-10-24 12:58:58,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:58:58,275 INFO L225 Difference]: With dead ends: 397 [2024-10-24 12:58:58,276 INFO L226 Difference]: Without dead ends: 218 [2024-10-24 12:58:58,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:58:58,281 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 138 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 12:58:58,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 381 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 12:58:58,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-10-24 12:58:58,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 195. [2024-10-24 12:58:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 116 states have (on average 1.2413793103448276) internal successors, (144), 118 states have internal predecessors, (144), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 12:58:58,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 266 transitions. [2024-10-24 12:58:58,334 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 266 transitions. Word has length 128 [2024-10-24 12:58:58,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:58:58,334 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 266 transitions. [2024-10-24 12:58:58,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-24 12:58:58,335 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 266 transitions. [2024-10-24 12:58:58,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 12:58:58,341 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:58:58,341 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:58:58,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 12:58:58,342 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:58:58,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:58:58,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1820788207, now seen corresponding path program 1 times [2024-10-24 12:58:58,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:58:58,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186133565] [2024-10-24 12:58:58,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:58:58,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:58:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:58:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:58:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 12:58:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 12:58:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 12:58:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 12:58:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:58:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 12:58:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:58:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:58:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 12:58:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 12:58:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:58:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:58:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:58:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:58:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:58:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:58:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 12:58:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:58:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:58:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:58,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:58:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:59,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:58:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:59,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 12:58:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:59,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 12:58:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:59,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:58:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:59,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 12:58:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:59,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:58:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:59,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:58:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:59,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-24 12:58:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:59,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:58:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-10-24 12:58:59,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:58:59,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186133565] [2024-10-24 12:58:59,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186133565] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:58:59,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256788612] [2024-10-24 12:58:59,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:58:59,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:58:59,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:58:59,172 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:58:59,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 12:58:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:58:59,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 2374 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 12:58:59,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:58:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2024-10-24 12:58:59,809 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:59:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-10-24 12:59:00,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256788612] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 12:59:00,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 12:59:00,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 9] total 18 [2024-10-24 12:59:00,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936437930] [2024-10-24 12:59:00,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:59:00,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:59:00,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:59:00,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:59:00,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2024-10-24 12:59:00,029 INFO L87 Difference]: Start difference. First operand 195 states and 266 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-24 12:59:00,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:59:00,366 INFO L93 Difference]: Finished difference Result 203 states and 274 transitions. [2024-10-24 12:59:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 12:59:00,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 158 [2024-10-24 12:59:00,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:59:00,369 INFO L225 Difference]: With dead ends: 203 [2024-10-24 12:59:00,369 INFO L226 Difference]: Without dead ends: 201 [2024-10-24 12:59:00,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2024-10-24 12:59:00,370 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 3 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:59:00,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 970 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 12:59:00,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-10-24 12:59:00,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 200. [2024-10-24 12:59:00,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 119 states have (on average 1.2352941176470589) internal successors, (147), 122 states have internal predecessors, (147), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-24 12:59:00,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 271 transitions. [2024-10-24 12:59:00,386 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 271 transitions. Word has length 158 [2024-10-24 12:59:00,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:59:00,387 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 271 transitions. [2024-10-24 12:59:00,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-24 12:59:00,387 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 271 transitions. [2024-10-24 12:59:00,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 12:59:00,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:59:00,389 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:59:00,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 12:59:00,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:00,590 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:59:00,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:59:00,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1818941165, now seen corresponding path program 1 times [2024-10-24 12:59:00,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:59:00,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817508556] [2024-10-24 12:59:00,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:59:00,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:59:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:00,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:00,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:59:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:00,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 12:59:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:00,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 12:59:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:00,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 12:59:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:00,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 12:59:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:00,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:59:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 12:59:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:59:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:59:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 12:59:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 12:59:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:59:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:59:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:59:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:59:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 12:59:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:59:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:59:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 12:59:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 12:59:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:59:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 12:59:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-24 12:59:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,309 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-10-24 12:59:01,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:59:01,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817508556] [2024-10-24 12:59:01,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817508556] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:59:01,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790901135] [2024-10-24 12:59:01,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:59:01,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:01,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:59:01,312 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:59:01,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 12:59:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:01,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 2379 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 12:59:01,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:59:01,744 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-10-24 12:59:01,744 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:59:01,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790901135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:59:01,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:59:01,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2024-10-24 12:59:01,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957084082] [2024-10-24 12:59:01,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:59:01,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 12:59:01,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:59:01,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 12:59:01,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-24 12:59:01,746 INFO L87 Difference]: Start difference. First operand 200 states and 271 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-10-24 12:59:02,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:59:02,026 INFO L93 Difference]: Finished difference Result 368 states and 493 transitions. [2024-10-24 12:59:02,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 12:59:02,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 158 [2024-10-24 12:59:02,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:59:02,031 INFO L225 Difference]: With dead ends: 368 [2024-10-24 12:59:02,034 INFO L226 Difference]: Without dead ends: 200 [2024-10-24 12:59:02,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-24 12:59:02,036 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 4 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 12:59:02,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1208 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 12:59:02,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-10-24 12:59:02,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2024-10-24 12:59:02,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 119 states have (on average 1.226890756302521) internal successors, (146), 122 states have internal predecessors, (146), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-24 12:59:02,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 270 transitions. [2024-10-24 12:59:02,057 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 270 transitions. Word has length 158 [2024-10-24 12:59:02,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:59:02,057 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 270 transitions. [2024-10-24 12:59:02,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-10-24 12:59:02,057 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 270 transitions. [2024-10-24 12:59:02,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-24 12:59:02,059 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:59:02,059 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:59:02,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 12:59:02,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-24 12:59:02,263 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:59:02,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:59:02,263 INFO L85 PathProgramCache]: Analyzing trace with hash 2038130755, now seen corresponding path program 1 times [2024-10-24 12:59:02,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:59:02,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872330660] [2024-10-24 12:59:02,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:59:02,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:59:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:59:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 12:59:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 12:59:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 12:59:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 12:59:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:59:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 12:59:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:59:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:59:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 12:59:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 12:59:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:59:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:59:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:59:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:59:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 12:59:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:59:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:59:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 12:59:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 12:59:02,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-24 12:59:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 12:59:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 12:59:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:02,952 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-10-24 12:59:02,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:59:02,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872330660] [2024-10-24 12:59:02,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872330660] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:59:02,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379593139] [2024-10-24 12:59:02,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:59:02,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:02,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:59:02,954 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:59:02,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 12:59:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:03,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 2395 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 12:59:03,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:59:03,356 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2024-10-24 12:59:03,356 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 12:59:03,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379593139] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:59:03,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 12:59:03,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-10-24 12:59:03,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749690352] [2024-10-24 12:59:03,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:59:03,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 12:59:03,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:59:03,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 12:59:03,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-24 12:59:03,359 INFO L87 Difference]: Start difference. First operand 200 states and 270 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-10-24 12:59:03,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:59:03,450 INFO L93 Difference]: Finished difference Result 365 states and 491 transitions. [2024-10-24 12:59:03,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 12:59:03,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 162 [2024-10-24 12:59:03,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:59:03,453 INFO L225 Difference]: With dead ends: 365 [2024-10-24 12:59:03,453 INFO L226 Difference]: Without dead ends: 201 [2024-10-24 12:59:03,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-24 12:59:03,454 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 0 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 12:59:03,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 494 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 12:59:03,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-10-24 12:59:03,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2024-10-24 12:59:03,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 120 states have (on average 1.225) internal successors, (147), 123 states have internal predecessors, (147), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-24 12:59:03,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 271 transitions. [2024-10-24 12:59:03,466 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 271 transitions. Word has length 162 [2024-10-24 12:59:03,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:59:03,466 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 271 transitions. [2024-10-24 12:59:03,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-10-24 12:59:03,467 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 271 transitions. [2024-10-24 12:59:03,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-24 12:59:03,468 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:59:03,468 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:59:03,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 12:59:03,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:03,670 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:59:03,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:59:03,670 INFO L85 PathProgramCache]: Analyzing trace with hash -533488821, now seen corresponding path program 1 times [2024-10-24 12:59:03,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:59:03,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088621334] [2024-10-24 12:59:03,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:59:03,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:59:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:59:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 12:59:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 12:59:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 12:59:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 12:59:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:59:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 12:59:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:59:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:59:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 12:59:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 12:59:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:59:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:59:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:59:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:59:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 12:59:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:59:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:59:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 12:59:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 12:59:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 12:59:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-24 12:59:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 12:59:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:04,811 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-10-24 12:59:04,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:59:04,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088621334] [2024-10-24 12:59:04,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088621334] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:59:04,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076641347] [2024-10-24 12:59:04,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:59:04,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:04,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:59:04,814 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:59:04,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 12:59:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:05,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 2433 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-24 12:59:05,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:59:05,339 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 149 proven. 1 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-10-24 12:59:05,339 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:59:05,569 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-10-24 12:59:05,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076641347] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 12:59:05,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 12:59:05,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 19 [2024-10-24 12:59:05,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926684347] [2024-10-24 12:59:05,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 12:59:05,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 12:59:05,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:59:05,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 12:59:05,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-10-24 12:59:05,572 INFO L87 Difference]: Start difference. First operand 201 states and 271 transitions. Second operand has 19 states, 17 states have (on average 5.176470588235294) internal successors, (88), 16 states have internal predecessors, (88), 6 states have call successors, (48), 5 states have call predecessors, (48), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2024-10-24 12:59:08,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:59:08,357 INFO L93 Difference]: Finished difference Result 395 states and 531 transitions. [2024-10-24 12:59:08,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 12:59:08,358 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.176470588235294) internal successors, (88), 16 states have internal predecessors, (88), 6 states have call successors, (48), 5 states have call predecessors, (48), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) Word has length 164 [2024-10-24 12:59:08,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:59:08,360 INFO L225 Difference]: With dead ends: 395 [2024-10-24 12:59:08,360 INFO L226 Difference]: Without dead ends: 225 [2024-10-24 12:59:08,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=764, Unknown=0, NotChecked=0, Total=930 [2024-10-24 12:59:08,362 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 256 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 2173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 12:59:08,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 1388 Invalid, 2173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 12:59:08,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-10-24 12:59:08,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 202. [2024-10-24 12:59:08,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 121 states have (on average 1.2231404958677685) internal successors, (148), 124 states have internal predecessors, (148), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-24 12:59:08,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 272 transitions. [2024-10-24 12:59:08,382 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 272 transitions. Word has length 164 [2024-10-24 12:59:08,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:59:08,382 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 272 transitions. [2024-10-24 12:59:08,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.176470588235294) internal successors, (88), 16 states have internal predecessors, (88), 6 states have call successors, (48), 5 states have call predecessors, (48), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2024-10-24 12:59:08,382 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 272 transitions. [2024-10-24 12:59:08,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-24 12:59:08,383 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:59:08,384 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:59:08,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 12:59:08,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:08,584 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:59:08,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:59:08,585 INFO L85 PathProgramCache]: Analyzing trace with hash -932958653, now seen corresponding path program 2 times [2024-10-24 12:59:08,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:59:08,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039382922] [2024-10-24 12:59:08,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:59:08,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:59:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:59:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 12:59:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 12:59:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 12:59:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 12:59:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:59:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 12:59:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:59:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:59:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 12:59:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 12:59:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:59:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:59:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:59:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:59:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 12:59:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:59:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:59:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 12:59:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 12:59:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 12:59:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 12:59:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-24 12:59:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:09,577 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2024-10-24 12:59:09,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:59:09,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039382922] [2024-10-24 12:59:09,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039382922] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:59:09,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663258643] [2024-10-24 12:59:09,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 12:59:09,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:09,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:59:09,582 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:59:09,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 12:59:10,760 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 12:59:10,761 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 12:59:10,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 2471 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-24 12:59:10,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:59:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-10-24 12:59:10,948 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:59:11,307 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2024-10-24 12:59:11,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663258643] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 12:59:11,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 12:59:11,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 9] total 24 [2024-10-24 12:59:11,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575183252] [2024-10-24 12:59:11,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 12:59:11,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-24 12:59:11,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:59:11,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-24 12:59:11,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2024-10-24 12:59:11,309 INFO L87 Difference]: Start difference. First operand 202 states and 272 transitions. Second operand has 24 states, 22 states have (on average 3.909090909090909) internal successors, (86), 21 states have internal predecessors, (86), 6 states have call successors, (45), 5 states have call predecessors, (45), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-24 12:59:14,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:59:14,135 INFO L93 Difference]: Finished difference Result 397 states and 533 transitions. [2024-10-24 12:59:14,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 12:59:14,135 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 3.909090909090909) internal successors, (86), 21 states have internal predecessors, (86), 6 states have call successors, (45), 5 states have call predecessors, (45), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) Word has length 166 [2024-10-24 12:59:14,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:59:14,137 INFO L225 Difference]: With dead ends: 397 [2024-10-24 12:59:14,138 INFO L226 Difference]: Without dead ends: 226 [2024-10-24 12:59:14,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=199, Invalid=1133, Unknown=0, NotChecked=0, Total=1332 [2024-10-24 12:59:14,141 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 258 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 2819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 12:59:14,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1824 Invalid, 2819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 2596 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 12:59:14,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-10-24 12:59:14,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 203. [2024-10-24 12:59:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 122 states have (on average 1.221311475409836) internal successors, (149), 125 states have internal predecessors, (149), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-24 12:59:14,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 273 transitions. [2024-10-24 12:59:14,169 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 273 transitions. Word has length 166 [2024-10-24 12:59:14,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:59:14,173 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 273 transitions. [2024-10-24 12:59:14,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 3.909090909090909) internal successors, (86), 21 states have internal predecessors, (86), 6 states have call successors, (45), 5 states have call predecessors, (45), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-24 12:59:14,174 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 273 transitions. [2024-10-24 12:59:14,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-24 12:59:14,175 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:59:14,175 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:59:14,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 12:59:14,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:14,380 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:59:14,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:59:14,381 INFO L85 PathProgramCache]: Analyzing trace with hash -282910901, now seen corresponding path program 3 times [2024-10-24 12:59:14,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:59:14,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274997505] [2024-10-24 12:59:14,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:59:14,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:59:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:59:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 12:59:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 12:59:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 12:59:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 12:59:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:59:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 12:59:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:59:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:59:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 12:59:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 12:59:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:59:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:59:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:59:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:59:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 12:59:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:59:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:59:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 12:59:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:59:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 12:59:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 12:59:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 12:59:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:15,639 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-10-24 12:59:15,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:59:15,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274997505] [2024-10-24 12:59:15,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274997505] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:59:15,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924331205] [2024-10-24 12:59:15,639 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 12:59:15,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:15,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:59:15,641 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:59:15,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 12:59:17,482 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-24 12:59:17,483 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 12:59:17,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 2040 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-24 12:59:17,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:59:17,767 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2024-10-24 12:59:17,768 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:59:18,159 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-10-24 12:59:18,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924331205] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 12:59:18,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 12:59:18,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 25 [2024-10-24 12:59:18,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768358394] [2024-10-24 12:59:18,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 12:59:18,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-24 12:59:18,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:59:18,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-24 12:59:18,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2024-10-24 12:59:18,161 INFO L87 Difference]: Start difference. First operand 203 states and 273 transitions. Second operand has 25 states, 23 states have (on average 3.739130434782609) internal successors, (86), 22 states have internal predecessors, (86), 6 states have call successors, (45), 5 states have call predecessors, (45), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-24 12:59:21,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:59:21,071 INFO L93 Difference]: Finished difference Result 399 states and 535 transitions. [2024-10-24 12:59:21,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 12:59:21,072 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 3.739130434782609) internal successors, (86), 22 states have internal predecessors, (86), 6 states have call successors, (45), 5 states have call predecessors, (45), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) Word has length 168 [2024-10-24 12:59:21,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:59:21,074 INFO L225 Difference]: With dead ends: 399 [2024-10-24 12:59:21,074 INFO L226 Difference]: Without dead ends: 227 [2024-10-24 12:59:21,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=221, Invalid=1261, Unknown=0, NotChecked=0, Total=1482 [2024-10-24 12:59:21,075 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 259 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 2124 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 2348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 2124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 12:59:21,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1503 Invalid, 2348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 2124 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 12:59:21,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-10-24 12:59:21,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 204. [2024-10-24 12:59:21,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 123 states have (on average 1.2195121951219512) internal successors, (150), 126 states have internal predecessors, (150), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-24 12:59:21,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 274 transitions. [2024-10-24 12:59:21,086 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 274 transitions. Word has length 168 [2024-10-24 12:59:21,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:59:21,086 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 274 transitions. [2024-10-24 12:59:21,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 3.739130434782609) internal successors, (86), 22 states have internal predecessors, (86), 6 states have call successors, (45), 5 states have call predecessors, (45), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-24 12:59:21,087 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 274 transitions. [2024-10-24 12:59:21,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-24 12:59:21,088 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:59:21,088 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:59:21,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 12:59:21,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:21,289 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:59:21,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:59:21,289 INFO L85 PathProgramCache]: Analyzing trace with hash -429247421, now seen corresponding path program 4 times [2024-10-24 12:59:21,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:59:21,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234925937] [2024-10-24 12:59:21,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:59:21,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:59:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:59:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 12:59:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 12:59:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 12:59:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 12:59:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:59:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 12:59:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:59:21,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:59:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 12:59:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 12:59:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:59:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:59:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:59:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:59:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 12:59:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:59:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:21,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:59:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:22,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:22,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:22,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 12:59:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:22,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 12:59:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:22,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 12:59:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:22,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 12:59:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:22,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:22,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:22,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-24 12:59:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:22,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:22,380 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2024-10-24 12:59:22,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:59:22,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234925937] [2024-10-24 12:59:22,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234925937] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:59:22,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978065577] [2024-10-24 12:59:22,380 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 12:59:22,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:22,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:59:22,382 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:59:22,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 12:59:22,885 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 12:59:22,885 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 12:59:22,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 2547 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-24 12:59:22,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:59:23,116 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 24 proven. 36 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-10-24 12:59:23,116 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:59:23,541 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 33 proven. 10 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2024-10-24 12:59:23,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978065577] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 12:59:23,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 12:59:23,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 11] total 32 [2024-10-24 12:59:23,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166286513] [2024-10-24 12:59:23,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 12:59:23,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-24 12:59:23,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:59:23,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-24 12:59:23,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=874, Unknown=0, NotChecked=0, Total=992 [2024-10-24 12:59:23,544 INFO L87 Difference]: Start difference. First operand 204 states and 274 transitions. Second operand has 32 states, 30 states have (on average 3.1333333333333333) internal successors, (94), 29 states have internal predecessors, (94), 6 states have call successors, (45), 5 states have call predecessors, (45), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-24 12:59:27,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:59:27,155 INFO L93 Difference]: Finished difference Result 401 states and 537 transitions. [2024-10-24 12:59:27,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 12:59:27,156 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 3.1333333333333333) internal successors, (94), 29 states have internal predecessors, (94), 6 states have call successors, (45), 5 states have call predecessors, (45), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) Word has length 170 [2024-10-24 12:59:27,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:59:27,158 INFO L225 Difference]: With dead ends: 401 [2024-10-24 12:59:27,158 INFO L226 Difference]: Without dead ends: 228 [2024-10-24 12:59:27,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=273, Invalid=1889, Unknown=0, NotChecked=0, Total=2162 [2024-10-24 12:59:27,160 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 262 mSDsluCounter, 2105 mSDsCounter, 0 mSdLazyCounter, 3265 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 3488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 3265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-24 12:59:27,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 2260 Invalid, 3488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 3265 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-24 12:59:27,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-10-24 12:59:27,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 205. [2024-10-24 12:59:27,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 124 states have (on average 1.217741935483871) internal successors, (151), 127 states have internal predecessors, (151), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-24 12:59:27,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 275 transitions. [2024-10-24 12:59:27,173 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 275 transitions. Word has length 170 [2024-10-24 12:59:27,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:59:27,174 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 275 transitions. [2024-10-24 12:59:27,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 3.1333333333333333) internal successors, (94), 29 states have internal predecessors, (94), 6 states have call successors, (45), 5 states have call predecessors, (45), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-24 12:59:27,174 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 275 transitions. [2024-10-24 12:59:27,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-24 12:59:27,176 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:59:27,176 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:59:27,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 12:59:27,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:27,381 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:59:27,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:59:27,381 INFO L85 PathProgramCache]: Analyzing trace with hash 868770635, now seen corresponding path program 5 times [2024-10-24 12:59:27,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:59:27,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916979399] [2024-10-24 12:59:27,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:59:27,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:59:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:27,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:27,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:59:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:27,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 12:59:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:27,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 12:59:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:27,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 12:59:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:27,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 12:59:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:27,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:59:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:27,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 12:59:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:27,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:59:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:27,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:59:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:27,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 12:59:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:27,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 12:59:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:59:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:59:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:59:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:59:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 12:59:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:59:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:59:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 12:59:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-24 12:59:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 12:59:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 12:59:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-24 12:59:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:28,491 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-10-24 12:59:28,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:59:28,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916979399] [2024-10-24 12:59:28,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916979399] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:59:28,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422745880] [2024-10-24 12:59:28,492 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 12:59:28,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:28,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:59:28,493 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:59:28,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 12:59:29,024 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-10-24 12:59:29,025 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 12:59:29,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-24 12:59:29,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:59:29,217 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 181 proven. 15 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-10-24 12:59:29,217 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:59:29,697 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-10-24 12:59:29,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422745880] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 12:59:29,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 12:59:29,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 31 [2024-10-24 12:59:29,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407995688] [2024-10-24 12:59:29,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 12:59:29,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-24 12:59:29,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:59:29,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-24 12:59:29,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=809, Unknown=0, NotChecked=0, Total=930 [2024-10-24 12:59:29,709 INFO L87 Difference]: Start difference. First operand 205 states and 275 transitions. Second operand has 31 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 28 states have internal predecessors, (100), 6 states have call successors, (48), 5 states have call predecessors, (48), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2024-10-24 12:59:32,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:59:32,670 INFO L93 Difference]: Finished difference Result 403 states and 539 transitions. [2024-10-24 12:59:32,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 12:59:32,670 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 28 states have internal predecessors, (100), 6 states have call successors, (48), 5 states have call predecessors, (48), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) Word has length 172 [2024-10-24 12:59:32,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:59:32,674 INFO L225 Difference]: With dead ends: 403 [2024-10-24 12:59:32,674 INFO L226 Difference]: Without dead ends: 229 [2024-10-24 12:59:32,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=289, Invalid=1873, Unknown=0, NotChecked=0, Total=2162 [2024-10-24 12:59:32,677 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 264 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-24 12:59:32,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 1610 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 2351 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-24 12:59:32,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-10-24 12:59:32,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 206. [2024-10-24 12:59:32,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 125 states have (on average 1.216) internal successors, (152), 128 states have internal predecessors, (152), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-24 12:59:32,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 276 transitions. [2024-10-24 12:59:32,700 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 276 transitions. Word has length 172 [2024-10-24 12:59:32,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:59:32,708 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 276 transitions. [2024-10-24 12:59:32,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 28 states have internal predecessors, (100), 6 states have call successors, (48), 5 states have call predecessors, (48), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2024-10-24 12:59:32,709 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 276 transitions. [2024-10-24 12:59:32,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-10-24 12:59:32,710 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:59:32,710 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:59:32,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-24 12:59:32,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-24 12:59:32,911 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:59:32,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:59:32,911 INFO L85 PathProgramCache]: Analyzing trace with hash 131955267, now seen corresponding path program 6 times [2024-10-24 12:59:32,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:59:32,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656350075] [2024-10-24 12:59:32,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:59:32,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:59:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:59:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 12:59:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 12:59:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 12:59:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 12:59:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:59:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 12:59:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:59:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:59:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 12:59:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 12:59:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:59:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:59:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:59:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:59:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 12:59:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:59:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:59:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:33,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:34,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:34,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 12:59:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:34,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 12:59:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:34,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-24 12:59:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:34,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-24 12:59:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:34,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:34,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:34,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 12:59:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:34,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:34,213 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-10-24 12:59:34,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:59:34,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656350075] [2024-10-24 12:59:34,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656350075] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:59:34,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566443466] [2024-10-24 12:59:34,214 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-24 12:59:34,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:34,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:59:34,216 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:59:34,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 12:59:37,846 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-10-24 12:59:37,846 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 12:59:37,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 2203 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-24 12:59:37,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:59:38,078 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2024-10-24 12:59:38,078 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:59:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 57 proven. 21 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-10-24 12:59:38,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566443466] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 12:59:38,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 12:59:38,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 34 [2024-10-24 12:59:38,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549237791] [2024-10-24 12:59:38,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 12:59:38,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-24 12:59:38,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:59:38,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-24 12:59:38,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=982, Unknown=0, NotChecked=0, Total=1122 [2024-10-24 12:59:38,564 INFO L87 Difference]: Start difference. First operand 206 states and 276 transitions. Second operand has 34 states, 32 states have (on average 2.96875) internal successors, (95), 31 states have internal predecessors, (95), 6 states have call successors, (45), 5 states have call predecessors, (45), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-24 12:59:42,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:59:42,374 INFO L93 Difference]: Finished difference Result 405 states and 541 transitions. [2024-10-24 12:59:42,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 12:59:42,374 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 2.96875) internal successors, (95), 31 states have internal predecessors, (95), 6 states have call successors, (45), 5 states have call predecessors, (45), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) Word has length 174 [2024-10-24 12:59:42,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:59:42,377 INFO L225 Difference]: With dead ends: 405 [2024-10-24 12:59:42,377 INFO L226 Difference]: Without dead ends: 230 [2024-10-24 12:59:42,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=326, Invalid=2224, Unknown=0, NotChecked=0, Total=2550 [2024-10-24 12:59:42,379 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 267 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 2995 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 3219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 2995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:59:42,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 2048 Invalid, 3219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 2995 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-24 12:59:42,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-10-24 12:59:42,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 207. [2024-10-24 12:59:42,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 126 states have (on average 1.2142857142857142) internal successors, (153), 129 states have internal predecessors, (153), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-24 12:59:42,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 277 transitions. [2024-10-24 12:59:42,401 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 277 transitions. Word has length 174 [2024-10-24 12:59:42,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:59:42,401 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 277 transitions. [2024-10-24 12:59:42,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 2.96875) internal successors, (95), 31 states have internal predecessors, (95), 6 states have call successors, (45), 5 states have call predecessors, (45), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-24 12:59:42,402 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 277 transitions. [2024-10-24 12:59:42,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-24 12:59:42,404 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:59:42,404 INFO L215 NwaCegarLoop]: trace histogram [14, 12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:59:42,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-24 12:59:42,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-24 12:59:42,608 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:59:42,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:59:42,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1985177419, now seen corresponding path program 7 times [2024-10-24 12:59:42,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:59:42,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374590372] [2024-10-24 12:59:42,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:59:42,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:59:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:59:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 12:59:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 12:59:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 12:59:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 12:59:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:59:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 12:59:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:59:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:59:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 12:59:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 12:59:43,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:59:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:59:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:59:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:59:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 12:59:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:59:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:59:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 12:59:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 12:59:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 12:59:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 12:59:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:43,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:44,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:44,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 12:59:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:44,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:44,018 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-10-24 12:59:44,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:59:44,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374590372] [2024-10-24 12:59:44,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374590372] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:59:44,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131541849] [2024-10-24 12:59:44,018 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-24 12:59:44,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:44,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:59:44,020 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:59:44,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-24 12:59:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:44,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 2661 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-24 12:59:44,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:59:45,029 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 209 proven. 28 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-10-24 12:59:45,030 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:59:45,543 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-10-24 12:59:45,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131541849] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 12:59:45,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 12:59:45,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 14] total 37 [2024-10-24 12:59:45,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892682679] [2024-10-24 12:59:45,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 12:59:45,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-10-24 12:59:45,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:59:45,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-10-24 12:59:45,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1156, Unknown=0, NotChecked=0, Total=1332 [2024-10-24 12:59:45,545 INFO L87 Difference]: Start difference. First operand 207 states and 277 transitions. Second operand has 37 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 34 states have internal predecessors, (106), 6 states have call successors, (48), 5 states have call predecessors, (48), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2024-10-24 12:59:49,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:59:49,113 INFO L93 Difference]: Finished difference Result 407 states and 543 transitions. [2024-10-24 12:59:49,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 12:59:49,114 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 34 states have internal predecessors, (106), 6 states have call successors, (48), 5 states have call predecessors, (48), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) Word has length 176 [2024-10-24 12:59:49,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:59:49,115 INFO L225 Difference]: With dead ends: 407 [2024-10-24 12:59:49,115 INFO L226 Difference]: Without dead ends: 231 [2024-10-24 12:59:49,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=388, Invalid=2582, Unknown=0, NotChecked=0, Total=2970 [2024-10-24 12:59:49,117 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 267 mSDsluCounter, 2327 mSDsCounter, 0 mSdLazyCounter, 3629 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 3854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 3629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-24 12:59:49,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 2482 Invalid, 3854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 3629 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-24 12:59:49,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-10-24 12:59:49,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 208. [2024-10-24 12:59:49,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 127 states have (on average 1.2125984251968505) internal successors, (154), 130 states have internal predecessors, (154), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-24 12:59:49,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 278 transitions. [2024-10-24 12:59:49,130 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 278 transitions. Word has length 176 [2024-10-24 12:59:49,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:59:49,130 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 278 transitions. [2024-10-24 12:59:49,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 34 states have internal predecessors, (106), 6 states have call successors, (48), 5 states have call predecessors, (48), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2024-10-24 12:59:49,131 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 278 transitions. [2024-10-24 12:59:49,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-24 12:59:49,131 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:59:49,132 INFO L215 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:59:49,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-24 12:59:49,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-24 12:59:49,336 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:59:49,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:59:49,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1024327747, now seen corresponding path program 8 times [2024-10-24 12:59:49,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:59:49,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919577871] [2024-10-24 12:59:49,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:59:49,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:59:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:49,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:49,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:59:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:49,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 12:59:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:49,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 12:59:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:49,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 12:59:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:49,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 12:59:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:49,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:59:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:49,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 12:59:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:49,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:59:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:49,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:59:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 12:59:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 12:59:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:59:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:59:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:59:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:59:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 12:59:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:59:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:59:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:59:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 12:59:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 12:59:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 12:59:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-24 12:59:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:50,569 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-10-24 12:59:50,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:59:50,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919577871] [2024-10-24 12:59:50,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919577871] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:59:50,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193364866] [2024-10-24 12:59:50,570 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 12:59:50,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:50,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:59:50,571 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:59:50,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-24 12:59:51,915 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 12:59:51,916 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 12:59:51,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 2699 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-24 12:59:51,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 12:59:52,219 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 96 proven. 36 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2024-10-24 12:59:52,219 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 12:59:52,803 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 89 proven. 36 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-10-24 12:59:52,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193364866] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 12:59:52,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 12:59:52,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 15] total 40 [2024-10-24 12:59:52,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948905918] [2024-10-24 12:59:52,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 12:59:52,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-10-24 12:59:52,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:59:52,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-10-24 12:59:52,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1379, Unknown=0, NotChecked=0, Total=1560 [2024-10-24 12:59:52,806 INFO L87 Difference]: Start difference. First operand 208 states and 278 transitions. Second operand has 40 states, 38 states have (on average 2.6578947368421053) internal successors, (101), 37 states have internal predecessors, (101), 6 states have call successors, (45), 5 states have call predecessors, (45), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-24 12:59:57,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:59:57,051 INFO L93 Difference]: Finished difference Result 409 states and 545 transitions. [2024-10-24 12:59:57,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-24 12:59:57,051 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 38 states have (on average 2.6578947368421053) internal successors, (101), 37 states have internal predecessors, (101), 6 states have call successors, (45), 5 states have call predecessors, (45), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) Word has length 178 [2024-10-24 12:59:57,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:59:57,053 INFO L225 Difference]: With dead ends: 409 [2024-10-24 12:59:57,053 INFO L226 Difference]: Without dead ends: 232 [2024-10-24 12:59:57,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 766 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=406, Invalid=3016, Unknown=0, NotChecked=0, Total=3422 [2024-10-24 12:59:57,055 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 268 mSDsluCounter, 2325 mSDsCounter, 0 mSdLazyCounter, 3689 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 2480 SdHoareTripleChecker+Invalid, 3912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 3689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-24 12:59:57,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 2480 Invalid, 3912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 3689 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-24 12:59:57,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-10-24 12:59:57,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 209. [2024-10-24 12:59:57,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 128 states have (on average 1.2109375) internal successors, (155), 131 states have internal predecessors, (155), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-24 12:59:57,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 279 transitions. [2024-10-24 12:59:57,065 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 279 transitions. Word has length 178 [2024-10-24 12:59:57,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:59:57,065 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 279 transitions. [2024-10-24 12:59:57,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 38 states have (on average 2.6578947368421053) internal successors, (101), 37 states have internal predecessors, (101), 6 states have call successors, (45), 5 states have call predecessors, (45), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-24 12:59:57,066 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 279 transitions. [2024-10-24 12:59:57,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-10-24 12:59:57,066 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:59:57,066 INFO L215 NwaCegarLoop]: trace histogram [18, 12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:59:57,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-24 12:59:57,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-24 12:59:57,267 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:59:57,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:59:57,267 INFO L85 PathProgramCache]: Analyzing trace with hash -487314613, now seen corresponding path program 9 times [2024-10-24 12:59:57,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:59:57,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525282406] [2024-10-24 12:59:57,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:59:57,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:59:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 12:59:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 12:59:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 12:59:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 12:59:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 12:59:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 12:59:58,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 12:59:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 12:59:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 12:59:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 12:59:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 12:59:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 12:59:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 12:59:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 12:59:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 12:59:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 12:59:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:59:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:59:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 12:59:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 12:59:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 12:59:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 12:59:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-24 12:59:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 12:59:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:59:58,686 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-10-24 12:59:58,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:59:58,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525282406] [2024-10-24 12:59:58,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525282406] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 12:59:58,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625551564] [2024-10-24 12:59:58,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 12:59:58,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 12:59:58,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:59:58,689 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 12:59:58,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-24 13:00:06,971 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-24 13:00:06,972 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 13:00:06,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 2272 conjuncts, 84 conjuncts are in the unsatisfiable core [2024-10-24 13:00:07,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 13:00:07,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-24 13:00:08,104 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 148 proven. 45 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-10-24 13:00:08,105 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 13:00:08,812 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 13:00:08,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 57 [2024-10-24 13:00:08,860 INFO L349 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2024-10-24 13:00:08,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 63 [2024-10-24 13:00:08,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 6 [2024-10-24 13:00:08,906 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 13:00:08,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 44 [2024-10-24 13:00:08,942 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 13:00:08,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 67 [2024-10-24 13:00:09,320 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 13:00:09,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 151 treesize of output 189 [2024-10-24 13:00:11,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-10-24 13:00:11,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-10-24 13:00:11,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-10-24 13:00:11,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-10-24 13:00:12,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-10-24 13:00:12,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-10-24 13:00:13,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-10-24 13:00:13,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-10-24 13:00:13,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-10-24 13:00:13,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-10-24 13:00:14,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5