./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_capacity_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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_capacity_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f5906986fe70be99cb7145aeb70b9be3804e6f6ae12fcaa8e449985abfd2c954 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 07:27:16,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 07:27:16,451 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-13 07:27:16,456 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 07:27:16,457 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 07:27:16,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 07:27:16,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 07:27:16,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 07:27:16,473 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 07:27:16,473 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 07:27:16,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 07:27:16,473 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 07:27:16,474 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 07:27:16,474 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 07:27:16,474 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 07:27:16,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 07:27:16,475 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 07:27:16,475 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 07:27:16,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 07:27:16,476 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 07:27:16,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 07:27:16,476 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 07:27:16,477 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 07:27:16,477 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 07:27:16,477 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 07:27:16,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 07:27:16,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 07:27:16,480 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 07:27:16,481 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 07:27:16,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:27:16,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 07:27:16,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 07:27:16,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 07:27:16,481 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 07:27:16,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 07:27:16,482 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 07:27:16,482 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 07:27:16,482 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 07:27:16,482 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 07:27:16,482 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5906986fe70be99cb7145aeb70b9be3804e6f6ae12fcaa8e449985abfd2c954 [2024-10-13 07:27:16,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 07:27:16,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 07:27:16,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 07:27:16,715 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 07:27:16,716 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 07:27:16,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i [2024-10-13 07:27:17,946 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 07:27:18,273 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 07:27:18,274 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness_negated.i [2024-10-13 07:27:18,302 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5511c87ed/52b66a1584cc4909953c7cbf2bae9189/FLAG909758e8b [2024-10-13 07:27:18,499 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5511c87ed/52b66a1584cc4909953c7cbf2bae9189 [2024-10-13 07:27:18,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 07:27:18,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 07:27:18,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 07:27:18,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 07:27:18,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 07:27:18,509 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:27:18" (1/1) ... [2024-10-13 07:27:18,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9b8e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:18, skipping insertion in model container [2024-10-13 07:27:18,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:27:18" (1/1) ... [2024-10-13 07:27:18,579 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 07:27:18,808 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_capacity_harness_negated.i[4501,4514] [2024-10-13 07:27:18,816 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_capacity_harness_negated.i[4561,4574] [2024-10-13 07:27:19,393 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,398 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,399 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,399 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,400 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,412 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,412 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,415 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,415 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,714 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,715 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:27:19,797 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 07:27:19,812 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_capacity_harness_negated.i[4501,4514] [2024-10-13 07:27:19,813 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_capacity_harness_negated.i[4561,4574] [2024-10-13 07:27:19,863 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,864 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,864 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,865 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,867 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,872 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,875 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,876 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,876 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,953 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,953 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:19,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7671-7682] [2024-10-13 07:27:19,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:27:20,159 INFO L204 MainTranslator]: Completed translation [2024-10-13 07:27:20,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:20 WrapperNode [2024-10-13 07:27:20,160 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 07:27:20,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 07:27:20,161 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 07:27:20,161 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 07:27:20,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:20" (1/1) ... [2024-10-13 07:27:20,222 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:20" (1/1) ... [2024-10-13 07:27:20,288 INFO L138 Inliner]: procedures = 678, calls = 1542, calls flagged for inlining = 54, calls inlined = 10, statements flattened = 694 [2024-10-13 07:27:20,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 07:27:20,288 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 07:27:20,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 07:27:20,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 07:27:20,301 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:20" (1/1) ... [2024-10-13 07:27:20,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:20" (1/1) ... [2024-10-13 07:27:20,306 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:20" (1/1) ... [2024-10-13 07:27:20,372 INFO L175 MemorySlicer]: Split 334 memory accesses to 6 slices as follows [6, 2, 236, 3, 80, 7]. 71 percent of accesses are in the largest equivalence class. The 265 initializations are split as follows [0, 2, 236, 1, 21, 5]. The 7 writes are split as follows [2, 0, 0, 1, 4, 0]. [2024-10-13 07:27:20,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:20" (1/1) ... [2024-10-13 07:27:20,373 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:20" (1/1) ... [2024-10-13 07:27:20,405 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:20" (1/1) ... [2024-10-13 07:27:20,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:20" (1/1) ... [2024-10-13 07:27:20,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:20" (1/1) ... [2024-10-13 07:27:20,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:20" (1/1) ... [2024-10-13 07:27:20,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 07:27:20,444 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 07:27:20,444 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 07:27:20,444 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 07:27:20,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:20" (1/1) ... [2024-10-13 07:27:20,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:27:20,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:20,474 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) [2024-10-13 07:27:20,477 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 [2024-10-13 07:27:20,512 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-10-13 07:27:20,512 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-10-13 07:27:20,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 07:27:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-10-13 07:27:20,514 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-10-13 07:27:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-13 07:27:20,515 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-13 07:27:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-13 07:27:20,515 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-13 07:27:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 07:27:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 07:27:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 07:27:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 07:27:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 07:27:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-13 07:27:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-13 07:27:20,516 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-13 07:27:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 07:27:20,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 07:27:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 07:27:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 07:27:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-10-13 07:27:20,517 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-10-13 07:27:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 07:27:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 07:27:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 07:27:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-13 07:27:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-13 07:27:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-13 07:27:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 07:27:20,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 07:27:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-13 07:27:20,518 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-13 07:27:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-10-13 07:27:20,518 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-10-13 07:27:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-10-13 07:27:20,518 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-10-13 07:27:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-13 07:27:20,518 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-13 07:27:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-10-13 07:27:20,519 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-10-13 07:27:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 07:27:20,520 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 07:27:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 07:27:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 07:27:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 07:27:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 07:27:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-13 07:27:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-13 07:27:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-13 07:27:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-13 07:27:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-13 07:27:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-13 07:27:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-13 07:27:20,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-13 07:27:20,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-13 07:27:20,522 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-13 07:27:20,522 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-13 07:27:20,522 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-13 07:27:20,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-13 07:27:20,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 07:27:20,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 07:27:20,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 07:27:20,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 07:27:20,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 07:27:20,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-13 07:27:20,523 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2024-10-13 07:27:20,523 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2024-10-13 07:27:20,523 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-10-13 07:27:20,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-10-13 07:27:20,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 07:27:20,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 07:27:20,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 07:27:20,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 07:27:20,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 07:27:20,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-13 07:27:20,749 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 07:27:20,753 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 07:27:21,363 INFO L? ?]: Removed 144 outVars from TransFormulas that were not future-live. [2024-10-13 07:27:21,363 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 07:27:21,438 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 07:27:21,439 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 07:27:21,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:27:21 BoogieIcfgContainer [2024-10-13 07:27:21,439 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 07:27:21,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 07:27:21,443 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 07:27:21,445 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 07:27:21,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:27:18" (1/3) ... [2024-10-13 07:27:21,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da51c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:27:21, skipping insertion in model container [2024-10-13 07:27:21,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:20" (2/3) ... [2024-10-13 07:27:21,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da51c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:27:21, skipping insertion in model container [2024-10-13 07:27:21,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:27:21" (3/3) ... [2024-10-13 07:27:21,448 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_capacity_harness_negated.i [2024-10-13 07:27:21,461 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 07:27:21,461 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 07:27:21,514 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 07:27:21,520 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;@65f4a44f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 07:27:21,521 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 07:27:21,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 168 states, 102 states have (on average 1.2450980392156863) internal successors, (127), 103 states have internal predecessors, (127), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-10-13 07:27:21,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-13 07:27:21,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:21,536 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:21,537 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:21,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:21,541 INFO L85 PathProgramCache]: Analyzing trace with hash 99044165, now seen corresponding path program 1 times [2024-10-13 07:27:21,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:21,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824390804] [2024-10-13 07:27:21,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:21,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:27:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 07:27:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 07:27:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 07:27:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 07:27:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 07:27:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-13 07:27:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 07:27:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-10-13 07:27:22,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:22,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824390804] [2024-10-13 07:27:22,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824390804] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:22,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:22,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 07:27:22,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769909531] [2024-10-13 07:27:22,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:22,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:27:22,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:22,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:27:22,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:27:22,344 INFO L87 Difference]: Start difference. First operand has 168 states, 102 states have (on average 1.2450980392156863) internal successors, (127), 103 states have internal predecessors, (127), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-13 07:27:23,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:23,423 INFO L93 Difference]: Finished difference Result 341 states and 483 transitions. [2024-10-13 07:27:23,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 07:27:23,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 127 [2024-10-13 07:27:23,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:23,432 INFO L225 Difference]: With dead ends: 341 [2024-10-13 07:27:23,432 INFO L226 Difference]: Without dead ends: 191 [2024-10-13 07:27:23,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:27:23,439 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 292 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:23,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 102 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 07:27:23,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-13 07:27:23,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 166. [2024-10-13 07:27:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 101 states have (on average 1.2178217821782178) internal successors, (123), 102 states have internal predecessors, (123), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-13 07:27:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 216 transitions. [2024-10-13 07:27:23,491 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 216 transitions. Word has length 127 [2024-10-13 07:27:23,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:23,492 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 216 transitions. [2024-10-13 07:27:23,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-13 07:27:23,492 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 216 transitions. [2024-10-13 07:27:23,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-13 07:27:23,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:23,497 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:23,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 07:27:23,497 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:23,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:23,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1923143877, now seen corresponding path program 1 times [2024-10-13 07:27:23,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:23,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110417074] [2024-10-13 07:27:23,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:23,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:23,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:24,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:27:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:24,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 07:27:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:24,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-13 07:27:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:24,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 07:27:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:24,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 07:27:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:24,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 07:27:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:24,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-13 07:27:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:24,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 07:27:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:24,061 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-10-13 07:27:24,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:24,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110417074] [2024-10-13 07:27:24,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110417074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:24,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:24,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 07:27:24,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515898020] [2024-10-13 07:27:24,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:24,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 07:27:24,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:24,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 07:27:24,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-13 07:27:24,065 INFO L87 Difference]: Start difference. First operand 166 states and 216 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-10-13 07:27:25,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:25,523 INFO L93 Difference]: Finished difference Result 310 states and 410 transitions. [2024-10-13 07:27:25,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 07:27:25,524 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 127 [2024-10-13 07:27:25,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:25,526 INFO L225 Difference]: With dead ends: 310 [2024-10-13 07:27:25,526 INFO L226 Difference]: Without dead ends: 191 [2024-10-13 07:27:25,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-10-13 07:27:25,528 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 289 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:25,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 149 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 07:27:25,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-13 07:27:25,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 166. [2024-10-13 07:27:25,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 101 states have (on average 1.2079207920792079) internal successors, (122), 102 states have internal predecessors, (122), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-13 07:27:25,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 215 transitions. [2024-10-13 07:27:25,556 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 215 transitions. Word has length 127 [2024-10-13 07:27:25,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:25,557 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 215 transitions. [2024-10-13 07:27:25,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-10-13 07:27:25,557 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 215 transitions. [2024-10-13 07:27:25,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-13 07:27:25,558 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:25,558 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:25,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 07:27:25,559 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:25,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:25,559 INFO L85 PathProgramCache]: Analyzing trace with hash 204354829, now seen corresponding path program 1 times [2024-10-13 07:27:25,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:25,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377632740] [2024-10-13 07:27:25,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:25,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:25,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:25,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:26,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:26,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:26,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:26,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:26,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-13 07:27:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:26,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-13 07:27:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:26,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-13 07:27:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:26,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-13 07:27:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:26,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-13 07:27:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:26,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-13 07:27:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:26,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:27:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:26,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-13 07:27:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:26,176 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2024-10-13 07:27:26,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:26,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377632740] [2024-10-13 07:27:26,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377632740] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:26,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084758026] [2024-10-13 07:27:26,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:26,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:26,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:26,179 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) [2024-10-13 07:27:26,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 07:27:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:26,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 2363 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 07:27:26,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:26,691 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-10-13 07:27:26,691 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:26,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084758026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:26,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:26,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-10-13 07:27:26,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848274848] [2024-10-13 07:27:26,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:26,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 07:27:26,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:26,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 07:27:26,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2024-10-13 07:27:26,694 INFO L87 Difference]: Start difference. First operand 166 states and 215 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-13 07:27:27,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:27,018 INFO L93 Difference]: Finished difference Result 304 states and 399 transitions. [2024-10-13 07:27:27,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 07:27:27,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 135 [2024-10-13 07:27:27,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:27,023 INFO L225 Difference]: With dead ends: 304 [2024-10-13 07:27:27,025 INFO L226 Difference]: Without dead ends: 168 [2024-10-13 07:27:27,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-10-13 07:27:27,027 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 37 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:27,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1021 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 07:27:27,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-10-13 07:27:27,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-10-13 07:27:27,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 102 states have (on average 1.2058823529411764) internal successors, (123), 104 states have internal predecessors, (123), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (49), 46 states have call predecessors, (49), 46 states have call successors, (49) [2024-10-13 07:27:27,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 219 transitions. [2024-10-13 07:27:27,053 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 219 transitions. Word has length 135 [2024-10-13 07:27:27,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:27,054 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 219 transitions. [2024-10-13 07:27:27,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-13 07:27:27,054 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 219 transitions. [2024-10-13 07:27:27,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-13 07:27:27,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:27,056 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:27,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-13 07:27:27,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:27,260 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:27,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:27,260 INFO L85 PathProgramCache]: Analyzing trace with hash -78313466, now seen corresponding path program 1 times [2024-10-13 07:27:27,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:27,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956031200] [2024-10-13 07:27:27,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:27,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 07:27:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 07:27:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 07:27:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 07:27:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 07:27:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 07:27:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:27:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:27:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,063 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-10-13 07:27:28,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:28,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956031200] [2024-10-13 07:27:28,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956031200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:28,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:28,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 07:27:28,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14070634] [2024-10-13 07:27:28,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:28,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 07:27:28,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:28,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 07:27:28,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:27:28,065 INFO L87 Difference]: Start difference. First operand 168 states and 219 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 4 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-10-13 07:27:29,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:29,386 INFO L93 Difference]: Finished difference Result 291 states and 381 transitions. [2024-10-13 07:27:29,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 07:27:29,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 4 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 148 [2024-10-13 07:27:29,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:29,388 INFO L225 Difference]: With dead ends: 291 [2024-10-13 07:27:29,388 INFO L226 Difference]: Without dead ends: 172 [2024-10-13 07:27:29,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-10-13 07:27:29,391 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 247 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:29,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 156 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 07:27:29,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-10-13 07:27:29,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 168. [2024-10-13 07:27:29,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 102 states have (on average 1.196078431372549) internal successors, (122), 104 states have internal predecessors, (122), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (49), 46 states have call predecessors, (49), 46 states have call successors, (49) [2024-10-13 07:27:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 218 transitions. [2024-10-13 07:27:29,406 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 218 transitions. Word has length 148 [2024-10-13 07:27:29,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:29,407 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 218 transitions. [2024-10-13 07:27:29,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 4 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-10-13 07:27:29,407 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 218 transitions. [2024-10-13 07:27:29,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-13 07:27:29,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:29,408 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:29,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 07:27:29,409 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:29,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:29,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1212795781, now seen corresponding path program 1 times [2024-10-13 07:27:29,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:29,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112963104] [2024-10-13 07:27:29,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:29,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:30,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:30,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:30,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:30,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:30,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 07:27:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:30,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:27:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:30,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-13 07:27:30,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:30,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-13 07:27:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:30,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-13 07:27:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:30,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 07:27:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:30,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-13 07:27:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:30,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-13 07:27:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:30,221 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-13 07:27:30,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:30,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112963104] [2024-10-13 07:27:30,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112963104] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:30,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379886190] [2024-10-13 07:27:30,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:30,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:30,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:30,223 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) [2024-10-13 07:27:30,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 07:27:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:30,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 2570 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-13 07:27:30,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:30,812 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-13 07:27:30,812 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:30,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379886190] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:30,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:30,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2024-10-13 07:27:30,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145569700] [2024-10-13 07:27:30,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:30,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 07:27:30,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:30,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 07:27:30,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2024-10-13 07:27:30,815 INFO L87 Difference]: Start difference. First operand 168 states and 218 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-10-13 07:27:31,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:31,183 INFO L93 Difference]: Finished difference Result 303 states and 394 transitions. [2024-10-13 07:27:31,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 07:27:31,183 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 164 [2024-10-13 07:27:31,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:31,185 INFO L225 Difference]: With dead ends: 303 [2024-10-13 07:27:31,185 INFO L226 Difference]: Without dead ends: 168 [2024-10-13 07:27:31,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2024-10-13 07:27:31,186 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 59 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:31,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1125 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 07:27:31,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-10-13 07:27:31,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-10-13 07:27:31,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 102 states have (on average 1.196078431372549) internal successors, (122), 104 states have internal predecessors, (122), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2024-10-13 07:27:31,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 217 transitions. [2024-10-13 07:27:31,198 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 217 transitions. Word has length 164 [2024-10-13 07:27:31,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:31,198 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 217 transitions. [2024-10-13 07:27:31,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-10-13 07:27:31,198 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 217 transitions. [2024-10-13 07:27:31,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-13 07:27:31,199 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:31,200 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:31,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 07:27:31,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:31,400 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:31,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:31,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1390049228, now seen corresponding path program 2 times [2024-10-13 07:27:31,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:31,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248150768] [2024-10-13 07:27:31,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:31,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:27:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:27:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:27:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-13 07:27:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:27:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 07:27:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-13 07:27:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-13 07:27:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,719 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-10-13 07:27:32,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:32,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248150768] [2024-10-13 07:27:32,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248150768] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:32,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632194998] [2024-10-13 07:27:32,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 07:27:32,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:32,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:32,722 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) [2024-10-13 07:27:32,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 07:27:33,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 07:27:33,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:27:33,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 1798 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-13 07:27:33,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:33,208 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-10-13 07:27:33,208 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:33,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632194998] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:33,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:33,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 19 [2024-10-13 07:27:33,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266060428] [2024-10-13 07:27:33,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:33,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 07:27:33,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:33,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 07:27:33,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2024-10-13 07:27:33,210 INFO L87 Difference]: Start difference. First operand 168 states and 217 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-13 07:27:33,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:33,418 INFO L93 Difference]: Finished difference Result 176 states and 225 transitions. [2024-10-13 07:27:33,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 07:27:33,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 177 [2024-10-13 07:27:33,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:33,420 INFO L225 Difference]: With dead ends: 176 [2024-10-13 07:27:33,420 INFO L226 Difference]: Without dead ends: 174 [2024-10-13 07:27:33,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2024-10-13 07:27:33,421 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 3 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:33,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 979 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 07:27:33,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-10-13 07:27:33,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 173. [2024-10-13 07:27:33,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 105 states have (on average 1.1904761904761905) internal successors, (125), 107 states have internal predecessors, (125), 48 states have call successors, (48), 18 states have call predecessors, (48), 19 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2024-10-13 07:27:33,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 222 transitions. [2024-10-13 07:27:33,433 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 222 transitions. Word has length 177 [2024-10-13 07:27:33,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:33,434 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 222 transitions. [2024-10-13 07:27:33,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-13 07:27:33,434 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 222 transitions. [2024-10-13 07:27:33,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-10-13 07:27:33,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:33,435 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:33,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 07:27:33,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:33,640 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:33,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:33,640 INFO L85 PathProgramCache]: Analyzing trace with hash 118392555, now seen corresponding path program 3 times [2024-10-13 07:27:33,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:33,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148216211] [2024-10-13 07:27:33,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:33,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:34,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:27:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:27:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:27:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-13 07:27:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:27:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 07:27:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-13 07:27:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-13 07:27:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,930 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-10-13 07:27:34,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:34,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148216211] [2024-10-13 07:27:34,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148216211] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:34,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592972803] [2024-10-13 07:27:34,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 07:27:34,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:34,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:34,932 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) [2024-10-13 07:27:34,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 07:27:35,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-13 07:27:35,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:27:35,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 2000 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-13 07:27:35,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:35,886 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-10-13 07:27:35,886 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:27:36,168 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2024-10-13 07:27:36,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592972803] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 07:27:36,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 07:27:36,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 6, 7] total 21 [2024-10-13 07:27:36,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876262629] [2024-10-13 07:27:36,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 07:27:36,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-13 07:27:36,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:36,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-13 07:27:36,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2024-10-13 07:27:36,171 INFO L87 Difference]: Start difference. First operand 173 states and 222 transitions. Second operand has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 17 states have internal predecessors, (116), 7 states have call successors, (52), 6 states have call predecessors, (52), 5 states have return successors, (47), 7 states have call predecessors, (47), 7 states have call successors, (47) [2024-10-13 07:27:38,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:38,482 INFO L93 Difference]: Finished difference Result 309 states and 400 transitions. [2024-10-13 07:27:38,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-13 07:27:38,483 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 17 states have internal predecessors, (116), 7 states have call successors, (52), 6 states have call predecessors, (52), 5 states have return successors, (47), 7 states have call predecessors, (47), 7 states have call successors, (47) Word has length 190 [2024-10-13 07:27:38,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:38,484 INFO L225 Difference]: With dead ends: 309 [2024-10-13 07:27:38,486 INFO L226 Difference]: Without dead ends: 183 [2024-10-13 07:27:38,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=187, Invalid=1219, Unknown=0, NotChecked=0, Total=1406 [2024-10-13 07:27:38,487 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 364 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 2282 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 2558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 2282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:38,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 362 Invalid, 2558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 2282 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-13 07:27:38,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-10-13 07:27:38,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 168. [2024-10-13 07:27:38,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 103 states have (on average 1.1844660194174756) internal successors, (122), 104 states have internal predecessors, (122), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-13 07:27:38,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 215 transitions. [2024-10-13 07:27:38,504 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 215 transitions. Word has length 190 [2024-10-13 07:27:38,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:38,504 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 215 transitions. [2024-10-13 07:27:38,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 17 states have internal predecessors, (116), 7 states have call successors, (52), 6 states have call predecessors, (52), 5 states have return successors, (47), 7 states have call predecessors, (47), 7 states have call successors, (47) [2024-10-13 07:27:38,505 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 215 transitions. [2024-10-13 07:27:38,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-10-13 07:27:38,507 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:38,507 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:38,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 07:27:38,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:38,707 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:38,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:38,708 INFO L85 PathProgramCache]: Analyzing trace with hash -226216836, now seen corresponding path program 1 times [2024-10-13 07:27:38,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:38,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442401156] [2024-10-13 07:27:38,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:38,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:38,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:27:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:27:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:27:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-13 07:27:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:27:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 07:27:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 07:27:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-13 07:27:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:39,320 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2024-10-13 07:27:39,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:39,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442401156] [2024-10-13 07:27:39,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442401156] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:39,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:39,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 07:27:39,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028985107] [2024-10-13 07:27:39,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:39,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 07:27:39,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:39,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 07:27:39,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 07:27:39,322 INFO L87 Difference]: Start difference. First operand 168 states and 215 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-13 07:27:40,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:40,149 INFO L93 Difference]: Finished difference Result 294 states and 377 transitions. [2024-10-13 07:27:40,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 07:27:40,150 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 203 [2024-10-13 07:27:40,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:40,151 INFO L225 Difference]: With dead ends: 294 [2024-10-13 07:27:40,151 INFO L226 Difference]: Without dead ends: 175 [2024-10-13 07:27:40,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-13 07:27:40,152 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 277 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:40,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 181 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 07:27:40,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-10-13 07:27:40,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 170. [2024-10-13 07:27:40,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 105 states have (on average 1.180952380952381) internal successors, (124), 106 states have internal predecessors, (124), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-13 07:27:40,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 217 transitions. [2024-10-13 07:27:40,163 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 217 transitions. Word has length 203 [2024-10-13 07:27:40,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:40,163 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 217 transitions. [2024-10-13 07:27:40,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-13 07:27:40,163 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 217 transitions. [2024-10-13 07:27:40,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-10-13 07:27:40,164 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:40,165 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:40,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 07:27:40,165 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:40,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:40,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1098639358, now seen corresponding path program 1 times [2024-10-13 07:27:40,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:40,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185929798] [2024-10-13 07:27:40,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:40,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:27:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:27:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:27:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-13 07:27:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:27:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 07:27:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 07:27:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-13 07:27:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-10-13 07:27:43,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:43,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185929798] [2024-10-13 07:27:43,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185929798] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:43,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407545366] [2024-10-13 07:27:43,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:43,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:43,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:43,735 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) [2024-10-13 07:27:43,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 07:27:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:44,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 2967 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-13 07:27:44,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:44,438 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-10-13 07:27:44,438 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:44,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407545366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:44,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:44,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [16] total 23 [2024-10-13 07:27:44,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236966043] [2024-10-13 07:27:44,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:44,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 07:27:44,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:44,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 07:27:44,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2024-10-13 07:27:44,440 INFO L87 Difference]: Start difference. First operand 170 states and 217 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 5 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2024-10-13 07:27:45,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:45,564 INFO L93 Difference]: Finished difference Result 314 states and 405 transitions. [2024-10-13 07:27:45,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 07:27:45,565 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 5 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 203 [2024-10-13 07:27:45,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:45,566 INFO L225 Difference]: With dead ends: 314 [2024-10-13 07:27:45,567 INFO L226 Difference]: Without dead ends: 193 [2024-10-13 07:27:45,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2024-10-13 07:27:45,568 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 68 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:45,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1291 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-13 07:27:45,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-10-13 07:27:45,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 181. [2024-10-13 07:27:45,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 115 states have (on average 1.191304347826087) internal successors, (137), 116 states have internal predecessors, (137), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (50), 47 states have call predecessors, (50), 46 states have call successors, (50) [2024-10-13 07:27:45,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 234 transitions. [2024-10-13 07:27:45,579 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 234 transitions. Word has length 203 [2024-10-13 07:27:45,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:45,580 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 234 transitions. [2024-10-13 07:27:45,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 5 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2024-10-13 07:27:45,580 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 234 transitions. [2024-10-13 07:27:45,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-10-13 07:27:45,582 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:45,582 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:45,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-13 07:27:45,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:45,783 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:45,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:45,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1605991420, now seen corresponding path program 1 times [2024-10-13 07:27:45,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:45,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328596601] [2024-10-13 07:27:45,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:45,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:27:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:27:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:27:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-13 07:27:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:27:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 07:27:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 07:27:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-13 07:27:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:46,881 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2024-10-13 07:27:46,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:46,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328596601] [2024-10-13 07:27:46,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328596601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:46,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:46,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 07:27:46,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454701000] [2024-10-13 07:27:46,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:46,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 07:27:46,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:46,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 07:27:46,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:27:46,884 INFO L87 Difference]: Start difference. First operand 181 states and 234 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-13 07:27:47,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:47,988 INFO L93 Difference]: Finished difference Result 321 states and 416 transitions. [2024-10-13 07:27:47,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 07:27:47,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 203 [2024-10-13 07:27:47,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:47,990 INFO L225 Difference]: With dead ends: 321 [2024-10-13 07:27:47,990 INFO L226 Difference]: Without dead ends: 189 [2024-10-13 07:27:47,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-10-13 07:27:47,991 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 225 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:47,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 237 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 07:27:47,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-10-13 07:27:48,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 185. [2024-10-13 07:27:48,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 119 states have (on average 1.184873949579832) internal successors, (141), 120 states have internal predecessors, (141), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (50), 47 states have call predecessors, (50), 46 states have call successors, (50) [2024-10-13 07:27:48,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 238 transitions. [2024-10-13 07:27:48,012 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 238 transitions. Word has length 203 [2024-10-13 07:27:48,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:48,013 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 238 transitions. [2024-10-13 07:27:48,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-13 07:27:48,013 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 238 transitions. [2024-10-13 07:27:48,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-10-13 07:27:48,014 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:48,015 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:48,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 07:27:48,015 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:48,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:48,015 INFO L85 PathProgramCache]: Analyzing trace with hash 41908156, now seen corresponding path program 1 times [2024-10-13 07:27:48,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:48,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952714119] [2024-10-13 07:27:48,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:48,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:27:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:27:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:27:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-13 07:27:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:27:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 07:27:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 07:27:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-13 07:27:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:48,567 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-10-13 07:27:48,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:48,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952714119] [2024-10-13 07:27:48,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952714119] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:48,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851021236] [2024-10-13 07:27:48,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:48,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:48,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:48,570 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) [2024-10-13 07:27:48,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 07:27:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:49,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 2962 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 07:27:49,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:49,057 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-13 07:27:49,057 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:49,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851021236] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:49,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:49,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 8 [2024-10-13 07:27:49,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282081367] [2024-10-13 07:27:49,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:49,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 07:27:49,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:49,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 07:27:49,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 07:27:49,059 INFO L87 Difference]: Start difference. First operand 185 states and 238 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-10-13 07:27:49,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:49,188 INFO L93 Difference]: Finished difference Result 321 states and 417 transitions. [2024-10-13 07:27:49,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 07:27:49,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 203 [2024-10-13 07:27:49,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:49,190 INFO L225 Difference]: With dead ends: 321 [2024-10-13 07:27:49,191 INFO L226 Difference]: Without dead ends: 185 [2024-10-13 07:27:49,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 07:27:49,192 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 0 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:49,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 590 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 07:27:49,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-10-13 07:27:49,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-10-13 07:27:49,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 119 states have (on average 1.1764705882352942) internal successors, (140), 120 states have internal predecessors, (140), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (50), 47 states have call predecessors, (50), 46 states have call successors, (50) [2024-10-13 07:27:49,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 237 transitions. [2024-10-13 07:27:49,203 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 237 transitions. Word has length 203 [2024-10-13 07:27:49,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:49,204 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 237 transitions. [2024-10-13 07:27:49,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-10-13 07:27:49,204 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 237 transitions. [2024-10-13 07:27:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-10-13 07:27:49,205 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:49,205 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:49,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-13 07:27:49,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:49,406 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:49,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:49,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1763316950, now seen corresponding path program 1 times [2024-10-13 07:27:49,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:49,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700487923] [2024-10-13 07:27:49,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:49,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-13 07:27:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-13 07:27:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-13 07:27:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 07:27:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 07:27:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-13 07:27:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-13 07:27:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-13 07:27:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,587 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2024-10-13 07:27:50,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:50,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700487923] [2024-10-13 07:27:50,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700487923] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:50,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847994619] [2024-10-13 07:27:50,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:50,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:50,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:50,589 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) [2024-10-13 07:27:50,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 07:27:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:51,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 2967 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-10-13 07:27:51,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:51,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-13 07:27:51,235 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-10-13 07:27:51,235 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:51,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847994619] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:51,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:51,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2024-10-13 07:27:51,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818331746] [2024-10-13 07:27:51,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:51,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 07:27:51,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:51,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 07:27:51,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-10-13 07:27:51,237 INFO L87 Difference]: Start difference. First operand 185 states and 237 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 6 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29) [2024-10-13 07:27:51,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:51,730 INFO L93 Difference]: Finished difference Result 321 states and 415 transitions. [2024-10-13 07:27:51,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 07:27:51,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 6 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29) Word has length 205 [2024-10-13 07:27:51,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:51,731 INFO L225 Difference]: With dead ends: 321 [2024-10-13 07:27:51,732 INFO L226 Difference]: Without dead ends: 185 [2024-10-13 07:27:51,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-10-13 07:27:51,732 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 28 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:51,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1042 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 07:27:51,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-10-13 07:27:51,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-10-13 07:27:51,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 119 states have (on average 1.1680672268907564) internal successors, (139), 120 states have internal predecessors, (139), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (50), 47 states have call predecessors, (50), 46 states have call successors, (50) [2024-10-13 07:27:51,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 236 transitions. [2024-10-13 07:27:51,743 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 236 transitions. Word has length 205 [2024-10-13 07:27:51,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:51,743 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 236 transitions. [2024-10-13 07:27:51,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 6 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29) [2024-10-13 07:27:51,743 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 236 transitions. [2024-10-13 07:27:51,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-10-13 07:27:51,744 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:51,744 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:51,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-13 07:27:51,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:51,945 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:51,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:51,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1180265128, now seen corresponding path program 1 times [2024-10-13 07:27:51,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:51,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788594469] [2024-10-13 07:27:51,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:51,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:27:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:27:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:27:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:55,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:27:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:27:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-13 07:27:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-13 07:27:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-13 07:27:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 07:27:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 07:27:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-13 07:27:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-13 07:27:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-13 07:27:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:27:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,719 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 23 proven. 30 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-13 07:27:56,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:56,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788594469] [2024-10-13 07:27:56,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788594469] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:56,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709989755] [2024-10-13 07:27:56,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:56,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:56,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:56,721 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) [2024-10-13 07:27:56,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 07:28:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:00,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 2972 conjuncts, 122 conjuncts are in the unsatisfiable core [2024-10-13 07:28:00,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:28:01,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 07:28:01,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-13 07:28:01,675 INFO L349 Elim1Store]: treesize reduction 37, result has 33.9 percent of original size [2024-10-13 07:28:01,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 35 [2024-10-13 07:28:01,798 INFO L349 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2024-10-13 07:28:01,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 53 treesize of output 47 [2024-10-13 07:28:01,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-13 07:28:01,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2024-10-13 07:28:02,772 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 153 proven. 8 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 07:28:02,772 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:28:03,722 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-10-13 07:28:03,722 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 118 treesize of output 113 [2024-10-13 07:28:13,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709989755] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:28:13,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 07:28:13,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 28] total 52 [2024-10-13 07:28:13,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828310903] [2024-10-13 07:28:13,084 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 07:28:13,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-10-13 07:28:13,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:28:13,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-10-13 07:28:13,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=4404, Unknown=10, NotChecked=0, Total=4692 [2024-10-13 07:28:13,087 INFO L87 Difference]: Start difference. First operand 185 states and 236 transitions. Second operand has 52 states, 45 states have (on average 3.888888888888889) internal successors, (175), 42 states have internal predecessors, (175), 21 states have call successors, (61), 11 states have call predecessors, (61), 14 states have return successors, (60), 20 states have call predecessors, (60), 21 states have call successors, (60) [2024-10-13 07:28:29,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:28:33,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:28:37,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]