./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_init_dynamic_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 02a1ef197fe295e0adddb84ae3aa2db56396688008aeca91e1ab4b161b42690c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 07:27:21,414 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 07:27:21,471 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-13 07:27:21,475 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 07:27:21,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 07:27:21,498 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 07:27:21,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 07:27:21,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 07:27:21,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 07:27:21,502 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 07:27:21,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 07:27:21,503 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 07:27:21,503 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 07:27:21,505 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 07:27:21,505 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 07:27:21,505 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 07:27:21,506 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 07:27:21,506 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 07:27:21,506 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 07:27:21,506 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 07:27:21,506 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 07:27:21,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 07:27:21,509 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 07:27:21,509 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 07:27:21,509 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 07:27:21,509 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 07:27:21,509 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 07:27:21,509 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 07:27:21,509 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 07:27:21,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:27:21,510 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 07:27:21,510 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 07:27:21,510 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 07:27:21,510 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 07:27:21,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 07:27:21,510 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 07:27:21,510 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 07:27:21,510 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 07:27:21,511 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 07:27:21,511 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02a1ef197fe295e0adddb84ae3aa2db56396688008aeca91e1ab4b161b42690c [2024-10-13 07:27:21,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 07:27:21,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 07:27:21,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 07:27:21,754 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 07:27:21,755 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 07:27:21,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2024-10-13 07:27:23,094 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 07:27:23,539 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 07:27:23,539 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2024-10-13 07:27:23,568 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f37c69da/0b5f8cee2a894356b0380addc4e16f9e/FLAGdbf856986 [2024-10-13 07:27:23,587 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f37c69da/0b5f8cee2a894356b0380addc4e16f9e [2024-10-13 07:27:23,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 07:27:23,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 07:27:23,595 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 07:27:23,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 07:27:23,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 07:27:23,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:27:23" (1/1) ... [2024-10-13 07:27:23,601 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@487a635a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:23, skipping insertion in model container [2024-10-13 07:27:23,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:27:23" (1/1) ... [2024-10-13 07:27:23,672 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 07:27:23,976 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2024-10-13 07:27:23,985 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2024-10-13 07:27:24,493 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,494 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,494 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,495 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,496 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,508 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,509 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,511 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,511 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,805 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,806 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:27:24,894 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 07:27:24,906 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2024-10-13 07:27:24,907 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2024-10-13 07:27:24,946 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,946 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,946 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,947 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,947 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,951 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,952 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,952 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,953 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,998 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:24,999 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:27:25,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7703-7714] [2024-10-13 07:27:25,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:27:25,197 INFO L204 MainTranslator]: Completed translation [2024-10-13 07:27:25,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:25 WrapperNode [2024-10-13 07:27:25,197 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 07:27:25,198 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 07:27:25,198 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 07:27:25,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 07:27:25,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:25" (1/1) ... [2024-10-13 07:27:25,267 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:25" (1/1) ... [2024-10-13 07:27:25,329 INFO L138 Inliner]: procedures = 678, calls = 1524, calls flagged for inlining = 52, calls inlined = 9, statements flattened = 761 [2024-10-13 07:27:25,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 07:27:25,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 07:27:25,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 07:27:25,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 07:27:25,340 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:25" (1/1) ... [2024-10-13 07:27:25,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:25" (1/1) ... [2024-10-13 07:27:25,346 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:25" (1/1) ... [2024-10-13 07:27:25,408 INFO L175 MemorySlicer]: Split 297 memory accesses to 5 slices as follows [2, 236, 46, 8, 5]. 79 percent of accesses are in the largest equivalence class. The 256 initializations are split as follows [2, 236, 11, 2, 5]. The 7 writes are split as follows [0, 0, 6, 1, 0]. [2024-10-13 07:27:25,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:25" (1/1) ... [2024-10-13 07:27:25,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:25" (1/1) ... [2024-10-13 07:27:25,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:25" (1/1) ... [2024-10-13 07:27:25,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:25" (1/1) ... [2024-10-13 07:27:25,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:25" (1/1) ... [2024-10-13 07:27:25,495 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:25" (1/1) ... [2024-10-13 07:27:25,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 07:27:25,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 07:27:25,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 07:27:25,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 07:27:25,510 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:25" (1/1) ... [2024-10-13 07:27:25,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:27:25,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:25,538 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 07:27:25,540 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 07:27:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-10-13 07:27:25,573 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-10-13 07:27:25,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 07:27:25,575 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-13 07:27:25,575 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-13 07:27:25,575 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-13 07:27:25,575 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-13 07:27:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-10-13 07:27:25,576 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-10-13 07:27:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 07:27:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 07:27:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 07:27:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 07:27:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 07:27:25,576 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-13 07:27:25,577 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-13 07:27:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 07:27:25,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 07:27:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 07:27:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 07:27:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 07:27:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 07:27:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 07:27:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-13 07:27:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-13 07:27:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 07:27:25,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 07:27:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-13 07:27:25,578 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-13 07:27:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-10-13 07:27:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-10-13 07:27:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-13 07:27:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-13 07:27:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-10-13 07:27:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-10-13 07:27:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-10-13 07:27:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-10-13 07:27:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 07:27:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 07:27:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 07:27:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 07:27:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 07:27:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 07:27:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-13 07:27:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-13 07:27:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-13 07:27:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-13 07:27:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-13 07:27:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-13 07:27:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-13 07:27:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-13 07:27:25,581 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-13 07:27:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-13 07:27:25,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-13 07:27:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 07:27:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 07:27:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 07:27:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 07:27:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 07:27:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-10-13 07:27:25,582 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-10-13 07:27:25,582 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-10-13 07:27:25,583 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-10-13 07:27:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 07:27:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 07:27:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 07:27:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 07:27:25,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 07:27:25,838 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 07:27:25,840 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 07:27:26,495 INFO L? ?]: Removed 150 outVars from TransFormulas that were not future-live. [2024-10-13 07:27:26,496 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 07:27:26,569 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 07:27:26,570 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-13 07:27:26,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:27:26 BoogieIcfgContainer [2024-10-13 07:27:26,570 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 07:27:26,572 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 07:27:26,572 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 07:27:26,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 07:27:26,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:27:23" (1/3) ... [2024-10-13 07:27:26,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7205feb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:27:26, skipping insertion in model container [2024-10-13 07:27:26,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:27:25" (2/3) ... [2024-10-13 07:27:26,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7205feb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:27:26, skipping insertion in model container [2024-10-13 07:27:26,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:27:26" (3/3) ... [2024-10-13 07:27:26,577 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness.i [2024-10-13 07:27:26,591 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 07:27:26,592 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 07:27:26,641 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 07:27:26,647 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;@2f950bee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 07:27:26,647 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 07:27:26,651 INFO L276 IsEmpty]: Start isEmpty. Operand has 199 states, 121 states have (on average 1.28099173553719) internal successors, (155), 121 states have internal predecessors, (155), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-10-13 07:27:26,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-13 07:27:26,662 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:26,663 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:26,663 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:26,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:26,668 INFO L85 PathProgramCache]: Analyzing trace with hash -955814862, now seen corresponding path program 1 times [2024-10-13 07:27:26,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:26,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049788859] [2024-10-13 07:27:26,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:26,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:27:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 07:27:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 07:27:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:27:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:27:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:27:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:27:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 07:27:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-13 07:27:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-13 07:27:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 07:27:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 07:27:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:27,451 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-10-13 07:27:27,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:27,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049788859] [2024-10-13 07:27:27,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049788859] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:27,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:27:27,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 07:27:27,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356531779] [2024-10-13 07:27:27,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:27,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 07:27:27,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:27,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 07:27:27,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 07:27:27,484 INFO L87 Difference]: Start difference. First operand has 199 states, 121 states have (on average 1.28099173553719) internal successors, (155), 121 states have internal predecessors, (155), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-13 07:27:28,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:28,160 INFO L93 Difference]: Finished difference Result 397 states and 600 transitions. [2024-10-13 07:27:28,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 07:27:28,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 128 [2024-10-13 07:27:28,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:28,175 INFO L225 Difference]: With dead ends: 397 [2024-10-13 07:27:28,175 INFO L226 Difference]: Without dead ends: 218 [2024-10-13 07:27:28,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 07:27:28,186 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 67 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:28,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 400 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 07:27:28,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-10-13 07:27:28,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 195. [2024-10-13 07:27:28,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 116 states have (on average 1.2413793103448276) internal successors, (144), 118 states have internal predecessors, (144), 62 states have call successors, (62), 16 states have call predecessors, (62), 16 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-13 07:27:28,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 266 transitions. [2024-10-13 07:27:28,248 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 266 transitions. Word has length 128 [2024-10-13 07:27:28,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:28,250 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 266 transitions. [2024-10-13 07:27:28,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-13 07:27:28,250 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 266 transitions. [2024-10-13 07:27:28,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-13 07:27:28,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:28,254 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:28,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 07:27:28,254 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:28,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:28,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1820788207, now seen corresponding path program 1 times [2024-10-13 07:27:28,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:28,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297123476] [2024-10-13 07:27:28,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:28,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:27:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 07:27:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:28,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 07:27:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:27:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:27:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:27:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:27:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 07:27:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:27:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-13 07:27:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 07:27:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-13 07:27:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 07:27:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-13 07:27:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,474 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-10-13 07:27:29,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:29,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297123476] [2024-10-13 07:27:29,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297123476] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:29,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588640628] [2024-10-13 07:27:29,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:29,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:29,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:29,478 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 07:27:29,480 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 07:27:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:29,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 2406 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-13 07:27:29,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:30,119 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2024-10-13 07:27:30,120 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:27:30,328 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-10-13 07:27:30,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588640628] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:30,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-13 07:27:30,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 9] total 18 [2024-10-13 07:27:30,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831508238] [2024-10-13 07:27:30,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:30,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:27:30,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:30,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:27:30,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2024-10-13 07:27:30,331 INFO L87 Difference]: Start difference. First operand 195 states and 266 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-13 07:27:30,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:30,592 INFO L93 Difference]: Finished difference Result 203 states and 274 transitions. [2024-10-13 07:27:30,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 07:27:30,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 158 [2024-10-13 07:27:30,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:30,595 INFO L225 Difference]: With dead ends: 203 [2024-10-13 07:27:30,595 INFO L226 Difference]: Without dead ends: 201 [2024-10-13 07:27:30,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-10-13 07:27:30,597 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 3 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:30,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 970 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 07:27:30,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-10-13 07:27:30,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 200. [2024-10-13 07:27:30,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 119 states have (on average 1.2352941176470589) internal successors, (147), 122 states have internal predecessors, (147), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-13 07:27:30,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 271 transitions. [2024-10-13 07:27:30,612 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 271 transitions. Word has length 158 [2024-10-13 07:27:30,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:30,613 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 271 transitions. [2024-10-13 07:27:30,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-13 07:27:30,613 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 271 transitions. [2024-10-13 07:27:30,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-13 07:27:30,615 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:30,615 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:30,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 07:27:30,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:30,820 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:30,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:30,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1818941165, now seen corresponding path program 1 times [2024-10-13 07:27:30,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:30,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430443332] [2024-10-13 07:27:30,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:30,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:31,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:27:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 07:27:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 07:27:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:27:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:27:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:27:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:27:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 07:27:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:27:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-13 07:27:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 07:27:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-13 07:27:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 07:27:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-13 07:27:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,423 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-10-13 07:27:31,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:31,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430443332] [2024-10-13 07:27:31,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430443332] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:31,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391442929] [2024-10-13 07:27:31,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:31,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:31,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:31,426 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 07:27:31,428 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 07:27:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:31,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 2411 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-13 07:27:31,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:31,873 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-10-13 07:27:31,873 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:31,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391442929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:31,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:31,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2024-10-13 07:27:31,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529095052] [2024-10-13 07:27:31,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:31,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 07:27:31,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:31,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 07:27:31,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-13 07:27:31,876 INFO L87 Difference]: Start difference. First operand 200 states and 271 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-10-13 07:27:32,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:32,080 INFO L93 Difference]: Finished difference Result 368 states and 493 transitions. [2024-10-13 07:27:32,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 07:27:32,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 158 [2024-10-13 07:27:32,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:32,083 INFO L225 Difference]: With dead ends: 368 [2024-10-13 07:27:32,083 INFO L226 Difference]: Without dead ends: 200 [2024-10-13 07:27:32,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-13 07:27:32,084 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 4 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:32,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1208 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 07:27:32,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-10-13 07:27:32,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2024-10-13 07:27:32,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 119 states have (on average 1.226890756302521) internal successors, (146), 122 states have internal predecessors, (146), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-13 07:27:32,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 270 transitions. [2024-10-13 07:27:32,098 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 270 transitions. Word has length 158 [2024-10-13 07:27:32,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:32,099 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 270 transitions. [2024-10-13 07:27:32,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-10-13 07:27:32,099 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 270 transitions. [2024-10-13 07:27:32,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-13 07:27:32,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:32,101 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:32,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 07:27:32,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-13 07:27:32,306 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:32,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:32,307 INFO L85 PathProgramCache]: Analyzing trace with hash 2038130755, now seen corresponding path program 1 times [2024-10-13 07:27:32,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:32,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901158661] [2024-10-13 07:27:32,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:32,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:32,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:27:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 07:27:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 07:27:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:27:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:27:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:27:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:27:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 07:27:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:27:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:32,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 07:27:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 07:27:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-13 07:27:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-13 07:27:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-13 07:27:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,064 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-10-13 07:27:33,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:33,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901158661] [2024-10-13 07:27:33,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901158661] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:33,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573613832] [2024-10-13 07:27:33,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:33,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:33,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:33,068 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 07:27:33,069 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 07:27:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:33,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 2427 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 07:27:33,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:33,500 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2024-10-13 07:27:33,500 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:27:33,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573613832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:27:33,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:27:33,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-10-13 07:27:33,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440588969] [2024-10-13 07:27:33,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:27:33,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 07:27:33,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:33,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 07:27:33,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-13 07:27:33,502 INFO L87 Difference]: Start difference. First operand 200 states and 270 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-10-13 07:27:33,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:33,704 INFO L93 Difference]: Finished difference Result 365 states and 491 transitions. [2024-10-13 07:27:33,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 07:27:33,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 162 [2024-10-13 07:27:33,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:33,707 INFO L225 Difference]: With dead ends: 365 [2024-10-13 07:27:33,707 INFO L226 Difference]: Without dead ends: 201 [2024-10-13 07:27:33,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-13 07:27:33,709 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 0 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:33,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 494 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 07:27:33,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-10-13 07:27:33,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2024-10-13 07:27:33,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 120 states have (on average 1.225) internal successors, (147), 123 states have internal predecessors, (147), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-13 07:27:33,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 271 transitions. [2024-10-13 07:27:33,723 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 271 transitions. Word has length 162 [2024-10-13 07:27:33,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:33,723 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 271 transitions. [2024-10-13 07:27:33,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-10-13 07:27:33,724 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 271 transitions. [2024-10-13 07:27:33,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-13 07:27:33,725 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:33,725 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:33,743 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 07:27:33,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:33,926 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:33,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:33,927 INFO L85 PathProgramCache]: Analyzing trace with hash -533488821, now seen corresponding path program 1 times [2024-10-13 07:27:33,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:33,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484815126] [2024-10-13 07:27:33,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:33,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:27:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 07:27:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 07:27:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:27:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:27:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:27:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:27:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 07:27:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:27:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-13 07:27:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 07:27:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 07:27:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:27:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:34,750 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 1 [2024-10-13 07:27:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 07:27:34,764 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 1 [2024-10-13 07:27:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:34,775 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-10-13 07:27:34,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:34,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484815126] [2024-10-13 07:27:34,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484815126] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:34,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084054213] [2024-10-13 07:27:34,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:34,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:34,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:34,778 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 07:27:34,779 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 07:27:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:35,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 2465 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-13 07:27:35,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:35,280 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 149 proven. 1 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-10-13 07:27:35,280 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:27:35,504 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-10-13 07:27:35,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084054213] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 07:27:35,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 07:27:35,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 19 [2024-10-13 07:27:35,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193120053] [2024-10-13 07:27:35,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 07:27:35,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-13 07:27:35,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:35,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-13 07:27:35,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-10-13 07:27:35,507 INFO L87 Difference]: Start difference. First operand 201 states and 271 transitions. Second operand has 19 states, 17 states have (on average 5.235294117647059) internal successors, (89), 16 states have internal predecessors, (89), 6 states have call successors, (49), 5 states have call predecessors, (49), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2024-10-13 07:27:37,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:37,412 INFO L93 Difference]: Finished difference Result 395 states and 531 transitions. [2024-10-13 07:27:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 07:27:37,413 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.235294117647059) internal successors, (89), 16 states have internal predecessors, (89), 6 states have call successors, (49), 5 states have call predecessors, (49), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) Word has length 164 [2024-10-13 07:27:37,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:37,417 INFO L225 Difference]: With dead ends: 395 [2024-10-13 07:27:37,417 INFO L226 Difference]: Without dead ends: 225 [2024-10-13 07:27:37,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=666, Unknown=0, NotChecked=0, Total=812 [2024-10-13 07:27:37,419 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 246 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:37,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1120 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-13 07:27:37,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-10-13 07:27:37,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 202. [2024-10-13 07:27:37,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 121 states have (on average 1.2231404958677685) internal successors, (148), 124 states have internal predecessors, (148), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-13 07:27:37,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 272 transitions. [2024-10-13 07:27:37,433 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 272 transitions. Word has length 164 [2024-10-13 07:27:37,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:37,434 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 272 transitions. [2024-10-13 07:27:37,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.235294117647059) internal successors, (89), 16 states have internal predecessors, (89), 6 states have call successors, (49), 5 states have call predecessors, (49), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2024-10-13 07:27:37,434 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 272 transitions. [2024-10-13 07:27:37,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-13 07:27:37,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:37,435 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:37,453 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 07:27:37,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:37,637 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:37,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:37,637 INFO L85 PathProgramCache]: Analyzing trace with hash -932958653, now seen corresponding path program 2 times [2024-10-13 07:27:37,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:37,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668810625] [2024-10-13 07:27:37,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:37,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:27:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 07:27:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 07:27:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:27:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:27:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:27:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:27:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 07:27:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:27:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 07:27:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 07:27:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-13 07:27:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 07:27:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-13 07:27:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:38,643 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2024-10-13 07:27:38,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:38,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668810625] [2024-10-13 07:27:38,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668810625] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:38,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087007970] [2024-10-13 07:27:38,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 07:27:38,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:38,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:38,646 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 07:27:38,647 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 07:27:39,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 07:27:39,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:27:39,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-13 07:27:39,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:39,387 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-10-13 07:27:39,388 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:27:39,755 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2024-10-13 07:27:39,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087007970] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 07:27:39,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 07:27:39,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 9] total 24 [2024-10-13 07:27:39,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068519384] [2024-10-13 07:27:39,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 07:27:39,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-13 07:27:39,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:39,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-13 07:27:39,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-10-13 07:27:39,758 INFO L87 Difference]: Start difference. First operand 202 states and 272 transitions. Second operand has 24 states, 22 states have (on average 3.9545454545454546) internal successors, (87), 21 states have internal predecessors, (87), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-13 07:27:42,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:42,035 INFO L93 Difference]: Finished difference Result 397 states and 533 transitions. [2024-10-13 07:27:42,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 07:27:42,036 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 3.9545454545454546) internal successors, (87), 21 states have internal predecessors, (87), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) Word has length 166 [2024-10-13 07:27:42,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:42,038 INFO L225 Difference]: With dead ends: 397 [2024-10-13 07:27:42,038 INFO L226 Difference]: Without dead ends: 226 [2024-10-13 07:27:42,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=178, Invalid=1012, Unknown=0, NotChecked=0, Total=1190 [2024-10-13 07:27:42,040 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 248 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:42,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 1449 Invalid, 2239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 2025 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-13 07:27:42,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-10-13 07:27:42,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 203. [2024-10-13 07:27:42,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 122 states have (on average 1.221311475409836) internal successors, (149), 125 states have internal predecessors, (149), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-13 07:27:42,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 273 transitions. [2024-10-13 07:27:42,053 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 273 transitions. Word has length 166 [2024-10-13 07:27:42,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:42,054 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 273 transitions. [2024-10-13 07:27:42,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 3.9545454545454546) internal successors, (87), 21 states have internal predecessors, (87), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-13 07:27:42,054 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 273 transitions. [2024-10-13 07:27:42,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-13 07:27:42,055 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:42,055 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:42,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 07:27:42,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:42,260 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:42,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:42,260 INFO L85 PathProgramCache]: Analyzing trace with hash -282910901, now seen corresponding path program 3 times [2024-10-13 07:27:42,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:42,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180778457] [2024-10-13 07:27:42,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:42,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [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 33 [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 37 [2024-10-13 07:27:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:27:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 07:27:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 07:27:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:27:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:27:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:27:42,943 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 81 [2024-10-13 07:27:42,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 07:27:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:42,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:27:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 07:27:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-13 07:27:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 07:27:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-13 07:27:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:27:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:43,365 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-10-13 07:27:43,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:43,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180778457] [2024-10-13 07:27:43,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180778457] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:43,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710463466] [2024-10-13 07:27:43,367 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 07:27:43,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:43,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:43,368 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 07:27:43,370 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 07:27:46,689 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-13 07:27:46,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:27:46,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 2056 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-13 07:27:46,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:46,828 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2024-10-13 07:27:46,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:27:47,218 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-10-13 07:27:47,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710463466] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 07:27:47,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 07:27:47,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 25 [2024-10-13 07:27:47,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486905209] [2024-10-13 07:27:47,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 07:27:47,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-13 07:27:47,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:47,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-13 07:27:47,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2024-10-13 07:27:47,221 INFO L87 Difference]: Start difference. First operand 203 states and 273 transitions. Second operand has 25 states, 22 states have (on average 3.909090909090909) internal successors, (86), 22 states have internal predecessors, (86), 8 states have call successors, (47), 5 states have call predecessors, (47), 6 states have return successors, (42), 7 states have call predecessors, (42), 8 states have call successors, (42) [2024-10-13 07:27:49,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:49,731 INFO L93 Difference]: Finished difference Result 399 states and 535 transitions. [2024-10-13 07:27:49,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-13 07:27:49,732 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 3.909090909090909) internal successors, (86), 22 states have internal predecessors, (86), 8 states have call successors, (47), 5 states have call predecessors, (47), 6 states have return successors, (42), 7 states have call predecessors, (42), 8 states have call successors, (42) Word has length 168 [2024-10-13 07:27:49,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:49,735 INFO L225 Difference]: With dead ends: 399 [2024-10-13 07:27:49,735 INFO L226 Difference]: Without dead ends: 227 [2024-10-13 07:27:49,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=1137, Unknown=0, NotChecked=0, Total=1332 [2024-10-13 07:27:49,737 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 189 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:49,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 1277 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-13 07:27:49,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-10-13 07:27:49,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 204. [2024-10-13 07:27:49,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 123 states have (on average 1.2195121951219512) internal successors, (150), 126 states have internal predecessors, (150), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-13 07:27:49,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 274 transitions. [2024-10-13 07:27:49,751 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 274 transitions. Word has length 168 [2024-10-13 07:27:49,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:49,752 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 274 transitions. [2024-10-13 07:27:49,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 3.909090909090909) internal successors, (86), 22 states have internal predecessors, (86), 8 states have call successors, (47), 5 states have call predecessors, (47), 6 states have return successors, (42), 7 states have call predecessors, (42), 8 states have call successors, (42) [2024-10-13 07:27:49,752 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 274 transitions. [2024-10-13 07:27:49,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-13 07:27:49,754 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:49,754 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 9, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:49,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 07:27:49,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:49,959 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:49,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:49,960 INFO L85 PathProgramCache]: Analyzing trace with hash -429247421, now seen corresponding path program 4 times [2024-10-13 07:27:49,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:49,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837624642] [2024-10-13 07:27:49,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:49,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:50,082 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 1 [2024-10-13 07:27:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:50,543 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 41 [2024-10-13 07:27:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 07:27:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 07:27:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:27:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:27:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:27:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:27:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 07:27:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:27:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-13 07:27:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:27:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-13 07:27:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-13 07:27:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:50,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:51,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:51,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 07:27:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:51,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:51,030 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2024-10-13 07:27:51,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:51,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837624642] [2024-10-13 07:27:51,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837624642] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:51,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722655350] [2024-10-13 07:27:51,031 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 07:27:51,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:51,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:51,033 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 07:27:51,034 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 07:27:51,582 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 07:27:51,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:27:51,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 2579 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-13 07:27:51,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:51,769 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 40 proven. 10 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2024-10-13 07:27:51,769 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:27:52,168 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 33 proven. 10 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2024-10-13 07:27:52,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722655350] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 07:27:52,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 07:27:52,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 28 [2024-10-13 07:27:52,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981490844] [2024-10-13 07:27:52,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 07:27:52,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-13 07:27:52,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:52,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-13 07:27:52,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2024-10-13 07:27:52,171 INFO L87 Difference]: Start difference. First operand 204 states and 274 transitions. Second operand has 28 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 25 states have internal predecessors, (90), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-13 07:27:55,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:27:55,985 INFO L93 Difference]: Finished difference Result 401 states and 537 transitions. [2024-10-13 07:27:55,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-13 07:27:55,986 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 25 states have internal predecessors, (90), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) Word has length 170 [2024-10-13 07:27:55,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:27:55,988 INFO L225 Difference]: With dead ends: 401 [2024-10-13 07:27:55,988 INFO L226 Difference]: Without dead ends: 228 [2024-10-13 07:27:55,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=231, Invalid=1409, Unknown=0, NotChecked=0, Total=1640 [2024-10-13 07:27:55,990 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 180 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 3108 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 2147 SdHoareTripleChecker+Invalid, 3251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 3108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-13 07:27:55,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 2147 Invalid, 3251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 3108 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-13 07:27:55,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-10-13 07:27:56,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 205. [2024-10-13 07:27:56,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 124 states have (on average 1.217741935483871) internal successors, (151), 127 states have internal predecessors, (151), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-13 07:27:56,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 275 transitions. [2024-10-13 07:27:56,007 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 275 transitions. Word has length 170 [2024-10-13 07:27:56,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:27:56,007 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 275 transitions. [2024-10-13 07:27:56,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 25 states have internal predecessors, (90), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-13 07:27:56,008 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 275 transitions. [2024-10-13 07:27:56,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-13 07:27:56,009 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:27:56,009 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:27:56,030 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 07:27:56,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:56,213 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:27:56,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:27:56,213 INFO L85 PathProgramCache]: Analyzing trace with hash 868770635, now seen corresponding path program 5 times [2024-10-13 07:27:56,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:27:56,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256796045] [2024-10-13 07:27:56,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:27:56,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:27:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:27:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:27:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:27:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:27:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:27:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:27:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:27:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:27:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:27:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:27:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 07:27:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 07:27:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:27:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:27:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:27:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:27:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 07:27:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:56,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:27:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:57,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:57,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:57,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 07:27:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:57,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-13 07:27:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:57,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-13 07:27:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:57,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 07:27:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:57,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:57,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:57,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-13 07:27:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:57,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:27:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:27:57,347 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-10-13 07:27:57,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:27:57,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256796045] [2024-10-13 07:27:57,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256796045] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:27:57,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436740284] [2024-10-13 07:27:57,347 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 07:27:57,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:27:57,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:27:57,350 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 07:27:57,355 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 07:27:57,903 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-10-13 07:27:57,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:27:57,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-13 07:27:57,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:27:58,119 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 181 proven. 15 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-10-13 07:27:58,119 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:27:58,591 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-10-13 07:27:58,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436740284] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 07:27:58,591 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 07:27:58,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 31 [2024-10-13 07:27:58,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340646516] [2024-10-13 07:27:58,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 07:27:58,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-13 07:27:58,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:27:58,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-13 07:27:58,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=808, Unknown=0, NotChecked=0, Total=930 [2024-10-13 07:27:58,594 INFO L87 Difference]: Start difference. First operand 205 states and 275 transitions. Second operand has 31 states, 29 states have (on average 3.4827586206896552) internal successors, (101), 28 states have internal predecessors, (101), 6 states have call successors, (49), 5 states have call predecessors, (49), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2024-10-13 07:28:01,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:28:01,346 INFO L93 Difference]: Finished difference Result 403 states and 539 transitions. [2024-10-13 07:28:01,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-13 07:28:01,347 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 29 states have (on average 3.4827586206896552) internal successors, (101), 28 states have internal predecessors, (101), 6 states have call successors, (49), 5 states have call predecessors, (49), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) Word has length 172 [2024-10-13 07:28:01,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:28:01,349 INFO L225 Difference]: With dead ends: 403 [2024-10-13 07:28:01,349 INFO L226 Difference]: Without dead ends: 229 [2024-10-13 07:28:01,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=265, Invalid=1715, Unknown=0, NotChecked=0, Total=1980 [2024-10-13 07:28:01,351 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 254 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-13 07:28:01,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 1558 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-13 07:28:01,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-10-13 07:28:01,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 206. [2024-10-13 07:28:01,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 125 states have (on average 1.216) internal successors, (152), 128 states have internal predecessors, (152), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-13 07:28:01,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 276 transitions. [2024-10-13 07:28:01,363 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 276 transitions. Word has length 172 [2024-10-13 07:28:01,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:28:01,363 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 276 transitions. [2024-10-13 07:28:01,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 29 states have (on average 3.4827586206896552) internal successors, (101), 28 states have internal predecessors, (101), 6 states have call successors, (49), 5 states have call predecessors, (49), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2024-10-13 07:28:01,364 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 276 transitions. [2024-10-13 07:28:01,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-10-13 07:28:01,365 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:28:01,365 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:28:01,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-13 07:28:01,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-13 07:28:01,566 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:28:01,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:28:01,566 INFO L85 PathProgramCache]: Analyzing trace with hash 131955267, now seen corresponding path program 6 times [2024-10-13 07:28:01,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:28:01,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003931846] [2024-10-13 07:28:01,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:01,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:28:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:28:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:28:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:28:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:28:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:28:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:28:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:28:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:28:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:28:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 07:28:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 07:28:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:28:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:28:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:28:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:28:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 07:28:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:28:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 07:28:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 07:28:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:28:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-13 07:28:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 07:28:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:02,739 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-10-13 07:28:02,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:28:02,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003931846] [2024-10-13 07:28:02,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003931846] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:28:02,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267579613] [2024-10-13 07:28:02,739 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-13 07:28:02,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:28:02,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:28:02,741 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:28:02,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 07:28:05,197 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-10-13 07:28:05,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:28:05,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 2219 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-13 07:28:05,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:28:05,507 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2024-10-13 07:28:05,508 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:28:05,977 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 57 proven. 21 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-10-13 07:28:05,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267579613] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 07:28:05,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 07:28:05,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 34 [2024-10-13 07:28:05,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162650187] [2024-10-13 07:28:05,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 07:28:05,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-13 07:28:05,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:28:05,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-13 07:28:05,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=981, Unknown=0, NotChecked=0, Total=1122 [2024-10-13 07:28:05,979 INFO L87 Difference]: Start difference. First operand 206 states and 276 transitions. Second operand has 34 states, 32 states have (on average 3.0) internal successors, (96), 31 states have internal predecessors, (96), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-13 07:28:09,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:28:09,488 INFO L93 Difference]: Finished difference Result 405 states and 541 transitions. [2024-10-13 07:28:09,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 07:28:09,489 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 3.0) internal successors, (96), 31 states have internal predecessors, (96), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) Word has length 174 [2024-10-13 07:28:09,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:28:09,490 INFO L225 Difference]: With dead ends: 405 [2024-10-13 07:28:09,490 INFO L226 Difference]: Without dead ends: 230 [2024-10-13 07:28:09,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=301, Invalid=2051, Unknown=0, NotChecked=0, Total=2352 [2024-10-13 07:28:09,492 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 255 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 3053 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 3266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 3053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:28:09,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 2099 Invalid, 3266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 3053 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-13 07:28:09,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-10-13 07:28:09,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 207. [2024-10-13 07:28:09,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 126 states have (on average 1.2142857142857142) internal successors, (153), 129 states have internal predecessors, (153), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-13 07:28:09,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 277 transitions. [2024-10-13 07:28:09,502 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 277 transitions. Word has length 174 [2024-10-13 07:28:09,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:28:09,502 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 277 transitions. [2024-10-13 07:28:09,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 3.0) internal successors, (96), 31 states have internal predecessors, (96), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-13 07:28:09,503 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 277 transitions. [2024-10-13 07:28:09,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-13 07:28:09,503 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:28:09,504 INFO L215 NwaCegarLoop]: trace histogram [14, 12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:28:09,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-13 07:28:09,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-13 07:28:09,708 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:28:09,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:28:09,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1985177419, now seen corresponding path program 7 times [2024-10-13 07:28:09,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:28:09,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361464265] [2024-10-13 07:28:09,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:09,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:28:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:28:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:28:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:28:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:28:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:28:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:28:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:28:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:28:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:28:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 07:28:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 07:28:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:28:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:28:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:28:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:28:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 07:28:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:28:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 07:28:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-13 07:28:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 07:28:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:28:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-13 07:28:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:10,943 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-10-13 07:28:10,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:28:10,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361464265] [2024-10-13 07:28:10,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361464265] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:28:10,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815682573] [2024-10-13 07:28:10,944 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-13 07:28:10,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:28:10,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:28:10,945 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:28:10,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-13 07:28:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:12,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 2693 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-13 07:28:12,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:28:12,399 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 209 proven. 28 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-10-13 07:28:12,399 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:28:12,917 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-10-13 07:28:12,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815682573] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 07:28:12,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 07:28:12,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 14] total 37 [2024-10-13 07:28:12,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713225269] [2024-10-13 07:28:12,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 07:28:12,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-10-13 07:28:12,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:28:12,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-10-13 07:28:12,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=1171, Unknown=0, NotChecked=0, Total=1332 [2024-10-13 07:28:12,920 INFO L87 Difference]: Start difference. First operand 207 states and 277 transitions. Second operand has 37 states, 35 states have (on average 3.057142857142857) internal successors, (107), 34 states have internal predecessors, (107), 6 states have call successors, (49), 5 states have call predecessors, (49), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2024-10-13 07:28:16,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:28:16,329 INFO L93 Difference]: Finished difference Result 407 states and 543 transitions. [2024-10-13 07:28:16,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-13 07:28:16,329 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 3.057142857142857) internal successors, (107), 34 states have internal predecessors, (107), 6 states have call successors, (49), 5 states have call predecessors, (49), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) Word has length 176 [2024-10-13 07:28:16,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:28:16,331 INFO L225 Difference]: With dead ends: 407 [2024-10-13 07:28:16,331 INFO L226 Difference]: Without dead ends: 231 [2024-10-13 07:28:16,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=339, Invalid=2417, Unknown=0, NotChecked=0, Total=2756 [2024-10-13 07:28:16,332 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 184 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 2751 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 2896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 2751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-13 07:28:16,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 1824 Invalid, 2896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 2751 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-13 07:28:16,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-10-13 07:28:16,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 208. [2024-10-13 07:28:16,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 127 states have (on average 1.2125984251968505) internal successors, (154), 130 states have internal predecessors, (154), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-13 07:28:16,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 278 transitions. [2024-10-13 07:28:16,343 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 278 transitions. Word has length 176 [2024-10-13 07:28:16,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:28:16,343 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 278 transitions. [2024-10-13 07:28:16,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 3.057142857142857) internal successors, (107), 34 states have internal predecessors, (107), 6 states have call successors, (49), 5 states have call predecessors, (49), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2024-10-13 07:28:16,344 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 278 transitions. [2024-10-13 07:28:16,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-13 07:28:16,344 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:28:16,344 INFO L215 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:28:16,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-13 07:28:16,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-13 07:28:16,549 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:28:16,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:28:16,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1024327747, now seen corresponding path program 8 times [2024-10-13 07:28:16,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:28:16,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044393411] [2024-10-13 07:28:16,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:16,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:28:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:28:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:28:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:28:17,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:28:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:28:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:28:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:28:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:28:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:28:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 07:28:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 07:28:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:28:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:28:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:28:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:28:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 07:28:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:28:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-13 07:28:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 07:28:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-13 07:28:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-13 07:28:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-13 07:28:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:17,925 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-10-13 07:28:17,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:28:17,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044393411] [2024-10-13 07:28:17,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044393411] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:28:17,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876194178] [2024-10-13 07:28:17,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 07:28:17,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:28:17,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:28:17,927 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:28:17,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-13 07:28:18,745 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 07:28:18,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:28:18,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 2731 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-13 07:28:18,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:28:19,081 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 96 proven. 36 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2024-10-13 07:28:19,081 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:28:19,739 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 89 proven. 36 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-10-13 07:28:19,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876194178] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 07:28:19,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 07:28:19,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 15] total 40 [2024-10-13 07:28:19,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693861042] [2024-10-13 07:28:19,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 07:28:19,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-10-13 07:28:19,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:28:19,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-10-13 07:28:19,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1378, Unknown=0, NotChecked=0, Total=1560 [2024-10-13 07:28:19,742 INFO L87 Difference]: Start difference. First operand 208 states and 278 transitions. Second operand has 40 states, 38 states have (on average 2.6842105263157894) internal successors, (102), 37 states have internal predecessors, (102), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-13 07:28:24,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:28:24,539 INFO L93 Difference]: Finished difference Result 409 states and 545 transitions. [2024-10-13 07:28:24,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 07:28:24,539 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 38 states have (on average 2.6842105263157894) internal successors, (102), 37 states have internal predecessors, (102), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) Word has length 178 [2024-10-13 07:28:24,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:28:24,541 INFO L225 Difference]: With dead ends: 409 [2024-10-13 07:28:24,541 INFO L226 Difference]: Without dead ends: 232 [2024-10-13 07:28:24,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=379, Invalid=2813, Unknown=0, NotChecked=0, Total=3192 [2024-10-13 07:28:24,544 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 184 mSDsluCounter, 2539 mSDsCounter, 0 mSdLazyCounter, 4017 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 4160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 4017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-10-13 07:28:24,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 2694 Invalid, 4160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 4017 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-10-13 07:28:24,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-10-13 07:28:24,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 209. [2024-10-13 07:28:24,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 128 states have (on average 1.2109375) internal successors, (155), 131 states have internal predecessors, (155), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-13 07:28:24,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 279 transitions. [2024-10-13 07:28:24,555 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 279 transitions. Word has length 178 [2024-10-13 07:28:24,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:28:24,555 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 279 transitions. [2024-10-13 07:28:24,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 38 states have (on average 2.6842105263157894) internal successors, (102), 37 states have internal predecessors, (102), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-13 07:28:24,556 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 279 transitions. [2024-10-13 07:28:24,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-10-13 07:28:24,557 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:28:24,557 INFO L215 NwaCegarLoop]: trace histogram [18, 12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:28:24,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-13 07:28:24,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-13 07:28:24,761 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:28:24,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:28:24,762 INFO L85 PathProgramCache]: Analyzing trace with hash -487314613, now seen corresponding path program 9 times [2024-10-13 07:28:24,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:28:24,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719038678] [2024-10-13 07:28:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:24,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:28:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:28:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:28:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:28:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:28:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:28:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:28:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:28:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:28:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:28:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 07:28:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 07:28:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:28:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:28:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:28:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:28:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 07:28:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:28:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:25,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:26,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:26,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:28:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:26,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-13 07:28:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:26,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-13 07:28:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:26,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-13 07:28:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:26,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:26,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:26,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-13 07:28:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:26,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:26,135 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-10-13 07:28:26,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:28:26,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719038678] [2024-10-13 07:28:26,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719038678] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:28:26,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670432380] [2024-10-13 07:28:26,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 07:28:26,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:28:26,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:28:26,137 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:28:26,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-13 07:28:31,538 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-13 07:28:31,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:28:31,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 2288 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-13 07:28:31,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:28:31,880 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 115 proven. 45 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2024-10-13 07:28:31,881 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:28:32,515 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 108 proven. 45 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-10-13 07:28:32,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670432380] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 07:28:32,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 07:28:32,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16, 16] total 43 [2024-10-13 07:28:32,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15470047] [2024-10-13 07:28:32,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 07:28:32,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-10-13 07:28:32,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:28:32,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-10-13 07:28:32,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=1602, Unknown=0, NotChecked=0, Total=1806 [2024-10-13 07:28:32,517 INFO L87 Difference]: Start difference. First operand 209 states and 279 transitions. Second operand has 43 states, 41 states have (on average 2.5609756097560976) internal successors, (105), 40 states have internal predecessors, (105), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-13 07:28:37,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:28:37,760 INFO L93 Difference]: Finished difference Result 411 states and 547 transitions. [2024-10-13 07:28:37,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-13 07:28:37,761 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 41 states have (on average 2.5609756097560976) internal successors, (105), 40 states have internal predecessors, (105), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) Word has length 180 [2024-10-13 07:28:37,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:28:37,762 INFO L225 Difference]: With dead ends: 411 [2024-10-13 07:28:37,762 INFO L226 Difference]: Without dead ends: 233 [2024-10-13 07:28:37,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 849 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=421, Invalid=3239, Unknown=0, NotChecked=0, Total=3660 [2024-10-13 07:28:37,765 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 186 mSDsluCounter, 2977 mSDsCounter, 0 mSdLazyCounter, 4646 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 4790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 4646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-10-13 07:28:37,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 3132 Invalid, 4790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 4646 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-10-13 07:28:37,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-10-13 07:28:37,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 210. [2024-10-13 07:28:37,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 129 states have (on average 1.2093023255813953) internal successors, (156), 132 states have internal predecessors, (156), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-13 07:28:37,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 280 transitions. [2024-10-13 07:28:37,778 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 280 transitions. Word has length 180 [2024-10-13 07:28:37,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:28:37,778 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 280 transitions. [2024-10-13 07:28:37,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 41 states have (on average 2.5609756097560976) internal successors, (105), 40 states have internal predecessors, (105), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (41), 6 states have call predecessors, (41), 6 states have call successors, (41) [2024-10-13 07:28:37,779 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 280 transitions. [2024-10-13 07:28:37,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-10-13 07:28:37,779 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:28:37,779 INFO L215 NwaCegarLoop]: trace histogram [20, 12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:28:37,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-13 07:28:37,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-13 07:28:37,980 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:28:37,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:28:37,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1917568579, now seen corresponding path program 10 times [2024-10-13 07:28:37,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:28:37,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398510350] [2024-10-13 07:28:37,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:37,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:28:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:28:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:28:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:28:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:28:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:28:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:28:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:28:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:28:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:28:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 07:28:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 07:28:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:28:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:28:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:28:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:28:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 07:28:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:28:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:38,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:39,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:39,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-13 07:28:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:39,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-13 07:28:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:39,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 07:28:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:39,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 07:28:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:39,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:39,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:39,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-13 07:28:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:39,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:39,365 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 0 proven. 184 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-10-13 07:28:39,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:28:39,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398510350] [2024-10-13 07:28:39,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398510350] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:28:39,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420122529] [2024-10-13 07:28:39,365 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 07:28:39,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:28:39,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:28:39,367 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:28:39,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-13 07:28:41,330 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 07:28:41,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:28:41,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 2807 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-10-13 07:28:41,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:28:41,939 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 35 proven. 210 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-10-13 07:28:41,940 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:28:42,757 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 129 proven. 55 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-10-13 07:28:42,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420122529] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 07:28:42,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 07:28:42,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 27, 17] total 56 [2024-10-13 07:28:42,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080034322] [2024-10-13 07:28:42,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 07:28:42,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-10-13 07:28:42,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:28:42,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-10-13 07:28:42,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=2813, Unknown=0, NotChecked=0, Total=3080 [2024-10-13 07:28:42,760 INFO L87 Difference]: Start difference. First operand 210 states and 280 transitions. Second operand has 56 states, 54 states have (on average 2.2037037037037037) internal successors, (119), 53 states have internal predecessors, (119), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2024-10-13 07:28:48,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:28:48,302 INFO L93 Difference]: Finished difference Result 413 states and 549 transitions. [2024-10-13 07:28:48,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-13 07:28:48,303 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 54 states have (on average 2.2037037037037037) internal successors, (119), 53 states have internal predecessors, (119), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) Word has length 182 [2024-10-13 07:28:48,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:28:48,305 INFO L225 Difference]: With dead ends: 413 [2024-10-13 07:28:48,305 INFO L226 Difference]: Without dead ends: 234 [2024-10-13 07:28:48,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1404 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=515, Invalid=5035, Unknown=0, NotChecked=0, Total=5550 [2024-10-13 07:28:48,308 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 263 mSDsluCounter, 3359 mSDsCounter, 0 mSdLazyCounter, 5267 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 3514 SdHoareTripleChecker+Invalid, 5480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 5267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-10-13 07:28:48,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 3514 Invalid, 5480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 5267 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-10-13 07:28:48,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-10-13 07:28:48,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 211. [2024-10-13 07:28:48,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 130 states have (on average 1.2076923076923076) internal successors, (157), 133 states have internal predecessors, (157), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-13 07:28:48,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 281 transitions. [2024-10-13 07:28:48,319 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 281 transitions. Word has length 182 [2024-10-13 07:28:48,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:28:48,320 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 281 transitions. [2024-10-13 07:28:48,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 54 states have (on average 2.2037037037037037) internal successors, (119), 53 states have internal predecessors, (119), 6 states have call successors, (46), 5 states have call predecessors, (46), 6 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2024-10-13 07:28:48,320 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 281 transitions. [2024-10-13 07:28:48,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-10-13 07:28:48,321 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:28:48,321 INFO L215 NwaCegarLoop]: trace histogram [22, 12, 12, 12, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:28:48,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-13 07:28:48,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-13 07:28:48,526 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:28:48,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:28:48,526 INFO L85 PathProgramCache]: Analyzing trace with hash 165326667, now seen corresponding path program 11 times [2024-10-13 07:28:48,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:28:48,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950147976] [2024-10-13 07:28:48,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:48,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:28:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:28:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:28:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:28:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:28:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:28:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:28:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:28:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:28:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:28:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 07:28:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 07:28:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:28:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 07:28:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 07:28:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 07:28:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 07:28:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:28:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:49,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 07:28:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:28:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-13 07:28:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-13 07:28:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-13 07:28:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,230 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 0 proven. 218 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2024-10-13 07:28:50,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:28:50,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950147976] [2024-10-13 07:28:50,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950147976] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:28:50,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243795317] [2024-10-13 07:28:50,231 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 07:28:50,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:28:50,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:28:50,234 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:28:50,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process