./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_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 5218740bc18d67a03fb6ada79d678262e4837698e28e927d44dbd2d60e2f84aa --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:57:28,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:57:28,167 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 02:57:28,172 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:57:28,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:57:28,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:57:28,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:57:28,202 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:57:28,203 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:57:28,203 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:57:28,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:57:28,218 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:57:28,218 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:57:28,219 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:57:28,219 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:57:28,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:57:28,220 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:57:28,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:57:28,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:57:28,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:57:28,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:57:28,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:57:28,228 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:57:28,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:57:28,229 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:57:28,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:57:28,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:57:28,229 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:57:28,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:57:28,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:57:28,230 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:57:28,230 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:57:28,230 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:57:28,230 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:57:28,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:57:28,231 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:57:28,231 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:57:28,231 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:57:28,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:57:28,231 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5218740bc18d67a03fb6ada79d678262e4837698e28e927d44dbd2d60e2f84aa [2024-11-09 02:57:28,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:57:28,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:57:28,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:57:28,523 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:57:28,523 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:57:28,525 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i [2024-11-09 02:57:30,049 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:57:30,459 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:57:30,459 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i [2024-11-09 02:57:30,499 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7581cc2f/22d5f0cca5674386a42730e0d9f2194d/FLAG986cfe59a [2024-11-09 02:57:30,515 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7581cc2f/22d5f0cca5674386a42730e0d9f2194d [2024-11-09 02:57:30,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:57:30,519 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:57:30,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:57:30,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:57:30,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:57:30,528 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:57:30" (1/1) ... [2024-11-09 02:57:30,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d0b9ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:30, skipping insertion in model container [2024-11-09 02:57:30,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:57:30" (1/1) ... [2024-11-09 02:57:30,655 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:57:30,861 WARN L250 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_array_list_init_static_harness.i[4500,4513] [2024-11-09 02:57:30,868 WARN L250 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_array_list_init_static_harness.i[4560,4573] [2024-11-09 02:57:31,392 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,393 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,393 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,395 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,396 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,407 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,408 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,409 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,409 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,411 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,411 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,411 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,412 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,730 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,736 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:57:31,781 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:57:31,794 WARN L250 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_array_list_init_static_harness.i[4500,4513] [2024-11-09 02:57:31,799 WARN L250 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_array_list_init_static_harness.i[4560,4573] [2024-11-09 02:57:31,858 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,859 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,859 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,859 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,860 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,871 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,872 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,873 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,873 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,874 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,874 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,875 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,875 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,925 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,929 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:31,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:57:32,125 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:57:32,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:32 WrapperNode [2024-11-09 02:57:32,126 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:57:32,127 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:57:32,127 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:57:32,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:57:32,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:32" (1/1) ... [2024-11-09 02:57:32,240 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:32" (1/1) ... [2024-11-09 02:57:32,317 INFO L138 Inliner]: procedures = 670, calls = 1248, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 162 [2024-11-09 02:57:32,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:57:32,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:57:32,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:57:32,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:57:32,347 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:32" (1/1) ... [2024-11-09 02:57:32,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:32" (1/1) ... [2024-11-09 02:57:32,351 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:32" (1/1) ... [2024-11-09 02:57:32,392 INFO L175 MemorySlicer]: Split 45 memory accesses to 5 slices as follows [2, 5, 28, 6, 4]. 62 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 6, 0, 0]. The 7 writes are split as follows [0, 0, 5, 2, 0]. [2024-11-09 02:57:32,396 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:32" (1/1) ... [2024-11-09 02:57:32,397 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:32" (1/1) ... [2024-11-09 02:57:32,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:32" (1/1) ... [2024-11-09 02:57:32,420 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:32" (1/1) ... [2024-11-09 02:57:32,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:32" (1/1) ... [2024-11-09 02:57:32,434 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:32" (1/1) ... [2024-11-09 02:57:32,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:57:32,446 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:57:32,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:57:32,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:57:32,449 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:32" (1/1) ... [2024-11-09 02:57:32,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:57:32,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:57:32,493 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) [2024-11-09 02:57:32,500 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 [2024-11-09 02:57:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 02:57:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-09 02:57:32,549 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-09 02:57:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 02:57:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 02:57:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 02:57:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 02:57:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 02:57:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-09 02:57:32,551 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-09 02:57:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 02:57:32,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 02:57:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 02:57:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:57:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 02:57:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 02:57:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 02:57:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 02:57:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 02:57:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:57:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:57:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 02:57:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 02:57:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-09 02:57:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-09 02:57:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-09 02:57:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-09 02:57:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-09 02:57:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-09 02:57:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 02:57:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 02:57:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 02:57:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 02:57:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 02:57:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 02:57:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 02:57:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 02:57:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 02:57:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 02:57:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 02:57:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 02:57:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 02:57:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-09 02:57:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-09 02:57:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 02:57:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 02:57:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 02:57:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 02:57:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 02:57:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 02:57:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 02:57:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:57:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 02:57:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 02:57:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 02:57:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 02:57:32,847 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:57:32,852 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:57:33,137 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-11-09 02:57:33,137 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:57:33,152 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:57:33,152 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 02:57:33,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:57:33 BoogieIcfgContainer [2024-11-09 02:57:33,153 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:57:33,154 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:57:33,155 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:57:33,158 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:57:33,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:57:30" (1/3) ... [2024-11-09 02:57:33,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494dc15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:57:33, skipping insertion in model container [2024-11-09 02:57:33,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:32" (2/3) ... [2024-11-09 02:57:33,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494dc15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:57:33, skipping insertion in model container [2024-11-09 02:57:33,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:57:33" (3/3) ... [2024-11-09 02:57:33,161 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_init_static_harness.i [2024-11-09 02:57:33,174 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:57:33,174 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 02:57:33,231 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:57:33,239 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;@5b21eb69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:57:33,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 02:57:33,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 68 states have (on average 1.161764705882353) internal successors, (79), 69 states have internal predecessors, (79), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-09 02:57:33,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 02:57:33,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:57:33,257 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-11-09 02:57:33,258 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:57:33,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:57:33,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1380798734, now seen corresponding path program 1 times [2024-11-09 02:57:33,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:57:33,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315770062] [2024-11-09 02:57:33,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:57:33,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:57:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:33,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:57:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:33,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 02:57:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:57:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 02:57:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 02:57:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:57:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 02:57:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-09 02:57:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:57:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 02:57:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 02:57:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 02:57:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-09 02:57:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-09 02:57:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:57:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 02:57:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 02:57:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:34,358 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-09 02:57:34,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:57:34,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315770062] [2024-11-09 02:57:34,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315770062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:57:34,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:57:34,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 02:57:34,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297936395] [2024-11-09 02:57:34,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:57:34,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 02:57:34,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:57:34,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 02:57:34,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 02:57:34,384 INFO L87 Difference]: Start difference. First operand has 113 states, 68 states have (on average 1.161764705882353) internal successors, (79), 69 states have internal predecessors, (79), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-09 02:57:34,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:57:34,855 INFO L93 Difference]: Finished difference Result 221 states and 305 transitions. [2024-11-09 02:57:34,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 02:57:34,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 99 [2024-11-09 02:57:34,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:57:34,864 INFO L225 Difference]: With dead ends: 221 [2024-11-09 02:57:34,864 INFO L226 Difference]: Without dead ends: 105 [2024-11-09 02:57:34,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-09 02:57:34,869 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 117 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 02:57:34,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 349 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 02:57:34,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-09 02:57:34,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-09 02:57:34,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 62 states have (on average 1.1129032258064515) internal successors, (69), 63 states have internal predecessors, (69), 33 states have call successors, (33), 10 states have call predecessors, (33), 9 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-09 02:57:34,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 133 transitions. [2024-11-09 02:57:34,907 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 133 transitions. Word has length 99 [2024-11-09 02:57:34,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:57:34,908 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 133 transitions. [2024-11-09 02:57:34,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-09 02:57:34,909 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 133 transitions. [2024-11-09 02:57:34,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 02:57:34,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:57:34,912 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:57:34,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:57:34,913 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:57:34,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:57:34,913 INFO L85 PathProgramCache]: Analyzing trace with hash 254287568, now seen corresponding path program 1 times [2024-11-09 02:57:34,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:57:34,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950820527] [2024-11-09 02:57:34,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:57:34,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:57:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:57:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 02:57:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:57:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 02:57:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 02:57:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:57:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 02:57:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-09 02:57:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:57:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 02:57:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 02:57:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 02:57:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-09 02:57:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-09 02:57:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:57:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 02:57:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:36,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 02:57:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:37,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:57:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:37,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:57:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:37,501 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-09 02:57:37,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:57:37,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950820527] [2024-11-09 02:57:37,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950820527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:57:37,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:57:37,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-09 02:57:37,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027709355] [2024-11-09 02:57:37,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:57:37,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 02:57:37,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:57:37,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 02:57:37,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-11-09 02:57:37,505 INFO L87 Difference]: Start difference. First operand 105 states and 133 transitions. Second operand has 20 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 16 states have internal predecessors, (41), 7 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-09 02:57:38,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:57:38,738 INFO L93 Difference]: Finished difference Result 176 states and 217 transitions. [2024-11-09 02:57:38,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 02:57:38,742 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 16 states have internal predecessors, (41), 7 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) Word has length 114 [2024-11-09 02:57:38,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:57:38,748 INFO L225 Difference]: With dead ends: 176 [2024-11-09 02:57:38,748 INFO L226 Difference]: Without dead ends: 109 [2024-11-09 02:57:38,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=812, Unknown=0, NotChecked=0, Total=930 [2024-11-09 02:57:38,750 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 110 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 02:57:38,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 490 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 02:57:38,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-09 02:57:38,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2024-11-09 02:57:38,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 64 states have (on average 1.109375) internal successors, (71), 66 states have internal predecessors, (71), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-09 02:57:38,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 136 transitions. [2024-11-09 02:57:38,780 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 136 transitions. Word has length 114 [2024-11-09 02:57:38,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:57:38,780 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 136 transitions. [2024-11-09 02:57:38,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 16 states have internal predecessors, (41), 7 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-09 02:57:38,782 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 136 transitions. [2024-11-09 02:57:38,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 02:57:38,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:57:38,784 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 02:57:38,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:57:38,785 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:57:38,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:57:38,785 INFO L85 PathProgramCache]: Analyzing trace with hash -303983254, now seen corresponding path program 1 times [2024-11-09 02:57:38,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:57:38,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498374002] [2024-11-09 02:57:38,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:57:38,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:57:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 02:57:38,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1229963199] [2024-11-09 02:57:38,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:57:38,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:57:38,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:57:38,959 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) [2024-11-09 02:57:38,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 02:57:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:39,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 106 conjuncts are in the unsatisfiable core [2024-11-09 02:57:39,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:57:39,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 02:57:39,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2024-11-09 02:58:02,401 INFO L349 Elim1Store]: treesize reduction 110, result has 29.9 percent of original size [2024-11-09 02:58:02,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 107 treesize of output 152 [2024-11-09 02:58:02,629 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 24 proven. 31 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-09 02:58:02,629 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:58:03,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:58:03,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498374002] [2024-11-09 02:58:03,591 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 02:58:03,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229963199] [2024-11-09 02:58:03,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229963199] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:58:03,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 02:58:03,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2024-11-09 02:58:03,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259991352] [2024-11-09 02:58:03,592 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 02:58:03,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 02:58:03,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:58:03,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 02:58:03,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=743, Unknown=5, NotChecked=0, Total=812 [2024-11-09 02:58:03,594 INFO L87 Difference]: Start difference. First operand 108 states and 136 transitions. Second operand has 25 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 9 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 7 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-09 02:58:11,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 02:58:33,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:58:33,671 INFO L93 Difference]: Finished difference Result 140 states and 176 transitions. [2024-11-09 02:58:33,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 02:58:33,672 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 9 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 7 states have call predecessors, (19), 8 states have call successors, (19) Word has length 116 [2024-11-09 02:58:33,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:58:33,674 INFO L225 Difference]: With dead ends: 140 [2024-11-09 02:58:33,674 INFO L226 Difference]: Without dead ends: 138 [2024-11-09 02:58:33,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 44.5s TimeCoverageRelationStatistics Valid=202, Invalid=2338, Unknown=10, NotChecked=0, Total=2550 [2024-11-09 02:58:33,676 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 165 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 122 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-09 02:58:33,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1042 Invalid, 2460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 2337 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2024-11-09 02:58:33,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-09 02:58:33,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 125. [2024-11-09 02:58:33,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 77 states have (on average 1.12987012987013) internal successors, (87), 80 states have internal predecessors, (87), 34 states have call successors, (34), 11 states have call predecessors, (34), 13 states have return successors, (38), 33 states have call predecessors, (38), 32 states have call successors, (38) [2024-11-09 02:58:33,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 159 transitions. [2024-11-09 02:58:33,698 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 159 transitions. Word has length 116 [2024-11-09 02:58:33,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:58:33,701 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 159 transitions. [2024-11-09 02:58:33,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 21 states have (on average 2.238095238095238) internal successors, (47), 21 states have internal predecessors, (47), 9 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 7 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-09 02:58:33,701 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 159 transitions. [2024-11-09 02:58:33,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 02:58:33,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:58:33,703 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 02:58:33,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 02:58:33,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:58:33,904 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:58:33,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:58:33,905 INFO L85 PathProgramCache]: Analyzing trace with hash 376075116, now seen corresponding path program 1 times [2024-11-09 02:58:33,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:58:33,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739233627] [2024-11-09 02:58:33,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:58:33,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:58:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:58:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 02:58:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:58:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 02:58:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 02:58:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:58:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 02:58:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-09 02:58:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:58:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 02:58:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 02:58:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 02:58:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-09 02:58:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-09 02:58:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:58:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 02:58:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 02:58:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:58:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:58:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:34,748 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-09 02:58:34,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:58:34,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739233627] [2024-11-09 02:58:34,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739233627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:58:34,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:58:34,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 02:58:34,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558062285] [2024-11-09 02:58:34,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:58:34,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 02:58:34,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:58:34,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 02:58:34,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 02:58:34,750 INFO L87 Difference]: Start difference. First operand 125 states and 159 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 02:58:35,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:58:35,150 INFO L93 Difference]: Finished difference Result 219 states and 274 transitions. [2024-11-09 02:58:35,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 02:58:35,151 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 116 [2024-11-09 02:58:35,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:58:35,153 INFO L225 Difference]: With dead ends: 219 [2024-11-09 02:58:35,153 INFO L226 Difference]: Without dead ends: 137 [2024-11-09 02:58:35,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 02:58:35,154 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 37 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 02:58:35,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 335 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 02:58:35,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-09 02:58:35,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 131. [2024-11-09 02:58:35,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 83 states have (on average 1.144578313253012) internal successors, (95), 86 states have internal predecessors, (95), 34 states have call successors, (34), 11 states have call predecessors, (34), 13 states have return successors, (38), 33 states have call predecessors, (38), 32 states have call successors, (38) [2024-11-09 02:58:35,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 167 transitions. [2024-11-09 02:58:35,182 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 167 transitions. Word has length 116 [2024-11-09 02:58:35,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:58:35,187 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 167 transitions. [2024-11-09 02:58:35,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 02:58:35,187 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 167 transitions. [2024-11-09 02:58:35,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 02:58:35,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:58:35,188 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 02:58:35,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:58:35,189 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:58:35,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:58:35,189 INFO L85 PathProgramCache]: Analyzing trace with hash 634240554, now seen corresponding path program 1 times [2024-11-09 02:58:35,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:58:35,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303801841] [2024-11-09 02:58:35,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:58:35,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:58:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 02:58:35,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [51798302] [2024-11-09 02:58:35,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:58:35,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:58:35,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:58:35,315 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) [2024-11-09 02:58:35,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 02:58:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:35,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 124 conjuncts are in the unsatisfiable core [2024-11-09 02:58:35,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:58:35,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 02:58:35,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 02:58:35,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2024-11-09 02:59:02,881 INFO L349 Elim1Store]: treesize reduction 260, result has 33.5 percent of original size [2024-11-09 02:59:02,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 308 treesize of output 551 [2024-11-09 02:59:03,169 INFO L349 Elim1Store]: treesize reduction 170, result has 21.3 percent of original size [2024-11-09 02:59:03,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 256 treesize of output 420 [2024-11-09 02:59:03,536 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 24 proven. 31 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-09 02:59:03,536 INFO L311 TraceCheckSpWp]: Computing backward predicates...